/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"

#include "public/web/WebFrame.h"

#include "SkBitmap.h"
#include "SkCanvas.h"
#include "bindings/core/v8/V8Node.h"
#include "core/UserAgentStyleSheets.h"
#include "core/clipboard/DataTransfer.h"
#include "core/css/StyleSheetContents.h"
#include "core/css/resolver/StyleResolver.h"
#include "core/css/resolver/ViewportStyleResolver.h"
#include "core/dom/DocumentMarkerController.h"
#include "core/dom/Fullscreen.h"
#include "core/dom/NodeRenderStyle.h"
#include "core/dom/Range.h"
#include "core/editing/Editor.h"
#include "core/editing/FrameSelection.h"
#include "core/editing/SpellChecker.h"
#include "core/editing/VisiblePosition.h"
#include "core/events/MouseEvent.h"
#include "core/fetch/FetchRequest.h"
#include "core/fetch/MemoryCache.h"
#include "core/fetch/ResourceFetcher.h"
#include "core/frame/FrameHost.h"
#include "core/frame/FrameView.h"
#include "core/frame/LocalFrame.h"
#include "core/frame/PinchViewport.h"
#include "core/frame/Settings.h"
#include "core/html/HTMLDocument.h"
#include "core/html/HTMLFormElement.h"
#include "core/html/HTMLMediaElement.h"
#include "core/loader/DocumentThreadableLoader.h"
#include "core/loader/DocumentThreadableLoaderClient.h"
#include "core/loader/FrameLoadRequest.h"
#include "core/loader/ThreadableLoader.h"
#include "core/page/EventHandler.h"
#include "core/page/Page.h"
#include "core/rendering/HitTestResult.h"
#include "core/rendering/RenderFullScreen.h"
#include "core/rendering/RenderView.h"
#include "core/rendering/compositing/RenderLayerCompositor.h"
#include "core/testing/NullExecutionContext.h"
#include "core/testing/URLTestHelpers.h"
#include "modules/mediastream/MediaStream.h"
#include "modules/mediastream/MediaStreamRegistry.h"
#include "platform/DragImage.h"
#include "platform/RuntimeEnabledFeatures.h"
#include "platform/UserGestureIndicator.h"
#include "platform/geometry/FloatRect.h"
#include "platform/network/ResourceError.h"
#include "platform/scroll/ScrollbarTheme.h"
#include "platform/weborigin/SchemeRegistry.h"
#include "public/platform/Platform.h"
#include "public/platform/WebFloatRect.h"
#include "public/platform/WebSelectionBound.h"
#include "public/platform/WebThread.h"
#include "public/platform/WebURL.h"
#include "public/platform/WebURLResponse.h"
#include "public/platform/WebUnitTestSupport.h"
#include "public/web/WebCache.h"
#include "public/web/WebDataSource.h"
#include "public/web/WebDocument.h"
#include "public/web/WebFindOptions.h"
#include "public/web/WebFormElement.h"
#include "public/web/WebFrameClient.h"
#include "public/web/WebHistoryItem.h"
#include "public/web/WebPrintParams.h"
#include "public/web/WebRange.h"
#include "public/web/WebRemoteFrame.h"
#include "public/web/WebScriptSource.h"
#include "public/web/WebSearchableFormData.h"
#include "public/web/WebSecurityOrigin.h"
#include "public/web/WebSecurityPolicy.h"
#include "public/web/WebSettings.h"
#include "public/web/WebSpellCheckClient.h"
#include "public/web/WebTextCheckingCompletion.h"
#include "public/web/WebTextCheckingResult.h"
#include "public/web/WebViewClient.h"
#include "web/WebLocalFrameImpl.h"
#include "web/WebRemoteFrameImpl.h"
#include "web/WebViewImpl.h"
#include "web/tests/FrameTestHelpers.h"
#include "wtf/Forward.h"
#include "wtf/dtoa/utils.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <map>
#include <v8.h>

namespace {

using blink::URLTestHelpers::toKURL;
using blink::FrameTestHelpers::runPendingTasks;
using blink::FrameTestHelpers::UseMockScrollbarSettings;
using namespace blink;

const int touchPointPadding = 32;

#define EXPECT_RECT_EQ(a, b) \
    do {                                   \
        EXPECT_EQ(a.x(), b.x());           \
        EXPECT_EQ(a.y(), b.y());           \
        EXPECT_EQ(a.width(), b.width());   \
        EXPECT_EQ(a.height(), b.height()); \
    } while (false)

#define EXPECT_POINT_EQ(expected, actual) \
    do { \
        EXPECT_EQ((expected).x(), (actual).x()); \
        EXPECT_EQ((expected).y(), (actual).y()); \
    } while (false)

#define EXPECT_FLOAT_POINT_EQ(expected, actual) \
    do { \
        EXPECT_FLOAT_EQ((expected).x(), (actual).x()); \
        EXPECT_FLOAT_EQ((expected).y(), (actual).y()); \
    } while (false)


class WebFrameTest : public testing::Test {
protected:
    WebFrameTest()
        : m_baseURL("http://internal.test/")
        , m_notBaseURL("http://external.test/")
        , m_chromeURL("chrome://")
    {
    }

    virtual ~WebFrameTest()
    {
        Platform::current()->unitTestSupport()->unregisterAllMockedURLs();
    }

    void registerMockedHttpURLLoad(const std::string& fileName)
    {
        URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8(fileName.c_str()));
    }

    void registerMockedChromeURLLoad(const std::string& fileName)
    {
        URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_chromeURL.c_str()), WebString::fromUTF8(fileName.c_str()));
    }


    void registerMockedHttpURLLoadWithCSP(const std::string& fileName, const std::string& csp, bool reportOnly = false)
    {
        WebURLResponse response;
        response.initialize();
        response.setMIMEType("text/html");
        response.addHTTPHeaderField(reportOnly ? WebString("Content-Security-Policy-Report-Only") : WebString("Content-Security-Policy"), WebString::fromUTF8(csp));
        std::string fullString = m_baseURL + fileName;
        URLTestHelpers::registerMockedURLLoadWithCustomResponse(toKURL(fullString.c_str()), WebString::fromUTF8(fileName.c_str()), WebString::fromUTF8(""), response);
    }

    void applyViewportStyleOverride(FrameTestHelpers::WebViewHelper* webViewHelper)
    {
        RefPtrWillBeRawPtr<StyleSheetContents> styleSheet = StyleSheetContents::create(CSSParserContext(UASheetMode, 0));
        styleSheet->parseString(String(blink::viewportAndroidCss, sizeof(blink::viewportAndroidCss)));
        OwnPtrWillBeRawPtr<RuleSet> ruleSet = RuleSet::create();
        ruleSet->addRulesFromSheet(styleSheet.get(), MediaQueryEvaluator("screen"));

        Document* document = toLocalFrame(webViewHelper->webViewImpl()->page()->mainFrame())->document();
        document->ensureStyleResolver().viewportStyleResolver()->collectViewportRules(ruleSet.get(), ViewportStyleResolver::UserAgentOrigin);
        document->ensureStyleResolver().viewportStyleResolver()->resolve();
    }

    static void configueCompositingWebView(WebSettings* settings)
    {
        settings->setAcceleratedCompositingEnabled(true);
        settings->setPreferCompositingToLCDTextEnabled(true);
    }

    static void configurePinchVirtualViewport(WebSettings* settings)
    {
        settings->setPinchVirtualViewportEnabled(true);
        settings->setViewportMetaEnabled(true);
        settings->setViewportEnabled(true);
        settings->setMainFrameResizesAreOrientationChanges(true);
        settings->setShrinksViewportContentToFit(true);
    }

    static void configureLoadsImagesAutomatically(WebSettings* settings)
    {
        settings->setLoadsImagesAutomatically(true);
    }

    void initializeTextSelectionWebView(const std::string& url, FrameTestHelpers::WebViewHelper* webViewHelper)
    {
        webViewHelper->initializeAndLoad(url, true);
        webViewHelper->webView()->settings()->setDefaultFontSize(12);
        webViewHelper->webView()->resize(WebSize(640, 480));
    }

    PassOwnPtr<DragImage> nodeImageTestSetup(FrameTestHelpers::WebViewHelper* webViewHelper, const std::string& testcase)
    {
        registerMockedHttpURLLoad("nodeimage.html");
        webViewHelper->initializeAndLoad(m_baseURL + "nodeimage.html");
        webViewHelper->webView()->resize(WebSize(640, 480));
        webViewHelper->webView()->layout();
        RefPtrWillBeRawPtr<LocalFrame> frame = toLocalFrame(webViewHelper->webViewImpl()->page()->mainFrame());
        ASSERT(frame);
        Element* element = frame->document()->getElementById(testcase.c_str());
        return frame->nodeImage(*element);
    }

    std::string m_baseURL;
    std::string m_notBaseURL;
    std::string m_chromeURL;
};

TEST_F(WebFrameTest, ContentText)
{
    registerMockedHttpURLLoad("iframes_test.html");
    registerMockedHttpURLLoad("visible_iframe.html");
    registerMockedHttpURLLoad("invisible_iframe.html");
    registerMockedHttpURLLoad("zero_sized_iframe.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "iframes_test.html");

    // Now retrieve the frames text and test it only includes visible elements.
    std::string content = webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
    EXPECT_NE(std::string::npos, content.find(" visible paragraph"));
    EXPECT_NE(std::string::npos, content.find(" visible iframe"));
    EXPECT_EQ(std::string::npos, content.find(" invisible pararaph"));
    EXPECT_EQ(std::string::npos, content.find(" invisible iframe"));
    EXPECT_EQ(std::string::npos, content.find("iframe with zero size"));
}

TEST_F(WebFrameTest, FrameForEnteredContext)
{
    registerMockedHttpURLLoad("iframes_test.html");
    registerMockedHttpURLLoad("visible_iframe.html");
    registerMockedHttpURLLoad("invisible_iframe.html");
    registerMockedHttpURLLoad("zero_sized_iframe.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "iframes_test.html", true);

    v8::HandleScope scope(v8::Isolate::GetCurrent());
    EXPECT_EQ(webViewHelper.webView()->mainFrame(), WebLocalFrame::frameForContext(webViewHelper.webView()->mainFrame()->mainWorldScriptContext()));
    EXPECT_EQ(webViewHelper.webView()->mainFrame()->firstChild(), WebLocalFrame::frameForContext(webViewHelper.webView()->mainFrame()->firstChild()->mainWorldScriptContext()));
}

TEST_F(WebFrameTest, FormWithNullFrame)
{
    registerMockedHttpURLLoad("form.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "form.html");

    WebVector<WebFormElement> forms;
    webViewHelper.webView()->mainFrame()->document().forms(forms);
    webViewHelper.reset();

    EXPECT_EQ(forms.size(), 1U);

    // This test passes if this doesn't crash.
    WebSearchableFormData searchableDataForm(forms[0]);
}

TEST_F(WebFrameTest, ChromePageJavascript)
{
    registerMockedChromeURLLoad("history.html");

    // Pass true to enable JavaScript.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_chromeURL + "history.html", true);

    // Try to run JS against the chrome-style URL.
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:document.body.appendChild(document.createTextNode('Clobbered'))");

    // Required to see any updates in contentAsText.
    webViewHelper.webView()->layout();

    // Now retrieve the frame's text and ensure it was modified by running javascript.
    std::string content = webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
    EXPECT_NE(std::string::npos, content.find("Clobbered"));
}

TEST_F(WebFrameTest, ChromePageNoJavascript)
{
    registerMockedChromeURLLoad("history.html");

    /// Pass true to enable JavaScript.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_chromeURL + "history.html", true);

    // Try to run JS against the chrome-style URL after prohibiting it.
    WebSecurityPolicy::registerURLSchemeAsNotAllowingJavascriptURLs("chrome");
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:document.body.appendChild(document.createTextNode('Clobbered'))");

    // Required to see any updates in contentAsText.
    webViewHelper.webView()->layout();

    // Now retrieve the frame's text and ensure it wasn't modified by running javascript.
    std::string content = webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
    EXPECT_EQ(std::string::npos, content.find("Clobbered"));
}

TEST_F(WebFrameTest, LocationSetHostWithMissingPort)
{
    std::string fileName = "print-location-href.html";
    registerMockedHttpURLLoad(fileName);
    URLTestHelpers::registerMockedURLLoad(toKURL("http://internal.test:0/" + fileName), WebString::fromUTF8(fileName));

    FrameTestHelpers::WebViewHelper webViewHelper;

    /// Pass true to enable JavaScript.
    webViewHelper.initializeAndLoad(m_baseURL + fileName, true);

    // Setting host to "hostname:" should be treated as "hostname:0".
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:location.host = 'internal.test:'; void 0;");

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:document.body.textContent = location.href; void 0;");

    std::string content = webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
    EXPECT_EQ("http://internal.test:0/" + fileName, content);
}

TEST_F(WebFrameTest, LocationSetEmptyPort)
{
    std::string fileName = "print-location-href.html";
    registerMockedHttpURLLoad(fileName);
    URLTestHelpers::registerMockedURLLoad(toKURL("http://internal.test:0/" + fileName), WebString::fromUTF8(fileName));

    FrameTestHelpers::WebViewHelper webViewHelper;

    /// Pass true to enable JavaScript.
    webViewHelper.initializeAndLoad(m_baseURL + fileName, true);

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:location.port = ''; void 0;");

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:document.body.textContent = location.href; void 0;");

    std::string content = webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
    EXPECT_EQ("http://internal.test:0/" + fileName, content);
}

class CSSCallbackWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    CSSCallbackWebFrameClient() : m_updateCount(0) { }
    virtual void didMatchCSS(WebLocalFrame*, const WebVector<WebString>& newlyMatchingSelectors, const WebVector<WebString>& stoppedMatchingSelectors) override;

    std::map<WebLocalFrame*, std::set<std::string> > m_matchedSelectors;
    int m_updateCount;
};

void CSSCallbackWebFrameClient::didMatchCSS(WebLocalFrame* frame, const WebVector<WebString>& newlyMatchingSelectors, const WebVector<WebString>& stoppedMatchingSelectors)
{
    ++m_updateCount;
    std::set<std::string>& frameSelectors = m_matchedSelectors[frame];
    for (size_t i = 0; i < newlyMatchingSelectors.size(); ++i) {
        std::string selector = newlyMatchingSelectors[i].utf8();
        EXPECT_EQ(0U, frameSelectors.count(selector)) << selector;
        frameSelectors.insert(selector);
    }
    for (size_t i = 0; i < stoppedMatchingSelectors.size(); ++i) {
        std::string selector = stoppedMatchingSelectors[i].utf8();
        EXPECT_EQ(1U, frameSelectors.count(selector)) << selector;
        frameSelectors.erase(selector);
    }
}

class WebFrameCSSCallbackTest : public testing::Test {
protected:
    WebFrameCSSCallbackTest()
    {

        m_frame = m_helper.initializeAndLoad("about:blank", true, &m_client)->mainFrame()->toWebLocalFrame();
    }

    ~WebFrameCSSCallbackTest()
    {
        EXPECT_EQ(1U, m_client.m_matchedSelectors.size());
    }

    WebDocument doc() const
    {
        return m_frame->document();
    }

    int updateCount() const
    {
        return m_client.m_updateCount;
    }

    const std::set<std::string>& matchedSelectors()
    {
        return m_client.m_matchedSelectors[m_frame];
    }

    void loadHTML(const std::string& html)
    {
        FrameTestHelpers::loadHTMLString(m_frame, html, toKURL("about:blank"));
    }

    void executeScript(const WebString& code)
    {
        m_frame->executeScript(WebScriptSource(code));
        m_frame->view()->layout();
        runPendingTasks();
    }

    CSSCallbackWebFrameClient m_client;
    FrameTestHelpers::WebViewHelper m_helper;
    WebLocalFrame* m_frame;
};

TEST_F(WebFrameCSSCallbackTest, AuthorStyleSheet)
{
    loadHTML(
        "<style>"
        // This stylesheet checks that the internal property and value can't be
        // set by a stylesheet, only WebDocument::watchCSSSelectors().
        "div.initial_on { -internal-callback: none; }"
        "div.initial_off { -internal-callback: -internal-presence; }"
        "</style>"
        "<div class=\"initial_on\"></div>"
        "<div class=\"initial_off\"></div>");

    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("div.initial_on"));
    m_frame->document().watchCSSSelectors(WebVector<WebString>(selectors));
    m_frame->view()->layout();
    runPendingTasks();
    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("div.initial_on"));

    // Check that adding a watched selector calls back for already-present nodes.
    selectors.push_back(WebString::fromUTF8("div.initial_off"));
    doc().watchCSSSelectors(WebVector<WebString>(selectors));
    m_frame->view()->layout();
    runPendingTasks();
    EXPECT_EQ(2, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("div.initial_off", "div.initial_on"));

    // Check that we can turn off callbacks for certain selectors.
    doc().watchCSSSelectors(WebVector<WebString>());
    m_frame->view()->layout();
    runPendingTasks();
    EXPECT_EQ(3, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre());
}

TEST_F(WebFrameCSSCallbackTest, SharedRenderStyle)
{
    // Check that adding an element calls back when it matches an existing rule.
    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("span"));
    doc().watchCSSSelectors(WebVector<WebString>(selectors));

    executeScript(
        "i1 = document.createElement('span');"
        "i1.id = 'first_span';"
        "document.body.appendChild(i1)");
    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));

    // Adding a second element that shares a RenderStyle shouldn't call back.
    // We use <span>s to avoid default style rules that can set
    // RenderStyle::unique().
    executeScript(
        "i2 = document.createElement('span');"
        "i2.id = 'second_span';"
        "i1 = document.getElementById('first_span');"
        "i1.parentNode.insertBefore(i2, i1.nextSibling);");
    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));

    // Removing the first element shouldn't call back.
    executeScript(
        "i1 = document.getElementById('first_span');"
        "i1.parentNode.removeChild(i1);");
    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));

    // But removing the second element *should* call back.
    executeScript(
        "i2 = document.getElementById('second_span');"
        "i2.parentNode.removeChild(i2);");
    EXPECT_EQ(2, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre());
}

TEST_F(WebFrameCSSCallbackTest, CatchesAttributeChange)
{
    loadHTML("<span></span>");

    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("span[attr=\"value\"]"));
    doc().watchCSSSelectors(WebVector<WebString>(selectors));
    runPendingTasks();

    EXPECT_EQ(0, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre());

    executeScript(
        "document.querySelector('span').setAttribute('attr', 'value');");
    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span[attr=\"value\"]"));
}

TEST_F(WebFrameCSSCallbackTest, DisplayNone)
{
    loadHTML("<div style='display:none'><span></span></div>");

    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("span"));
    doc().watchCSSSelectors(WebVector<WebString>(selectors));
    runPendingTasks();

    EXPECT_EQ(0, updateCount()) << "Don't match elements in display:none trees.";

    executeScript(
        "d = document.querySelector('div');"
        "d.style.display = 'block';");
    EXPECT_EQ(1, updateCount()) << "Match elements when they become displayed.";
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));

    executeScript(
        "d = document.querySelector('div');"
        "d.style.display = 'none';");
    EXPECT_EQ(2, updateCount()) << "Unmatch elements when they become undisplayed.";
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre());

    executeScript(
        "s = document.querySelector('span');"
        "s.style.display = 'none';");
    EXPECT_EQ(2, updateCount()) << "No effect from no-display'ing a span that's already undisplayed.";

    executeScript(
        "d = document.querySelector('div');"
        "d.style.display = 'block';");
    EXPECT_EQ(2, updateCount()) << "No effect from displaying a div whose span is display:none.";

    executeScript(
        "s = document.querySelector('span');"
        "s.style.display = 'inline';");
    EXPECT_EQ(3, updateCount()) << "Now the span is visible and produces a callback.";
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));

    executeScript(
        "s = document.querySelector('span');"
        "s.style.display = 'none';");
    EXPECT_EQ(4, updateCount()) << "Undisplaying the span directly should produce another callback.";
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre());
}

TEST_F(WebFrameCSSCallbackTest, Reparenting)
{
    loadHTML(
        "<div id='d1'><span></span></div>"
        "<div id='d2'></div>");

    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("span"));
    doc().watchCSSSelectors(WebVector<WebString>(selectors));
    m_frame->view()->layout();
    runPendingTasks();

    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));

    executeScript(
        "s = document.querySelector('span');"
        "d2 = document.getElementById('d2');"
        "d2.appendChild(s);");
    EXPECT_EQ(1, updateCount()) << "Just moving an element that continues to match shouldn't send a spurious callback.";
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"));
}

TEST_F(WebFrameCSSCallbackTest, MultiSelector)
{
    loadHTML("<span></span>");

    // Check that selector lists match as the whole list, not as each element
    // independently.
    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("span"));
    selectors.push_back(WebString::fromUTF8("span,p"));
    doc().watchCSSSelectors(WebVector<WebString>(selectors));
    m_frame->view()->layout();
    runPendingTasks();

    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span", "span, p"));
}

TEST_F(WebFrameCSSCallbackTest, InvalidSelector)
{
    loadHTML("<p><span></span></p>");

    // Build a list with one valid selector and one invalid.
    std::vector<WebString> selectors;
    selectors.push_back(WebString::fromUTF8("span"));
    selectors.push_back(WebString::fromUTF8("[")); // Invalid.
    selectors.push_back(WebString::fromUTF8("p span")); // Not compound.
    doc().watchCSSSelectors(WebVector<WebString>(selectors));
    m_frame->view()->layout();
    runPendingTasks();

    EXPECT_EQ(1, updateCount());
    EXPECT_THAT(matchedSelectors(), testing::ElementsAre("span"))
        << "An invalid selector shouldn't prevent other selectors from matching.";
}

TEST_F(WebFrameTest, DispatchMessageEventWithOriginCheck)
{
    registerMockedHttpURLLoad("postmessage_test.html");

    // Pass true to enable JavaScript.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "postmessage_test.html", true);

    // Send a message with the correct origin.
    WebSecurityOrigin correctOrigin(WebSecurityOrigin::create(toKURL(m_baseURL)));
    WebDOMEvent event = webViewHelper.webView()->mainFrame()->document().createEvent("MessageEvent");
    WebDOMMessageEvent message = event.to<WebDOMMessageEvent>();
    WebSerializedScriptValue data(WebSerializedScriptValue::fromString("foo"));
    message.initMessageEvent("message", false, false, data, "http://origin.com", 0, "");
    webViewHelper.webView()->mainFrame()->dispatchMessageEventWithOriginCheck(correctOrigin, message);

    // Send another message with incorrect origin.
    WebSecurityOrigin incorrectOrigin(WebSecurityOrigin::create(toKURL(m_chromeURL)));
    webViewHelper.webView()->mainFrame()->dispatchMessageEventWithOriginCheck(incorrectOrigin, message);

    // Required to see any updates in contentAsText.
    webViewHelper.webView()->layout();

    // Verify that only the first addition is in the body of the page.
    std::string content = webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
    EXPECT_NE(std::string::npos, content.find("Message 1."));
    EXPECT_EQ(std::string::npos, content.find("Message 2."));
}

TEST_F(WebFrameTest, PostMessageThenDetach)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank");

    RefPtrWillBeRawPtr<LocalFrame> frame = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame());
    NonThrowableExceptionState exceptionState;
    frame->domWindow()->postMessage(SerializedScriptValue::create("message"), 0, "*", frame->domWindow(), exceptionState);
    webViewHelper.reset();
    EXPECT_FALSE(exceptionState.hadException());

    // Success is not crashing.
    runPendingTasks();
}

class FixedLayoutTestWebViewClient : public FrameTestHelpers::TestWebViewClient {
 public:
    virtual WebScreenInfo screenInfo() override { return m_screenInfo; }

    WebScreenInfo m_screenInfo;
};

class FakeCompositingWebViewClient : public FixedLayoutTestWebViewClient {
public:
    virtual bool enterFullScreen() override { return true; }
};

// Viewport settings need to be set before the page gets loaded
static void enableViewportSettings(WebSettings* settings)
{
    settings->setViewportMetaEnabled(true);
    settings->setViewportEnabled(true);
    settings->setMainFrameResizesAreOrientationChanges(true);
    settings->setShrinksViewportContentToFit(true);
}

// Helper function to set autosizing multipliers on a document.
static bool setTextAutosizingMultiplier(Document* document, float multiplier)
{
    bool multiplierSet = false;
    for (RenderObject* renderer = document->renderView(); renderer; renderer = renderer->nextInPreOrder()) {
        if (renderer->style()) {
            renderer->style()->setTextAutosizingMultiplier(multiplier);

            EXPECT_EQ(multiplier, renderer->style()->textAutosizingMultiplier());
            multiplierSet = true;
        }
    }
    return multiplierSet;
}

// Helper function to check autosizing multipliers on a document.
static bool checkTextAutosizingMultiplier(Document* document, float multiplier)
{
    bool multiplierChecked = false;
    for (RenderObject* renderer = document->renderView(); renderer; renderer = renderer->nextInPreOrder()) {
        if (renderer->style() && renderer->isText()) {
            EXPECT_EQ(multiplier, renderer->style()->textAutosizingMultiplier());
            multiplierChecked = true;
        }
    }
    return multiplierChecked;
}

TEST_F(WebFrameTest, ChangeInFixedLayoutResetsTextAutosizingMultipliers)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);

    Document* document = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document();
    document->settings()->setTextAutosizingEnabled(true);
    EXPECT_TRUE(document->settings()->textAutosizingEnabled());
    webViewHelper.webViewImpl()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webViewImpl()->layout();

    EXPECT_TRUE(setTextAutosizingMultiplier(document, 2));

    ViewportDescription description = document->viewportDescription();
    // Choose a width that's not going match the viewport width of the loaded document.
    description.minWidth = Length(100, blink::Fixed);
    description.maxWidth = Length(100, blink::Fixed);
    webViewHelper.webViewImpl()->updatePageDefinedViewportConstraints(description);

    EXPECT_TRUE(checkTextAutosizingMultiplier(document, 1));
}

TEST_F(WebFrameTest, WorkingTextAutosizingMultipliers_VirtualViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    const std::string htmlFile = "fixed_layout.html";
    registerMockedHttpURLLoad(htmlFile);

    FixedLayoutTestWebViewClient client;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + htmlFile, true, 0, &client, configurePinchVirtualViewport);

    Document* document = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document();
    document->settings()->setTextAutosizingEnabled(true);
    EXPECT_TRUE(document->settings()->textAutosizingEnabled());

    webViewHelper.webView()->resize(WebSize(490, 800));

    // Multiplier: 980 / 490 = 2.0
    EXPECT_TRUE(checkTextAutosizingMultiplier(document, 2.0));
}

TEST_F(WebFrameTest, SetFrameRectInvalidatesTextAutosizingMultipliers)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("iframe_reload.html");
    registerMockedHttpURLLoad("visible_iframe.html");

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "iframe_reload.html", true, 0, &client, enableViewportSettings);

    LocalFrame* mainFrame = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame());
    Document* document = mainFrame->document();
    FrameView* frameView = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    document->settings()->setTextAutosizingEnabled(true);
    EXPECT_TRUE(document->settings()->textAutosizingEnabled());
    webViewHelper.webViewImpl()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webViewImpl()->layout();

    for (Frame* frame = mainFrame; frame; frame = frame->tree().traverseNext()) {
        if (!frame->isLocalFrame())
            continue;
        EXPECT_TRUE(setTextAutosizingMultiplier(toLocalFrame(frame)->document(), 2));
        for (RenderObject* renderer = toLocalFrame(frame)->document()->renderView(); renderer; renderer = renderer->nextInPreOrder()) {
            if (renderer->isText())
                EXPECT_FALSE(renderer->needsLayout());
        }
    }

    frameView->setFrameRect(IntRect(0, 0, 200, 200));
    for (Frame* frame = mainFrame; frame; frame = frame->tree().traverseNext()) {
        if (!frame->isLocalFrame())
            continue;
        for (RenderObject* renderer = toLocalFrame(frame)->document()->renderView(); renderer; renderer = renderer->nextInPreOrder()) {
            if (renderer->isText())
                EXPECT_TRUE(renderer->needsLayout());
        }
    }
}

TEST_F(WebFrameTest, ZeroHeightPositiveWidthNotIgnored)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 1280;
    int viewportHeight = 0;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());
    EXPECT_EQ(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
}

TEST_F(WebFrameTest, DeviceScaleFactorUsesDefaultWithoutViewportTag)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("no_viewport_tag.html");

    int viewportWidth = 640;
    int viewportHeight = 480;

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 2;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "no_viewport_tag.html", true, 0, &client, enableViewportSettings);

    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_EQ(2, webViewHelper.webView()->deviceScaleFactor());

    // Device scale factor should be independent of page scale.
    webViewHelper.webView()->setPageScaleFactorLimits(1, 2);
    webViewHelper.webView()->setPageScaleFactor(0.5);
    webViewHelper.webView()->layout();
    EXPECT_EQ(1, webViewHelper.webView()->pageScaleFactor());

    // Force the layout to happen before leaving the test.
    webViewHelper.webView()->mainFrame()->contentAsText(1024).utf8();
}

TEST_F(WebFrameTest, FixedLayoutInitializeAtMinimumScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    int defaultFixedLayoutWidth = 980;
    float minimumPageScaleFactor = viewportWidth / (float) defaultFixedLayoutWidth;
    EXPECT_EQ(minimumPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
    EXPECT_EQ(minimumPageScaleFactor, webViewHelper.webView()->minimumPageScaleFactor());

    // Assume the user has pinch zoomed to page scale factor 2.
    float userPinchPageScaleFactor = 2;
    webViewHelper.webView()->setPageScaleFactor(userPinchPageScaleFactor);
    webViewHelper.webView()->layout();

    // Make sure we don't reset to initial scale if the page continues to load.
    webViewHelper.webViewImpl()->didCommitLoad(false, false);
    webViewHelper.webViewImpl()->didChangeContentsSize();
    EXPECT_EQ(userPinchPageScaleFactor, webViewHelper.webView()->pageScaleFactor());

    // Make sure we don't reset to initial scale if the viewport size changes.
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight + 100));
    EXPECT_EQ(userPinchPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, WideDocumentInitializeAtMinimumScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    registerMockedHttpURLLoad("wide_document.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "wide_document.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    int wideDocumentWidth = 1500;
    float minimumPageScaleFactor = viewportWidth / (float) wideDocumentWidth;
    EXPECT_EQ(minimumPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
    EXPECT_EQ(minimumPageScaleFactor, webViewHelper.webView()->minimumPageScaleFactor());

    // Assume the user has pinch zoomed to page scale factor 2.
    float userPinchPageScaleFactor = 2;
    webViewHelper.webView()->setPageScaleFactor(userPinchPageScaleFactor);
    webViewHelper.webView()->layout();

    // Make sure we don't reset to initial scale if the page continues to load.
    webViewHelper.webViewImpl()->didCommitLoad(false, false);
    webViewHelper.webViewImpl()->didChangeContentsSize();
    EXPECT_EQ(userPinchPageScaleFactor, webViewHelper.webView()->pageScaleFactor());

    // Make sure we don't reset to initial scale if the viewport size changes.
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight + 100));
    EXPECT_EQ(userPinchPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, DelayedViewportInitialScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-auto-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-auto-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(0.25f, webViewHelper.webView()->pageScaleFactor());

    Document* document = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document();
    ViewportDescription description = document->viewportDescription();
    description.zoom = 2;
    document->setViewportDescription(description);
    webViewHelper.webView()->layout();
    EXPECT_EQ(2, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, setLoadWithOverviewModeToFalse)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-auto-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-auto-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setLoadWithOverviewMode(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    // The page must be displayed at 100% zoom.
    EXPECT_EQ(1.0f, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, SetLoadWithOverviewModeToFalseAndNoWideViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("large-div.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "large-div.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setLoadWithOverviewMode(false);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    // The page must be displayed at 100% zoom, despite that it hosts a wide div element.
    EXPECT_EQ(1.0f, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, NoWideViewportIgnoresPageViewportWidth)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-auto-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-auto-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    // The page sets viewport width to 3000, but with UseWideViewport == false is must be ignored.
    EXPECT_EQ(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
    EXPECT_EQ(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().height());
}

TEST_F(WebFrameTest, NoWideViewportIgnoresPageViewportWidthButAccountsScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-wide-2x-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-wide-2x-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    // The page sets viewport width to 3000, but with UseWideViewport == false it must be ignored.
    // While the initial scale specified by the page must be accounted.
    EXPECT_EQ(viewportWidth / 2, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
    EXPECT_EQ(viewportHeight / 2, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().height());
}

TEST_F(WebFrameTest, WideViewportSetsTo980WithoutViewportTag)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("no_viewport_tag.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "no_viewport_tag.html", true, 0, &client, enableViewportSettings);
    applyViewportStyleOverride(&webViewHelper);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(980, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
    EXPECT_EQ(980.0 / viewportWidth * viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().height());
}

TEST_F(WebFrameTest, WideViewportSetsTo980WithXhtmlMp)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport/viewport-legacy-xhtmlmp.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &client, enableViewportSettings);
    applyViewportStyleOverride(&webViewHelper);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "viewport/viewport-legacy-xhtmlmp.html");

    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    EXPECT_EQ(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
    EXPECT_EQ(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().height());
}

TEST_F(WebFrameTest, NoWideViewportAndHeightInMeta)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-height-1000.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-height-1000.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
}

TEST_F(WebFrameTest, WideViewportSetsTo980WithAutoWidth)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-2x-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-2x-initial-scale.html", true, 0, &client, enableViewportSettings);
    applyViewportStyleOverride(&webViewHelper);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(980, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
    EXPECT_EQ(980.0 / viewportWidth * viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().height());
}

TEST_F(WebFrameTest, PageViewportInitialScaleOverridesLoadWithOverviewMode)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-wide-2x-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-wide-2x-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setLoadWithOverviewMode(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    // The page must be displayed at 200% zoom, as specified in its viewport meta tag.
    EXPECT_EQ(2.0f, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, setInitialPageScaleFactorPermanently)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    float enforcedPageScaleFactor = 2.0f;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    applyViewportStyleOverride(&webViewHelper);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setLoadWithOverviewMode(false);
    webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScaleFactor);
    webViewHelper.webView()->layout();

    EXPECT_EQ(enforcedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());

    int viewportWidth = 640;
    int viewportHeight = 480;
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_EQ(enforcedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());

    webViewHelper.webView()->setInitialPageScaleOverride(-1);
    webViewHelper.webView()->layout();
    EXPECT_EQ(1.0, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, PermanentInitialPageScaleFactorOverridesLoadWithOverviewMode)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-auto-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;
    float enforcedPageScaleFactor = 0.5f;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-auto-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setLoadWithOverviewMode(false);
    webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScaleFactor);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(enforcedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, PermanentInitialPageScaleFactorOverridesPageViewportInitialScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-wide-2x-initial-scale.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;
    float enforcedPageScaleFactor = 0.5f;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-wide-2x-initial-scale.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScaleFactor);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(enforcedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, SmallPermanentInitialPageScaleFactorIsClobbered)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    const char* pages[] = {
        // These pages trigger the clobbering condition. There must be a matching item in "pageScaleFactors" array.
        "viewport-device-0.5x-initial-scale.html",
        "viewport-initial-scale-1.html",
        // These ones do not.
        "viewport-auto-initial-scale.html",
        "viewport-target-densitydpi-device-and-fixed-width.html"
    };
    float pageScaleFactors[] = { 0.5f, 1.0f };
    for (size_t i = 0; i < ARRAY_SIZE(pages); ++i)
        registerMockedHttpURLLoad(pages[i]);

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 400;
    int viewportHeight = 300;
    float enforcedPageScaleFactor = 0.75f;

    for (size_t i = 0; i < ARRAY_SIZE(pages); ++i) {
        for (int quirkEnabled = 0; quirkEnabled <= 1; ++quirkEnabled) {
            FrameTestHelpers::WebViewHelper webViewHelper;
            webViewHelper.initializeAndLoad(m_baseURL + pages[i], true, 0, &client, enableViewportSettings);
            applyViewportStyleOverride(&webViewHelper);
            webViewHelper.webView()->settings()->setClobberUserAgentInitialScaleQuirk(quirkEnabled);
            webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScaleFactor);
            webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

            float expectedPageScaleFactor = quirkEnabled && i < ARRAY_SIZE(pageScaleFactors) ? pageScaleFactors[i] : enforcedPageScaleFactor;
            EXPECT_EQ(expectedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
        }
    }
}

TEST_F(WebFrameTest, PermanentInitialPageScaleFactorAffectsLayoutWidth)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;
    float enforcedPageScaleFactor = 0.5;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->settings()->setLoadWithOverviewMode(false);
    webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScaleFactor);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(viewportWidth / enforcedPageScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
    EXPECT_EQ(enforcedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, SetForceZeroLayoutHeight)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("200-by-300.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;

    webViewHelper.initializeAndLoad(m_baseURL + "200-by-300.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_LE(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
    webViewHelper.webView()->settings()->setForceZeroLayoutHeight(true);
    EXPECT_TRUE(webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->needsLayout());

    EXPECT_EQ(0, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());

    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight * 2));
    EXPECT_FALSE(webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->needsLayout());
    EXPECT_EQ(0, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());

    webViewHelper.webView()->resize(WebSize(viewportWidth * 2, viewportHeight));
    webViewHelper.webView()->layout();
    EXPECT_EQ(0, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());

    webViewHelper.webView()->settings()->setForceZeroLayoutHeight(false);
    EXPECT_LE(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
}

TEST_F(WebFrameTest, SetForceZeroLayoutHeightWorksAcrossNavigations)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("200-by-300.html");
    registerMockedHttpURLLoad("large-div.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;

    webViewHelper.initializeAndLoad(m_baseURL + "200-by-300.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setForceZeroLayoutHeight(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "large-div.html");
    webViewHelper.webView()->layout();

    EXPECT_EQ(0, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
}

TEST_F(WebFrameTest, SetForceZeroLayoutHeightWithWideViewportQuirk)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("200-by-300.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;

    webViewHelper.initializeAndLoad(m_baseURL + "200-by-300.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->settings()->setForceZeroLayoutHeight(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_EQ(0, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
}

TEST_F(WebFrameTest, WideViewportAndWideContentWithInitialScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("wide_document_width_viewport.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 600;
    int viewportHeight = 800;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->settings()->setViewportMetaLayoutSizeQuirk(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "wide_document_width_viewport.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    int wideDocumentWidth = 800;
    float minimumPageScaleFactor = viewportWidth / (float) wideDocumentWidth;
    EXPECT_EQ(minimumPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
    EXPECT_EQ(minimumPageScaleFactor, webViewHelper.webView()->minimumPageScaleFactor());
}

TEST_F(WebFrameTest, WideViewportQuirkClobbersHeight)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-height-1000.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 600;
    int viewportHeight = 800;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->settings()->setViewportMetaLayoutSizeQuirk(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "viewport-height-1000.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(800, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
    EXPECT_EQ(1, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, LayoutSize320Quirk)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport/viewport-30.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 600;
    int viewportHeight = 800;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->settings()->setViewportMetaLayoutSizeQuirk(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "viewport/viewport-30.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(600, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());
    EXPECT_EQ(800, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
    EXPECT_EQ(1, webViewHelper.webView()->pageScaleFactor());

    // The magic number to snap to device-width is 320, so test that 321 is
    // respected.
    Document* document = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document();
    ViewportDescription description = document->viewportDescription();
    description.minWidth = Length(321, blink::Fixed);
    description.maxWidth = Length(321, blink::Fixed);
    document->setViewportDescription(description);
    webViewHelper.webView()->layout();
    EXPECT_EQ(321, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());

    description.minWidth = Length(320, blink::Fixed);
    description.maxWidth = Length(320, blink::Fixed);
    document->setViewportDescription(description);
    webViewHelper.webView()->layout();
    EXPECT_EQ(600, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());

    description = document->viewportDescription();
    description.maxHeight = Length(1000, blink::Fixed);
    document->setViewportDescription(description);
    webViewHelper.webView()->layout();
    EXPECT_EQ(1000, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());

    description.maxHeight = Length(320, blink::Fixed);
    document->setViewportDescription(description);
    webViewHelper.webView()->layout();
    EXPECT_EQ(800, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height());
}

TEST_F(WebFrameTest, ZeroValuesQuirk)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-zero-values.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setViewportMetaZeroValuesQuirk(true);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setViewportMetaLayoutSizeQuirk(true);
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "viewport-zero-values.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());
    EXPECT_EQ(1.0f, webViewHelper.webView()->pageScaleFactor());

    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->layout();
    EXPECT_EQ(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());
    EXPECT_EQ(1.0f, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, OverflowHiddenDisablesScrolling)
{
    registerMockedHttpURLLoad("body-overflow-hidden.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &client);
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "body-overflow-hidden.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    FrameView* view = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    EXPECT_FALSE(view->userInputScrollable(VerticalScrollbar));
}

TEST_F(WebFrameTest, IgnoreOverflowHiddenQuirk)
{
    registerMockedHttpURLLoad("body-overflow-hidden.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &client);
    webViewHelper.webView()->settings()->setIgnoreMainFrameOverflowHiddenQuirk(true);
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "body-overflow-hidden.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    FrameView* view = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    EXPECT_TRUE(view->userInputScrollable(VerticalScrollbar));
}

TEST_F(WebFrameTest, NonZeroValuesNoQuirk)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-nonzero-values.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;
    float expectedPageScaleFactor = 0.5f;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setViewportMetaZeroValuesQuirk(true);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "viewport-nonzero-values.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(viewportWidth / expectedPageScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());
    EXPECT_EQ(expectedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());

    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->layout();
    EXPECT_EQ(viewportWidth / expectedPageScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width());
    EXPECT_EQ(expectedPageScaleFactor, webViewHelper.webView()->pageScaleFactor());
}

TEST_F(WebFrameTest, setPageScaleFactorDoesNotLayout)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    // Small viewport to ensure there are always scrollbars.
    int viewportWidth = 64;
    int viewportHeight = 48;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    int prevLayoutCount = webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutCount();
    webViewHelper.webViewImpl()->setPageScaleFactor(3);
    EXPECT_FALSE(webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->needsLayout());
    EXPECT_EQ(prevLayoutCount, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutCount());
}

TEST_F(WebFrameTest, setPageScaleFactorWithOverlayScrollbarsDoesNotLayout)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    int prevLayoutCount = webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutCount();
    webViewHelper.webViewImpl()->setPageScaleFactor(30);
    EXPECT_FALSE(webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->needsLayout());
    EXPECT_EQ(prevLayoutCount, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutCount());

}

TEST_F(WebFrameTest, pageScaleFactorWrittenToHistoryItem)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    webViewHelper.webView()->setPageScaleFactor(3);
    EXPECT_EQ(3, toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->loader().currentItem()->pageScaleFactor());
}

TEST_F(WebFrameTest, initialScaleWrittenToHistoryItem)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    int defaultFixedLayoutWidth = 980;
    float minimumPageScaleFactor = viewportWidth / (float) defaultFixedLayoutWidth;
    EXPECT_EQ(minimumPageScaleFactor, toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->loader().currentItem()->pageScaleFactor());
}

TEST_F(WebFrameTest, pageScaleFactorShrinksViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("large-div.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    // Small viewport to ensure there are always scrollbars.
    int viewportWidth = 64;
    int viewportHeight = 48;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "large-div.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    FrameView* view = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    int viewportWidthMinusScrollbar = viewportWidth - (view->verticalScrollbar()->isOverlayScrollbar() ? 0 : 15);
    int viewportHeightMinusScrollbar = viewportHeight - (view->horizontalScrollbar()->isOverlayScrollbar() ? 0 : 15);

    webViewHelper.webView()->setPageScaleFactor(2);

    IntSize unscaledSize = view->unscaledVisibleContentSize(IncludeScrollbars);
    EXPECT_EQ(viewportWidth, unscaledSize.width());
    EXPECT_EQ(viewportHeight, unscaledSize.height());

    IntSize unscaledSizeMinusScrollbar = view->unscaledVisibleContentSize(ExcludeScrollbars);
    EXPECT_EQ(viewportWidthMinusScrollbar, unscaledSizeMinusScrollbar.width());
    EXPECT_EQ(viewportHeightMinusScrollbar, unscaledSizeMinusScrollbar.height());

    IntSize scaledSize = view->visibleContentRect().size();
    EXPECT_EQ(ceil(viewportWidthMinusScrollbar / 2.0), scaledSize.width());
    EXPECT_EQ(ceil(viewportHeightMinusScrollbar / 2.0), scaledSize.height());
}

TEST_F(WebFrameTest, pageScaleFactorDoesNotApplyCssTransform)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    webViewHelper.webView()->setPageScaleFactor(2);

    EXPECT_EQ(980, toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->contentRenderer()->unscaledDocumentRect().width());
    EXPECT_EQ(980, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->contentsSize().width());
}

TEST_F(WebFrameTest, targetDensityDpiHigh)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-target-densitydpi-high.html");

    FixedLayoutTestWebViewClient client;
    // high-dpi = 240
    float targetDpi = 240.0f;
    float deviceScaleFactors[] = { 1.0f, 4.0f / 3.0f, 2.0f };
    int viewportWidth = 640;
    int viewportHeight = 480;

    for (size_t i = 0; i < ARRAY_SIZE(deviceScaleFactors); ++i) {
        float deviceScaleFactor = deviceScaleFactors[i];
        float deviceDpi = deviceScaleFactor * 160.0f;
        client.m_screenInfo.deviceScaleFactor = deviceScaleFactor;

        FrameTestHelpers::WebViewHelper webViewHelper;
        webViewHelper.initializeAndLoad(m_baseURL + "viewport-target-densitydpi-high.html", true, 0, &client, enableViewportSettings);
        webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
        webViewHelper.webView()->settings()->setSupportDeprecatedTargetDensityDPI(true);
        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

        // We need to account for the fact that logical pixels are unconditionally multiplied by deviceScaleFactor to produce
        // physical pixels.
        float densityDpiScaleRatio = deviceScaleFactor * targetDpi / deviceDpi;
        EXPECT_NEAR(viewportWidth * densityDpiScaleRatio, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
        EXPECT_NEAR(viewportHeight * densityDpiScaleRatio, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
        EXPECT_NEAR(1.0f / densityDpiScaleRatio, webViewHelper.webView()->pageScaleFactor(), 0.01f);
    }
}

TEST_F(WebFrameTest, targetDensityDpiDevice)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-target-densitydpi-device.html");

    float deviceScaleFactors[] = { 1.0f, 4.0f / 3.0f, 2.0f };

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    for (size_t i = 0; i < ARRAY_SIZE(deviceScaleFactors); ++i) {
        client.m_screenInfo.deviceScaleFactor = deviceScaleFactors[i];

        FrameTestHelpers::WebViewHelper webViewHelper;
        webViewHelper.initializeAndLoad(m_baseURL + "viewport-target-densitydpi-device.html", true, 0, &client, enableViewportSettings);
        webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
        webViewHelper.webView()->settings()->setSupportDeprecatedTargetDensityDPI(true);
        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

        EXPECT_NEAR(viewportWidth * client.m_screenInfo.deviceScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
        EXPECT_NEAR(viewportHeight * client.m_screenInfo.deviceScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
        EXPECT_NEAR(1.0f / client.m_screenInfo.deviceScaleFactor, webViewHelper.webView()->pageScaleFactor(), 0.01f);
    }
}

TEST_F(WebFrameTest, targetDensityDpiDeviceAndFixedWidth)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-target-densitydpi-device-and-fixed-width.html");

    float deviceScaleFactors[] = { 1.0f, 4.0f / 3.0f, 2.0f };

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    for (size_t i = 0; i < ARRAY_SIZE(deviceScaleFactors); ++i) {
        client.m_screenInfo.deviceScaleFactor = deviceScaleFactors[i];

        FrameTestHelpers::WebViewHelper webViewHelper;
        webViewHelper.initializeAndLoad(m_baseURL + "viewport-target-densitydpi-device-and-fixed-width.html", true, 0, &client, enableViewportSettings);
        webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
        webViewHelper.webView()->settings()->setSupportDeprecatedTargetDensityDPI(true);
        webViewHelper.webView()->settings()->setUseWideViewport(true);
        webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

        EXPECT_NEAR(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
        EXPECT_NEAR(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
        EXPECT_NEAR(1.0f, webViewHelper.webView()->pageScaleFactor(), 0.01f);
    }
}

TEST_F(WebFrameTest, NoWideViewportAndScaleLessThanOne)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-initial-scale-less-than-1.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1.33f;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-initial-scale-less-than-1.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setSupportDeprecatedTargetDensityDPI(true);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_NEAR(viewportWidth * client.m_screenInfo.deviceScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
    EXPECT_NEAR(viewportHeight * client.m_screenInfo.deviceScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
    EXPECT_NEAR(1.0f / client.m_screenInfo.deviceScaleFactor, webViewHelper.webView()->pageScaleFactor(), 0.01f);
}

TEST_F(WebFrameTest, NoWideViewportAndScaleLessThanOneWithDeviceWidth)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-initial-scale-less-than-1-device-width.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1.33f;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-initial-scale-less-than-1-device-width.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setSupportDeprecatedTargetDensityDPI(true);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    const float pageZoom = 0.25f;
    EXPECT_NEAR(viewportWidth * client.m_screenInfo.deviceScaleFactor / pageZoom, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
    EXPECT_NEAR(viewportHeight * client.m_screenInfo.deviceScaleFactor / pageZoom, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
    EXPECT_NEAR(1.0f / client.m_screenInfo.deviceScaleFactor, webViewHelper.webView()->pageScaleFactor(), 0.01f);
}

TEST_F(WebFrameTest, NoWideViewportAndNoViewportWithInitialPageScaleOverride)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("large-div.html");

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;
    float enforcedPageScaleFactor = 5.0f;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "large-div.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->setInitialPageScaleOverride(enforcedPageScaleFactor);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_NEAR(viewportWidth / enforcedPageScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
    EXPECT_NEAR(viewportHeight / enforcedPageScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
    EXPECT_NEAR(enforcedPageScaleFactor, webViewHelper.webView()->pageScaleFactor(), 0.01f);
}

TEST_F(WebFrameTest, NoUserScalableQuirkIgnoresViewportScale)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-initial-scale-and-user-scalable-no.html");

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-initial-scale-and-user-scalable-no.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setViewportMetaNonUserScalableQuirk(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_NEAR(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
    EXPECT_NEAR(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
    EXPECT_NEAR(1.0f, webViewHelper.webView()->pageScaleFactor(), 0.01f);
}

TEST_F(WebFrameTest, NoUserScalableQuirkIgnoresViewportScaleForNonWideViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-initial-scale-and-user-scalable-no.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1.33f;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-initial-scale-and-user-scalable-no.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setSupportDeprecatedTargetDensityDPI(true);
    webViewHelper.webView()->settings()->setViewportMetaNonUserScalableQuirk(true);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    EXPECT_NEAR(viewportWidth * client.m_screenInfo.deviceScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
    EXPECT_NEAR(viewportHeight * client.m_screenInfo.deviceScaleFactor, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
    EXPECT_NEAR(1.0f / client.m_screenInfo.deviceScaleFactor, webViewHelper.webView()->pageScaleFactor(), 0.01f);
}

TEST_F(WebFrameTest, NoUserScalableQuirkIgnoresViewportScaleForWideViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("viewport-2x-initial-scale-non-user-scalable.html");

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "viewport-2x-initial-scale-non-user-scalable.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setViewportMetaNonUserScalableQuirk(true);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_NEAR(viewportWidth, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().width(), 1.0f);
    EXPECT_NEAR(viewportHeight, webViewHelper.webViewImpl()->mainFrameImpl()->frameView()->layoutSize().height(), 1.0f);
    EXPECT_NEAR(1.0f, webViewHelper.webView()->pageScaleFactor(), 0.01f);
}

TEST_F(WebFrameTest, DesktopPageCanBeZoomedInWhenWideViewportIsTurnedOff)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("no_viewport_tag.html");

    FixedLayoutTestWebViewClient client;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "no_viewport_tag.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->settings()->setWideViewportQuirkEnabled(true);
    webViewHelper.webView()->settings()->setUseWideViewport(false);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_NEAR(1.0f, webViewHelper.webView()->pageScaleFactor(), 0.01f);
    EXPECT_NEAR(1.0f, webViewHelper.webView()->minimumPageScaleFactor(), 0.01f);
    EXPECT_NEAR(5.0f, webViewHelper.webView()->maximumPageScaleFactor(), 0.01f);
}

class WebFrameResizeTest : public WebFrameTest {
protected:

    static FloatSize computeRelativeOffset(const IntPoint& absoluteOffset, const LayoutRect& rect)
    {
        FloatSize relativeOffset = FloatPoint(absoluteOffset) - rect.location();
        relativeOffset.scale(1.f / rect.width(), 1.f / rect.height());
        return relativeOffset;
    }

    void testResizeYieldsCorrectScrollAndScale(const char* url,
                                               const float initialPageScaleFactor,
                                               const WebSize scrollOffset,
                                               const WebSize viewportSize,
                                               const bool shouldScaleRelativeToViewportWidth) {
        UseMockScrollbarSettings mockScrollbarSettings;
        registerMockedHttpURLLoad(url);

        const float aspectRatio = static_cast<float>(viewportSize.width) / viewportSize.height;

        FrameTestHelpers::WebViewHelper webViewHelper;
        webViewHelper.initializeAndLoad(m_baseURL + url, true, 0, 0, enableViewportSettings);

        // Origin scrollOffsets preserved under resize.
        {
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.width, viewportSize.height));
            webViewHelper.webViewImpl()->setPageScaleFactor(initialPageScaleFactor);
            ASSERT_EQ(viewportSize, webViewHelper.webViewImpl()->size());
            ASSERT_EQ(initialPageScaleFactor, webViewHelper.webViewImpl()->pageScaleFactor());
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.height, viewportSize.width));
            float expectedPageScaleFactor = initialPageScaleFactor * (shouldScaleRelativeToViewportWidth ? 1 / aspectRatio : 1);
            EXPECT_NEAR(expectedPageScaleFactor, webViewHelper.webViewImpl()->pageScaleFactor(), 0.05f);
            EXPECT_EQ(WebSize(), webViewHelper.webViewImpl()->mainFrame()->scrollOffset());
        }

        // Resizing just the height should not affect pageScaleFactor or scrollOffset.
        {
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.width, viewportSize.height));
            webViewHelper.webViewImpl()->setPageScaleFactor(initialPageScaleFactor);
            webViewHelper.webViewImpl()->setMainFrameScrollOffset(WebPoint(scrollOffset.width, scrollOffset.height));
            webViewHelper.webViewImpl()->layout();
            const WebSize expectedScrollOffset = webViewHelper.webViewImpl()->mainFrame()->scrollOffset();
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.width, viewportSize.height * 0.8f));
            EXPECT_EQ(initialPageScaleFactor, webViewHelper.webViewImpl()->pageScaleFactor());
            EXPECT_EQ(expectedScrollOffset, webViewHelper.webViewImpl()->mainFrame()->scrollOffset());
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.width, viewportSize.height * 0.8f));
            EXPECT_EQ(initialPageScaleFactor, webViewHelper.webViewImpl()->pageScaleFactor());
            EXPECT_EQ(expectedScrollOffset, webViewHelper.webViewImpl()->mainFrame()->scrollOffset());
        }

        // Generic resize preserves scrollOffset relative to anchor node located
        // the top center of the screen.
        {
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.height, viewportSize.width));
            float pageScaleFactor = webViewHelper.webViewImpl()->pageScaleFactor();
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.width, viewportSize.height));
            float expectedPageScaleFactor = pageScaleFactor * (shouldScaleRelativeToViewportWidth ? aspectRatio : 1);
            EXPECT_NEAR(expectedPageScaleFactor, webViewHelper.webViewImpl()->pageScaleFactor(), 0.05f);
            webViewHelper.webViewImpl()->mainFrame()->setScrollOffset(scrollOffset);

            IntPoint anchorPoint = IntPoint(scrollOffset) + IntPoint(viewportSize.width / 2, 0);
            RefPtrWillBeRawPtr<Node> anchorNode = webViewHelper.webViewImpl()->mainFrameImpl()->frame()->eventHandler().hitTestResultAtPoint(anchorPoint, HitTestRequest::ReadOnly | HitTestRequest::Active).innerNode();
            ASSERT(anchorNode);

            pageScaleFactor = webViewHelper.webViewImpl()->pageScaleFactor();
            const FloatSize preResizeRelativeOffset
                = computeRelativeOffset(anchorPoint, anchorNode->boundingBox());
            webViewHelper.webViewImpl()->resize(WebSize(viewportSize.height, viewportSize.width));
            IntPoint newAnchorPoint = IntPoint(webViewHelper.webViewImpl()->mainFrame()->scrollOffset()) + IntPoint(viewportSize.height / 2, 0);
            const FloatSize postResizeRelativeOffset
                = computeRelativeOffset(newAnchorPoint, anchorNode->boundingBox());
            EXPECT_NEAR(preResizeRelativeOffset.width(), postResizeRelativeOffset.width(), 0.15f);
            expectedPageScaleFactor = pageScaleFactor * (shouldScaleRelativeToViewportWidth ? 1 / aspectRatio : 1);
            EXPECT_NEAR(expectedPageScaleFactor, webViewHelper.webViewImpl()->pageScaleFactor(), 0.05f);
        }
    }
};

TEST_F(WebFrameResizeTest, ResizeYieldsCorrectScrollAndScaleForWidthEqualsDeviceWidth)
{
    // With width=device-width, pageScaleFactor is preserved across resizes as
    // long as the content adjusts according to the device-width.
    const char* url = "resize_scroll_mobile.html";
    const float initialPageScaleFactor = 1;
    const WebSize scrollOffset(0, 50);
    const WebSize viewportSize(120, 160);
    const bool shouldScaleRelativeToViewportWidth = true;

    testResizeYieldsCorrectScrollAndScale(
        url, initialPageScaleFactor, scrollOffset, viewportSize, shouldScaleRelativeToViewportWidth);
}

TEST_F(WebFrameResizeTest, ResizeYieldsCorrectScrollAndScaleForMinimumScale)
{
    // This tests a scenario where minimum-scale is set to 1.0, but some element
    // on the page is slightly larger than the portrait width, so our "natural"
    // minimum-scale would be lower. In that case, we should stick to 1.0 scale
    // on rotation and not do anything strange.
    const char* url = "resize_scroll_minimum_scale.html";
    const float initialPageScaleFactor = 1;
    const WebSize scrollOffset(0, 0);
    const WebSize viewportSize(240, 320);
    const bool shouldScaleRelativeToViewportWidth = false;

    testResizeYieldsCorrectScrollAndScale(
        url, initialPageScaleFactor, scrollOffset, viewportSize, shouldScaleRelativeToViewportWidth);
}

TEST_F(WebFrameResizeTest, ResizeYieldsCorrectScrollAndScaleForFixedWidth)
{
    // With a fixed width, pageScaleFactor scales by the relative change in viewport width.
    const char* url = "resize_scroll_fixed_width.html";
    const float initialPageScaleFactor = 2;
    const WebSize scrollOffset(0, 200);
    const WebSize viewportSize(240, 320);
    const bool shouldScaleRelativeToViewportWidth = true;

    testResizeYieldsCorrectScrollAndScale(
        url, initialPageScaleFactor, scrollOffset, viewportSize, shouldScaleRelativeToViewportWidth);
}

TEST_F(WebFrameResizeTest, ResizeYieldsCorrectScrollAndScaleForFixedLayout)
{
    // With a fixed layout, pageScaleFactor scales by the relative change in viewport width.
    const char* url = "resize_scroll_fixed_layout.html";
    const float initialPageScaleFactor = 2;
    const WebSize scrollOffset(200, 400);
    const WebSize viewportSize(320, 240);
    const bool shouldScaleRelativeToViewportWidth = true;

    testResizeYieldsCorrectScrollAndScale(
        url, initialPageScaleFactor, scrollOffset, viewportSize, shouldScaleRelativeToViewportWidth);
}

TEST_F(WebFrameTest, pageScaleFactorScalesPaintClip)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("large-div.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 50;
    int viewportHeight = 50;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "large-div.html", true, 0, &client);
    // FIXME: This test breaks if the viewport is enabled before loading the page due to the paint
    // calls below not working on composited layers. For some reason, enabling the viewport here
    // doesn't cause compositing
    webViewHelper.webView()->settings()->setViewportEnabled(true);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    // Set <1 page scale so that the clip rect should be larger than
    // the viewport size as passed into resize().
    webViewHelper.webView()->setPageScaleFactor(0.5);

    SkBitmap bitmap;
    bitmap.allocN32Pixels(200, 200);
    bitmap.eraseColor(0);
    SkCanvas canvas(bitmap);

    GraphicsContext context(&canvas);
    context.setRegionTrackingMode(GraphicsContext::RegionTrackingOpaque);

    EXPECT_RECT_EQ(IntRect(0, 0, 0, 0), context.opaqueRegion().asRect());

    FrameView* view = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    IntRect paintRect(0, 0, 200, 200);
    view->paint(&context, paintRect);

    // FIXME: This test broke in release builds when changing the FixedLayoutTestWebViewClient
    // to return a non-null layerTreeView, which is what all our shipping configurations do,
    // so this is just exposing an existing bug.
    // crbug.com/365812
#ifndef NDEBUG
    int viewportWidthMinusScrollbar = 50 - (view->verticalScrollbar()->isOverlayScrollbar() ? 0 : 15);
    int viewportHeightMinusScrollbar = 50 - (view->horizontalScrollbar()->isOverlayScrollbar() ? 0 : 15);
    IntRect clippedRect(0, 0, viewportWidthMinusScrollbar * 2, viewportHeightMinusScrollbar * 2);
    EXPECT_RECT_EQ(clippedRect, context.opaqueRegion().asRect());
#endif
}

TEST_F(WebFrameTest, pageScaleFactorUpdatesScrollbars)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed_layout.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed_layout.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    FrameView* view = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    EXPECT_EQ(view->scrollSize(HorizontalScrollbar), view->contentsSize().width() - view->visibleContentRect().width());
    EXPECT_EQ(view->scrollSize(VerticalScrollbar), view->contentsSize().height() - view->visibleContentRect().height());

    webViewHelper.webView()->setPageScaleFactor(10);

    EXPECT_EQ(view->scrollSize(HorizontalScrollbar), view->contentsSize().width() - view->visibleContentRect().width());
    EXPECT_EQ(view->scrollSize(VerticalScrollbar), view->contentsSize().height() - view->visibleContentRect().height());
}

TEST_F(WebFrameTest, CanOverrideScaleLimits)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    registerMockedHttpURLLoad("no_scale_for_you.html");

    FixedLayoutTestWebViewClient client;
    client.m_screenInfo.deviceScaleFactor = 1;
    int viewportWidth = 640;
    int viewportHeight = 480;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "no_scale_for_you.html", true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));

    EXPECT_EQ(2.0f, webViewHelper.webView()->minimumPageScaleFactor());
    EXPECT_EQ(2.0f, webViewHelper.webView()->maximumPageScaleFactor());

    webViewHelper.webView()->setIgnoreViewportTagScaleLimits(true);
    webViewHelper.webView()->layout();

    EXPECT_EQ(1.0f, webViewHelper.webView()->minimumPageScaleFactor());
    EXPECT_EQ(5.0f, webViewHelper.webView()->maximumPageScaleFactor());

    webViewHelper.webView()->setIgnoreViewportTagScaleLimits(false);
    webViewHelper.webView()->layout();

    EXPECT_EQ(2.0f, webViewHelper.webView()->minimumPageScaleFactor());
    EXPECT_EQ(2.0f, webViewHelper.webView()->maximumPageScaleFactor());
}

TEST_F(WebFrameTest, updateOverlayScrollbarLayers)
{
    UseMockScrollbarSettings mockScrollbarSettings;

    registerMockedHttpURLLoad("large-div.html");

    int viewWidth = 500;
    int viewHeight = 500;

    OwnPtr<FakeCompositingWebViewClient> fakeCompositingWebViewClient = adoptPtr(new FakeCompositingWebViewClient());
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, fakeCompositingWebViewClient.get(), &configueCompositingWebView);

    webViewHelper.webView()->setPageScaleFactorLimits(1, 1);
    webViewHelper.webView()->resize(WebSize(viewWidth, viewHeight));
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "large-div.html");

    FrameView* view = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    EXPECT_TRUE(view->renderView()->compositor()->layerForHorizontalScrollbar());
    EXPECT_TRUE(view->renderView()->compositor()->layerForVerticalScrollbar());

    webViewHelper.webView()->resize(WebSize(viewWidth * 10, viewHeight * 10));
    webViewHelper.webView()->layout();
    EXPECT_FALSE(view->renderView()->compositor()->layerForHorizontalScrollbar());
    EXPECT_FALSE(view->renderView()->compositor()->layerForVerticalScrollbar());
}

void setScaleAndScrollAndLayout(WebView* webView, WebPoint scroll, float scale)
{
    webView->setPageScaleFactor(scale);
    webView->setMainFrameScrollOffset(WebPoint(scroll.x, scroll.y));
    webView->layout();
}

void simulatePageScale(WebViewImpl* webViewImpl, float& scale)
{
    IntSize scrollDelta = webViewImpl->fakePageScaleAnimationTargetPositionForTesting() - webViewImpl->mainFrameImpl()->frameView()->scrollPosition();
    float scaleDelta = webViewImpl->fakePageScaleAnimationPageScaleForTesting() / webViewImpl->pageScaleFactor();
    webViewImpl->applyViewportDeltas(scrollDelta, scaleDelta, 0);
    scale = webViewImpl->pageScaleFactor();
}

void simulateMultiTargetZoom(WebViewImpl* webViewImpl, const WebRect& rect, float& scale)
{
    if (webViewImpl->zoomToMultipleTargetsRect(rect))
        simulatePageScale(webViewImpl, scale);
}

void simulateDoubleTap(WebViewImpl* webViewImpl, WebPoint& point, float& scale)
{
    webViewImpl->animateDoubleTapZoom(point);
    EXPECT_TRUE(webViewImpl->fakeDoubleTapAnimationPendingForTesting());
    simulatePageScale(webViewImpl, scale);
}

// =======

TEST_F(WebFrameTest, DivAutoZoomParamsTest_VirtualViewport)
{
    registerMockedHttpURLLoad("get_scale_for_auto_zoom_into_div_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_for_auto_zoom_into_div_test.html", false, 0, 0, configurePinchVirtualViewport);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactorLimits(0.01f, 4);
    webViewHelper.webView()->setPageScaleFactor(0.5f);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    WebRect wideDiv(200, 100, 400, 150);
    WebRect tallDiv(200, 300, 400, 800);
    WebRect doubleTapPointWide(wideDiv.x + 50, wideDiv.y + 50, touchPointPadding, touchPointPadding);
    WebRect doubleTapPointTall(tallDiv.x + 50, tallDiv.y + 50, touchPointPadding, touchPointPadding);
    WebRect wideBlockBounds;
    WebRect tallBlockBounds;
    float scale;
    WebPoint scroll;

    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;

    // Test double-tap zooming into wide div.
    wideBlockBounds = webViewHelper.webViewImpl()->computeBlockBounds(doubleTapPointWide, false);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(doubleTapPointWide.x, doubleTapPointWide.y), wideBlockBounds, touchPointPadding, doubleTapZoomAlreadyLegibleScale, scale, scroll);
    // The div should horizontally fill the screen (modulo margins), and
    // vertically centered (modulo integer rounding).
    EXPECT_NEAR(viewportWidth / (float) wideDiv.width, scale, 0.1);
    EXPECT_NEAR(wideDiv.x, scroll.x, 20);
    EXPECT_EQ(0, scroll.y);

    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), scroll, scale);

    // Test zoom out back to minimum scale.
    wideBlockBounds = webViewHelper.webViewImpl()->computeBlockBounds(doubleTapPointWide, false);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(doubleTapPointWide.x, doubleTapPointWide.y), wideBlockBounds, touchPointPadding, doubleTapZoomAlreadyLegibleScale, scale, scroll);

    scale = webViewHelper.webViewImpl()->minimumPageScaleFactor();
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), scale);

    // Test double-tap zooming into tall div.
    tallBlockBounds = webViewHelper.webViewImpl()->computeBlockBounds(doubleTapPointTall, false);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(doubleTapPointTall.x, doubleTapPointTall.y), tallBlockBounds, touchPointPadding, doubleTapZoomAlreadyLegibleScale, scale, scroll);
    // The div should start at the top left of the viewport.
    EXPECT_NEAR(viewportWidth / (float) tallDiv.width, scale, 0.1);
    EXPECT_NEAR(tallDiv.x, scroll.x, 20);
    EXPECT_NEAR(tallDiv.y, scroll.y, 20);

    // Test for Non-doubletap scaling
    // Test zooming into div.
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(250, 250), webViewHelper.webViewImpl()->computeBlockBounds(WebRect(250, 250, 10, 10), true), 0, doubleTapZoomAlreadyLegibleScale, scale, scroll);
    EXPECT_NEAR(viewportWidth / (float) wideDiv.width, scale, 0.1);
}

TEST_F(WebFrameTest, DivAutoZoomWideDivTest_VirtualViewport)
{
    registerMockedHttpURLLoad("get_wide_div_for_auto_zoom_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_wide_div_for_auto_zoom_test.html", false, 0, 0, configurePinchVirtualViewport);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(1.0f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(1.0f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;

    WebRect div(0, 100, viewportWidth, 150);
    WebPoint point(div.x + 50, div.y + 50);
    float scale;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);

    simulateDoubleTap(webViewHelper.webViewImpl(), point, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), point, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
}

TEST_F(WebFrameTest, DivAutoZoomVeryTallTest_VirtualViewport)
{
    // When a block is taller than the viewport and a zoom targets a lower part
    // of it, then we should keep the target point onscreen instead of snapping
    // back up the top of the block.
    registerMockedHttpURLLoad("very_tall_div.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "very_tall_div.html", true, 0, 0, configurePinchVirtualViewport);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(1.0f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(1.0f);
    webViewHelper.webView()->layout();

    WebRect div(200, 300, 400, 5000);
    WebPoint point(div.x + 50, div.y + 3000);
    float scale;
    WebPoint scroll;

    WebRect blockBounds = webViewHelper.webViewImpl()->computeBlockBounds(WebRect(point.x, point.y, 0, 0), true);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(point, blockBounds, 0, 1.0f, scale, scroll);
    EXPECT_EQ(scale, 1.0f);
    EXPECT_EQ(scroll.y, 2660);
}

TEST_F(WebFrameTest, DivAutoZoomMultipleDivsTest_VirtualViewport)
{
    registerMockedHttpURLLoad("get_multiple_divs_for_auto_zoom_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_multiple_divs_for_auto_zoom_test.html", false, 0, 0, configurePinchVirtualViewport);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(0.5f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    WebRect topDiv(200, 100, 200, 150);
    WebRect bottomDiv(200, 300, 200, 150);
    WebPoint topPoint(topDiv.x + 50, topDiv.y + 50);
    WebPoint bottomPoint(bottomDiv.x + 50, bottomDiv.y + 50);
    float scale;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);

    // Test double tap on two different divs
    // After first zoom, we should go back to minimum page scale with a second double tap.
    simulateDoubleTap(webViewHelper.webViewImpl(), topPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);

    // If the user pinch zooms after double tap, a second double tap should zoom back to the div.
    simulateDoubleTap(webViewHelper.webViewImpl(), topPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 0.6f, 0);
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);

    // If we didn't yet get an auto-zoom update and a second double-tap arrives, should go back to minimum scale.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    webViewHelper.webViewImpl()->animateDoubleTapZoom(topPoint);
    EXPECT_TRUE(webViewHelper.webViewImpl()->fakeDoubleTapAnimationPendingForTesting());
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
}

TEST_F(WebFrameTest, DivAutoZoomScaleBoundsTest_VirtualViewport)
{
    registerMockedHttpURLLoad("get_scale_bounds_check_for_auto_zoom_test.html");

    int viewportWidth = 320;
    int viewportHeight = 480;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_bounds_check_for_auto_zoom_test.html", false, 0, 0, configurePinchVirtualViewport);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setDeviceScaleFactor(1.5f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    WebRect div(200, 100, 200, 150);
    WebPoint doubleTapPoint(div.x + 50, div.y + 50);
    float scale;

    // Test double tap scale bounds.
    // minimumPageScale < doubleTapZoomAlreadyLegibleScale < 1
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->layout();
    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // 1 < minimumPageScale < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(1.1f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // minimumPageScale < 1 < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(0.95f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
}

TEST_F(WebFrameTest, DivAutoZoomScaleFontScaleFactorTest_VirtualViewport)
{
    registerMockedHttpURLLoad("get_scale_bounds_check_for_auto_zoom_test.html");

    int viewportWidth = 320;
    int viewportHeight = 480;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    float accessibilityFontScaleFactor = 1.13f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_bounds_check_for_auto_zoom_test.html", false, 0, 0, configurePinchVirtualViewport);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);
    webViewHelper.webViewImpl()->page()->settings().setTextAutosizingEnabled(true);
    webViewHelper.webViewImpl()->page()->settings().setAccessibilityFontScaleFactor(accessibilityFontScaleFactor);

    WebRect div(200, 100, 200, 150);
    WebPoint doubleTapPoint(div.x + 50, div.y + 50);
    float scale;

    // Test double tap scale bounds.
    // minimumPageScale < doubleTapZoomAlreadyLegibleScale < 1 < accessibilityFontScaleFactor
    float legibleScale = accessibilityFontScaleFactor;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->layout();
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // 1 < accessibilityFontScaleFactor < minimumPageScale < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(1.0f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // minimumPageScale < 1 < accessibilityFontScaleFactor < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(0.95f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // minimumPageScale < 1 < doubleTapZoomAlreadyLegibleScale < accessibilityFontScaleFactor
    webViewHelper.webView()->setPageScaleFactorLimits(0.9f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);
}

// FIXME(bokan): The following tests marked with _OldPinch test AutoZoom
// without the pinch virtual viewport mode enabled. As this becomes the default
// and the old path is deprecated, these tests can be removed; they've been
// cloned above to use the new virtual viewport path.

TEST_F(WebFrameTest, DivAutoZoomParamsTest_OldPinch)
{
    registerMockedHttpURLLoad("get_scale_for_auto_zoom_into_div_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_for_auto_zoom_into_div_test.html");
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactorLimits(0.01f, 4);
    webViewHelper.webView()->setPageScaleFactor(0.5f);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    WebRect wideDiv(200, 100, 400, 150);
    WebRect tallDiv(200, 300, 400, 800);
    WebRect doubleTapPointWide(wideDiv.x + 50, wideDiv.y + 50, touchPointPadding, touchPointPadding);
    WebRect doubleTapPointTall(tallDiv.x + 50, tallDiv.y + 50, touchPointPadding, touchPointPadding);
    WebRect wideBlockBounds;
    WebRect tallBlockBounds;
    float scale;
    WebPoint scroll;

    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;

    // Test double-tap zooming into wide div.
    wideBlockBounds = webViewHelper.webViewImpl()->computeBlockBounds(doubleTapPointWide, false);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(doubleTapPointWide.x, doubleTapPointWide.y), wideBlockBounds, touchPointPadding, doubleTapZoomAlreadyLegibleScale, scale, scroll);
    // The div should horizontally fill the screen (modulo margins), and
    // vertically centered (modulo integer rounding).
    EXPECT_NEAR(viewportWidth / (float) wideDiv.width, scale, 0.1);
    EXPECT_NEAR(wideDiv.x, scroll.x, 20);
    EXPECT_EQ(0, scroll.y);

    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), scroll, scale);

    // Test zoom out back to minimum scale.
    wideBlockBounds = webViewHelper.webViewImpl()->computeBlockBounds(doubleTapPointWide, false);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(doubleTapPointWide.x, doubleTapPointWide.y), wideBlockBounds, touchPointPadding, doubleTapZoomAlreadyLegibleScale, scale, scroll);

    scale = webViewHelper.webViewImpl()->minimumPageScaleFactor();
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), scale);

    // Test double-tap zooming into tall div.
    tallBlockBounds = webViewHelper.webViewImpl()->computeBlockBounds(doubleTapPointTall, false);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(doubleTapPointTall.x, doubleTapPointTall.y), tallBlockBounds, touchPointPadding, doubleTapZoomAlreadyLegibleScale, scale, scroll);
    // The div should start at the top left of the viewport.
    EXPECT_NEAR(viewportWidth / (float) tallDiv.width, scale, 0.1);
    EXPECT_NEAR(tallDiv.x, scroll.x, 20);
    EXPECT_NEAR(tallDiv.y, scroll.y, 20);

    // Test for Non-doubletap scaling
    // Test zooming into div.
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(WebPoint(250, 250), webViewHelper.webViewImpl()->computeBlockBounds(WebRect(250, 250, 10, 10), true), 0, doubleTapZoomAlreadyLegibleScale, scale, scroll);
    EXPECT_NEAR(viewportWidth / (float) wideDiv.width, scale, 0.1);
}

TEST_F(WebFrameTest, DivAutoZoomWideDivTest_OldPinch)
{
    registerMockedHttpURLLoad("get_wide_div_for_auto_zoom_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_wide_div_for_auto_zoom_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(1.0f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(1.0f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;

    WebRect div(0, 100, viewportWidth, 150);
    WebPoint point(div.x + 50, div.y + 50);
    float scale;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);

    simulateDoubleTap(webViewHelper.webViewImpl(), point, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), point, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
}

TEST_F(WebFrameTest, DivAutoZoomVeryTallTest_OldPinch)
{
    // When a block is taller than the viewport and a zoom targets a lower part
    // of it, then we should keep the target point onscreen instead of snapping
    // back up the top of the block.
    registerMockedHttpURLLoad("very_tall_div.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "very_tall_div.html", true, 0, 0, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(1.0f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(1.0f);
    webViewHelper.webView()->layout();

    WebRect div(200, 300, 400, 5000);
    WebPoint point(div.x + 50, div.y + 3000);
    float scale;
    WebPoint scroll;

    WebRect blockBounds = webViewHelper.webViewImpl()->computeBlockBounds(WebRect(point.x, point.y, 0, 0), true);
    webViewHelper.webViewImpl()->computeScaleAndScrollForBlockRect(point, blockBounds, 0, 1.0f, scale, scroll);
    EXPECT_EQ(scale, 1.0f);
    EXPECT_EQ(scroll.y, 2660);
}

TEST_F(WebFrameTest, DivAutoZoomMultipleDivsTest_OldPinch)
{
    registerMockedHttpURLLoad("get_multiple_divs_for_auto_zoom_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_multiple_divs_for_auto_zoom_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(0.5f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    WebRect topDiv(200, 100, 200, 150);
    WebRect bottomDiv(200, 300, 200, 150);
    WebPoint topPoint(topDiv.x + 50, topDiv.y + 50);
    WebPoint bottomPoint(bottomDiv.x + 50, bottomDiv.y + 50);
    float scale;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);

    // Test double tap on two different divs
    // After first zoom, we should go back to minimum page scale with a second double tap.
    simulateDoubleTap(webViewHelper.webViewImpl(), topPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);

    // If the user pinch zooms after double tap, a second double tap should zoom back to the div.
    simulateDoubleTap(webViewHelper.webViewImpl(), topPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 0.6f, 0);
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);

    // If we didn't yet get an auto-zoom update and a second double-tap arrives, should go back to minimum scale.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    webViewHelper.webViewImpl()->animateDoubleTapZoom(topPoint);
    EXPECT_TRUE(webViewHelper.webViewImpl()->fakeDoubleTapAnimationPendingForTesting());
    simulateDoubleTap(webViewHelper.webViewImpl(), bottomPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
}

TEST_F(WebFrameTest, DivAutoZoomScaleBoundsTest_OldPinch)
{
    registerMockedHttpURLLoad("get_scale_bounds_check_for_auto_zoom_test.html");

    int viewportWidth = 320;
    int viewportHeight = 480;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_bounds_check_for_auto_zoom_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setDeviceScaleFactor(1.5f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    WebRect div(200, 100, 200, 150);
    WebPoint doubleTapPoint(div.x + 50, div.y + 50);
    float scale;

    // Test double tap scale bounds.
    // minimumPageScale < doubleTapZoomAlreadyLegibleScale < 1
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->layout();
    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(1, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // 1 < minimumPageScale < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(1.1f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // minimumPageScale < 1 < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(0.95f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
}

TEST_F(WebFrameTest, DivAutoZoomScaleFontScaleFactorTest_OldPinch)
{
    registerMockedHttpURLLoad("get_scale_bounds_check_for_auto_zoom_test.html");

    int viewportWidth = 320;
    int viewportHeight = 480;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    float accessibilityFontScaleFactor = 1.13f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_bounds_check_for_auto_zoom_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);
    webViewHelper.webViewImpl()->page()->settings().setTextAutosizingEnabled(true);
    webViewHelper.webViewImpl()->page()->settings().setAccessibilityFontScaleFactor(accessibilityFontScaleFactor);

    WebRect div(200, 100, 200, 150);
    WebPoint doubleTapPoint(div.x + 50, div.y + 50);
    float scale;

    // Test double tap scale bounds.
    // minimumPageScale < doubleTapZoomAlreadyLegibleScale < 1 < accessibilityFontScaleFactor
    float legibleScale = accessibilityFontScaleFactor;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    float doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->layout();
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // 1 < accessibilityFontScaleFactor < minimumPageScale < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(1.0f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // minimumPageScale < 1 < accessibilityFontScaleFactor < doubleTapZoomAlreadyLegibleScale
    webViewHelper.webView()->setPageScaleFactorLimits(0.95f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(doubleTapZoomAlreadyLegibleScale, scale);

    // Zoom in to reset double_tap_zoom_in_effect flag.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.1f, 0);
    // minimumPageScale < 1 < doubleTapZoomAlreadyLegibleScale < accessibilityFontScaleFactor
    webViewHelper.webView()->setPageScaleFactorLimits(0.9f, 4);
    webViewHelper.webView()->layout();
    doubleTapZoomAlreadyLegibleScale = webViewHelper.webViewImpl()->minimumPageScaleFactor() * doubleTapZoomAlreadyLegibleRatio;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(webViewHelper.webViewImpl()->minimumPageScaleFactor(), scale);
    simulateDoubleTap(webViewHelper.webViewImpl(), doubleTapPoint, scale);
    EXPECT_FLOAT_EQ(legibleScale, scale);
}

// ================= End Old-Style Pinch tests to be removed ===================

TEST_F(WebFrameTest, DivMultipleTargetZoomMultipleDivsTest)
{
    registerMockedHttpURLLoad("get_multiple_divs_for_auto_zoom_test.html");

    const float deviceScaleFactor = 2.0f;
    int viewportWidth = 640 / deviceScaleFactor;
    int viewportHeight = 1280 / deviceScaleFactor;
    float doubleTapZoomAlreadyLegibleRatio = 1.2f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_multiple_divs_for_auto_zoom_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(0.5f, 4);
    webViewHelper.webView()->setDeviceScaleFactor(deviceScaleFactor);
    webViewHelper.webView()->setPageScaleFactor(0.5f);
    webViewHelper.webView()->layout();

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    WebRect viewportRect(0, 0, viewportWidth, viewportHeight);
    WebRect topDiv(200, 100, 200, 150);
    WebRect bottomDiv(200, 300, 200, 150);
    float scale;
    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), WebPoint(0, 0), (webViewHelper.webViewImpl()->minimumPageScaleFactor()) * (1 + doubleTapZoomAlreadyLegibleRatio) / 2);

    simulateMultiTargetZoom(webViewHelper.webViewImpl(), topDiv, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateMultiTargetZoom(webViewHelper.webViewImpl(), bottomDiv, scale);
    EXPECT_FLOAT_EQ(1, scale);
    simulateMultiTargetZoom(webViewHelper.webViewImpl(), viewportRect, scale);
    EXPECT_FLOAT_EQ(1, scale);
    webViewHelper.webViewImpl()->setPageScaleFactor(webViewHelper.webViewImpl()->minimumPageScaleFactor());
    simulateMultiTargetZoom(webViewHelper.webViewImpl(), topDiv, scale);
    EXPECT_FLOAT_EQ(1, scale);
}

TEST_F(WebFrameTest, DivScrollIntoEditableTest)
{
    registerMockedHttpURLLoad("get_scale_for_zoom_into_editable_test.html");

    int viewportWidth = 450;
    int viewportHeight = 300;
    float leftBoxRatio = 0.3f;
    int caretPadding = 10;
    float minReadableCaretHeight = 18.0f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_for_zoom_into_editable_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(1, 4);
    webViewHelper.webView()->layout();
    webViewHelper.webView()->setDeviceScaleFactor(1.5f);
    webViewHelper.webView()->settings()->setAutoZoomFocusedNodeToLegibleScale(true);

    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    WebRect editBoxWithText(200, 200, 250, 20);
    WebRect editBoxWithNoText(200, 250, 250, 20);

    // Test scrolling the focused node
    // The edit box is shorter and narrower than the viewport when legible.
    webViewHelper.webView()->advanceFocus(false);
    // Set the caret to the end of the input box.
    webViewHelper.webView()->mainFrame()->document().getElementById("EditBoxWithText").to<WebInputElement>().setSelectionRange(1000, 1000);
    setScaleAndScrollAndLayout(webViewHelper.webView(), WebPoint(0, 0), 1);
    WebRect rect, caret;
    webViewHelper.webViewImpl()->selectionBounds(caret, rect);

    float scale;
    IntPoint scroll;
    bool needAnimation;
    webViewHelper.webViewImpl()->computeScaleAndScrollForFocusedNode(webViewHelper.webViewImpl()->focusedElement(), scale, scroll, needAnimation);
    EXPECT_TRUE(needAnimation);
    // The edit box should be left aligned with a margin for possible label.
    int hScroll = editBoxWithText.x - leftBoxRatio * viewportWidth / scale;
    EXPECT_NEAR(hScroll, scroll.x(), 5);
    int vScroll = editBoxWithText.y - (viewportHeight / scale - editBoxWithText.height) / 2;
    EXPECT_NEAR(vScroll, scroll.y(), 1);
    EXPECT_NEAR(minReadableCaretHeight / caret.height, scale, 0.1);

    // The edit box is wider than the viewport when legible.
    viewportWidth = 200;
    viewportHeight = 150;
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    setScaleAndScrollAndLayout(webViewHelper.webView(), WebPoint(0, 0), 1);
    webViewHelper.webViewImpl()->selectionBounds(caret, rect);
    webViewHelper.webViewImpl()->computeScaleAndScrollForFocusedNode(webViewHelper.webViewImpl()->focusedElement(), scale, scroll, needAnimation);
    EXPECT_TRUE(needAnimation);
    // The caret should be right aligned since the caret would be offscreen when the edit box is left aligned.
    hScroll = caret.x + caret.width + caretPadding - viewportWidth / scale;
    EXPECT_NEAR(hScroll, scroll.x(), 1);
    EXPECT_NEAR(minReadableCaretHeight / caret.height, scale, 0.1);

    setScaleAndScrollAndLayout(webViewHelper.webView(), WebPoint(0, 0), 1);
    // Move focus to edit box with text.
    webViewHelper.webView()->advanceFocus(false);
    webViewHelper.webViewImpl()->selectionBounds(caret, rect);
    webViewHelper.webViewImpl()->computeScaleAndScrollForFocusedNode(webViewHelper.webViewImpl()->focusedElement(), scale, scroll, needAnimation);
    EXPECT_TRUE(needAnimation);
    // The edit box should be left aligned.
    hScroll = editBoxWithNoText.x;
    EXPECT_NEAR(hScroll, scroll.x(), 1);
    vScroll = editBoxWithNoText.y - (viewportHeight / scale - editBoxWithNoText.height) / 2;
    EXPECT_NEAR(vScroll, scroll.y(), 1);
    EXPECT_NEAR(minReadableCaretHeight / caret.height, scale, 0.1);

    setScaleAndScrollAndLayout(webViewHelper.webViewImpl(), scroll, scale);

    // Move focus back to the first edit box.
    webViewHelper.webView()->advanceFocus(true);
    webViewHelper.webViewImpl()->computeScaleAndScrollForFocusedNode(webViewHelper.webViewImpl()->focusedElement(), scale, scroll, needAnimation);
    // The position should have stayed the same since this box was already on screen with the right scale.
    EXPECT_FALSE(needAnimation);
}

TEST_F(WebFrameTest, DivScrollIntoEditablePreservePageScaleTest)
{
    registerMockedHttpURLLoad("get_scale_for_zoom_into_editable_test.html");

    const int viewportWidth = 450;
    const int viewportHeight = 300;
    const float minReadableCaretHeight = 18.0f;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "get_scale_for_zoom_into_editable_test.html");
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->setPageScaleFactorLimits(1, 4);
    webViewHelper.webView()->layout();
    webViewHelper.webView()->setDeviceScaleFactor(1.5f);
    webViewHelper.webView()->settings()->setAutoZoomFocusedNodeToLegibleScale(true);
    webViewHelper.webViewImpl()->enableFakePageScaleAnimationForTesting(true);

    const WebRect editBoxWithText(200, 200, 250, 20);

    webViewHelper.webView()->advanceFocus(false);
    // Set the caret to the begining of the input box.
    webViewHelper.webView()->mainFrame()->document().getElementById("EditBoxWithText").to<WebInputElement>().setSelectionRange(0, 0);
    setScaleAndScrollAndLayout(webViewHelper.webView(), WebPoint(0, 0), 1);
    WebRect rect, caret;
    webViewHelper.webViewImpl()->selectionBounds(caret, rect);

    // Set page scale twice larger then minimal readable scale
    float newScale = minReadableCaretHeight / caret.height * 2.0;
    setScaleAndScrollAndLayout(webViewHelper.webView(), WebPoint(0, 0), newScale);

    float scale;
    IntPoint scroll;
    bool needAnimation;
    webViewHelper.webViewImpl()->computeScaleAndScrollForFocusedNode(webViewHelper.webViewImpl()->focusedElement(), scale, scroll, needAnimation);
    EXPECT_TRUE(needAnimation);
    // Edit box and caret should be left alinged
    int hScroll = editBoxWithText.x;
    EXPECT_NEAR(hScroll, scroll.x(), 1);
    int vScroll = editBoxWithText.y - (viewportHeight / scale - editBoxWithText.height) / 2;
    EXPECT_NEAR(vScroll, scroll.y(), 1);
    // Page scale have to be unchanged
    EXPECT_EQ(newScale, scale);

    // Set page scale and scroll such that edit box will be under the screen
    newScale = 3.0;
    hScroll = 200;
    setScaleAndScrollAndLayout(webViewHelper.webView(), WebPoint(hScroll, 0), newScale);
    webViewHelper.webViewImpl()->computeScaleAndScrollForFocusedNode(webViewHelper.webViewImpl()->focusedElement(), scale, scroll, needAnimation);
    EXPECT_TRUE(needAnimation);
    // Horizontal scroll have to be the same
    EXPECT_NEAR(hScroll, scroll.x(), 1);
    vScroll = editBoxWithText.y - (viewportHeight / scale - editBoxWithText.height) / 2;
    EXPECT_NEAR(vScroll, scroll.y(), 1);
    // Page scale have to be unchanged
    EXPECT_EQ(newScale, scale);
}

class TestReloadDoesntRedirectWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    virtual WebNavigationPolicy decidePolicyForNavigation(const NavigationPolicyInfo& info) override
    {
        EXPECT_FALSE(info.isRedirect);
        return WebNavigationPolicyCurrentTab;
    }
};

TEST_F(WebFrameTest, ReloadDoesntSetRedirect)
{
    // Test for case in http://crbug.com/73104. Reloading a frame very quickly
    // would sometimes call decidePolicyForNavigation with isRedirect=true
    registerMockedHttpURLLoad("form.html");

    TestReloadDoesntRedirectWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "form.html", false, &webFrameClient);

    webViewHelper.webView()->mainFrame()->reload(true);
    // start another reload before request is delivered.
    FrameTestHelpers::reloadFrameIgnoringCache(webViewHelper.webView()->mainFrame());
}

class ReloadWithOverrideURLTask : public WebThread::Task {
public:
    ReloadWithOverrideURLTask(WebFrame* frame, const KURL& url, bool ignoreCache)
        : m_frame(frame), m_url(url), m_ignoreCache(ignoreCache)
    {
    }

    virtual void run() override
    {
        m_frame->reloadWithOverrideURL(m_url, m_ignoreCache);
    }

private:
    WebFrame* const m_frame;
    const KURL m_url;
    const bool m_ignoreCache;
};

TEST_F(WebFrameTest, ReloadWithOverrideURLPreservesState)
{
    const std::string firstURL = "find.html";
    const std::string secondURL = "form.html";
    const std::string thirdURL = "history.html";
    const float pageScaleFactor = 1.1684f;
    const int pageWidth = 640;
    const int pageHeight = 480;

    registerMockedHttpURLLoad(firstURL);
    registerMockedHttpURLLoad(secondURL);
    registerMockedHttpURLLoad(thirdURL);

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + firstURL, true);
    webViewHelper.webViewImpl()->resize(WebSize(pageWidth, pageHeight));
    webViewHelper.webViewImpl()->mainFrame()->setScrollOffset(WebSize(pageWidth / 4, pageHeight / 4));
    webViewHelper.webViewImpl()->setPageScaleFactor(pageScaleFactor);

    WebSize previousOffset = webViewHelper.webViewImpl()->mainFrame()->scrollOffset();
    float previousScale = webViewHelper.webViewImpl()->pageScaleFactor();

    // Reload the page using the cache.
    Platform::current()->currentThread()->postTask(
        new ReloadWithOverrideURLTask(webViewHelper.webViewImpl()->mainFrame(), toKURL(m_baseURL + secondURL), false));
    FrameTestHelpers::pumpPendingRequestsDoNotUse(webViewHelper.webViewImpl()->mainFrame());
    ASSERT_EQ(previousOffset, webViewHelper.webViewImpl()->mainFrame()->scrollOffset());
    ASSERT_EQ(previousScale, webViewHelper.webViewImpl()->pageScaleFactor());

    // Reload the page while ignoring the cache.
    Platform::current()->currentThread()->postTask(
        new ReloadWithOverrideURLTask(webViewHelper.webViewImpl()->mainFrame(), toKURL(m_baseURL + thirdURL), true));
    FrameTestHelpers::pumpPendingRequestsDoNotUse(webViewHelper.webViewImpl()->mainFrame());
    ASSERT_EQ(previousOffset, webViewHelper.webViewImpl()->mainFrame()->scrollOffset());
    ASSERT_EQ(previousScale, webViewHelper.webViewImpl()->pageScaleFactor());
}

TEST_F(WebFrameTest, ReloadWhileProvisional)
{
    // Test that reloading while the previous load is still pending does not cause the initial
    // request to get lost.
    registerMockedHttpURLLoad("fixed_layout.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize();
    WebURLRequest request;
    request.initialize();
    request.setURL(toKURL(m_baseURL + "fixed_layout.html"));
    webViewHelper.webView()->mainFrame()->loadRequest(request);
    // start reload before first request is delivered.
    FrameTestHelpers::reloadFrameIgnoringCache(webViewHelper.webView()->mainFrame());

    WebDataSource* dataSource = webViewHelper.webView()->mainFrame()->dataSource();
    ASSERT_TRUE(dataSource);
    EXPECT_EQ(toKURL(m_baseURL + "fixed_layout.html"), toKURL(dataSource->request().url().spec()));
}

TEST_F(WebFrameTest, AppendRedirects)
{
    const std::string firstURL = "about:blank";
    const std::string secondURL = "http://internal.test";

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(firstURL, true);

    WebDataSource* dataSource = webViewHelper.webView()->mainFrame()->dataSource();
    ASSERT_TRUE(dataSource);
    dataSource->appendRedirect(toKURL(secondURL));

    WebVector<WebURL> redirects;
    dataSource->redirectChain(redirects);
    ASSERT_EQ(2U, redirects.size());
    EXPECT_EQ(toKURL(firstURL), toKURL(redirects[0].spec().data()));
    EXPECT_EQ(toKURL(secondURL), toKURL(redirects[1].spec().data()));
}

TEST_F(WebFrameTest, IframeRedirect)
{
    registerMockedHttpURLLoad("iframe_redirect.html");
    registerMockedHttpURLLoad("visible_iframe.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "iframe_redirect.html", true);
    // Pump pending requests one more time. The test page loads script that navigates.
    FrameTestHelpers::pumpPendingRequestsDoNotUse(webViewHelper.webView()->mainFrame());

    WebFrame* iframe = webViewHelper.webView()->findFrameByName(WebString::fromUTF8("ifr"));
    ASSERT_TRUE(iframe);
    WebDataSource* iframeDataSource = iframe->dataSource();
    ASSERT_TRUE(iframeDataSource);
    WebVector<WebURL> redirects;
    iframeDataSource->redirectChain(redirects);
    ASSERT_EQ(2U, redirects.size());
    EXPECT_EQ(toKURL("about:blank"), toKURL(redirects[0].spec().data()));
    EXPECT_EQ(toKURL("http://internal.test/visible_iframe.html"), toKURL(redirects[1].spec().data()));
}

TEST_F(WebFrameTest, ClearFocusedNodeTest)
{
    registerMockedHttpURLLoad("iframe_clear_focused_node_test.html");
    registerMockedHttpURLLoad("autofocus_input_field_iframe.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "iframe_clear_focused_node_test.html", true);

    // Clear the focused node.
    webViewHelper.webView()->clearFocusedElement();

    // Now retrieve the FocusedNode and test it should be null.
    EXPECT_EQ(0, webViewHelper.webViewImpl()->focusedElement());
}

// Implementation of WebFrameClient that tracks the v8 contexts that are created
// and destroyed for verification.
class ContextLifetimeTestWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    struct Notification {
    public:
        Notification(WebLocalFrame* frame, v8::Handle<v8::Context> context, int worldId)
            : frame(frame)
            , context(context->GetIsolate(), context)
            , worldId(worldId)
        {
        }

        ~Notification()
        {
            context.Reset();
        }

        bool Equals(Notification* other)
        {
            return other && frame == other->frame && context == other->context && worldId == other->worldId;
        }

        WebLocalFrame* frame;
        v8::Persistent<v8::Context> context;
        int worldId;
    };

    virtual ~ContextLifetimeTestWebFrameClient()
    {
        reset();
    }

    void reset()
    {
        for (size_t i = 0; i < createNotifications.size(); ++i)
            delete createNotifications[i];

        for (size_t i = 0; i < releaseNotifications.size(); ++i)
            delete releaseNotifications[i];

        createNotifications.clear();
        releaseNotifications.clear();
    }

    std::vector<Notification*> createNotifications;
    std::vector<Notification*> releaseNotifications;

 private:
    virtual void didCreateScriptContext(WebLocalFrame* frame, v8::Handle<v8::Context> context, int extensionGroup, int worldId) override
    {
        createNotifications.push_back(new Notification(frame, context, worldId));
    }

    virtual void willReleaseScriptContext(WebLocalFrame* frame, v8::Handle<v8::Context> context, int worldId) override
    {
        releaseNotifications.push_back(new Notification(frame, context, worldId));
    }
};

// TODO(aa): Deflake this test.
TEST_F(WebFrameTest, FLAKY_ContextNotificationsLoadUnload)
{
    v8::HandleScope handleScope(v8::Isolate::GetCurrent());

    registerMockedHttpURLLoad("context_notifications_test.html");
    registerMockedHttpURLLoad("context_notifications_test_frame.html");

    // Load a frame with an iframe, make sure we get the right create notifications.
    ContextLifetimeTestWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "context_notifications_test.html", true, &webFrameClient);

    WebFrame* mainFrame = webViewHelper.webView()->mainFrame();
    WebFrame* childFrame = mainFrame->firstChild();

    ASSERT_EQ(2u, webFrameClient.createNotifications.size());
    EXPECT_EQ(0u, webFrameClient.releaseNotifications.size());

    ContextLifetimeTestWebFrameClient::Notification* firstCreateNotification = webFrameClient.createNotifications[0];
    ContextLifetimeTestWebFrameClient::Notification* secondCreateNotification = webFrameClient.createNotifications[1];

    EXPECT_EQ(mainFrame, firstCreateNotification->frame);
    EXPECT_EQ(mainFrame->mainWorldScriptContext(), firstCreateNotification->context);
    EXPECT_EQ(0, firstCreateNotification->worldId);

    EXPECT_EQ(childFrame, secondCreateNotification->frame);
    EXPECT_EQ(childFrame->mainWorldScriptContext(), secondCreateNotification->context);
    EXPECT_EQ(0, secondCreateNotification->worldId);

    // Close the view. We should get two release notifications that are exactly the same as the create ones, in reverse order.
    webViewHelper.reset();

    ASSERT_EQ(2u, webFrameClient.releaseNotifications.size());
    ContextLifetimeTestWebFrameClient::Notification* firstReleaseNotification = webFrameClient.releaseNotifications[0];
    ContextLifetimeTestWebFrameClient::Notification* secondReleaseNotification = webFrameClient.releaseNotifications[1];

    ASSERT_TRUE(firstCreateNotification->Equals(secondReleaseNotification));
    ASSERT_TRUE(secondCreateNotification->Equals(firstReleaseNotification));
}

TEST_F(WebFrameTest, ContextNotificationsReload)
{
    v8::HandleScope handleScope(v8::Isolate::GetCurrent());

    registerMockedHttpURLLoad("context_notifications_test.html");
    registerMockedHttpURLLoad("context_notifications_test_frame.html");

    ContextLifetimeTestWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "context_notifications_test.html", true, &webFrameClient);

    // Refresh, we should get two release notifications and two more create notifications.
    FrameTestHelpers::reloadFrame(webViewHelper.webView()->mainFrame());
    ASSERT_EQ(4u, webFrameClient.createNotifications.size());
    ASSERT_EQ(2u, webFrameClient.releaseNotifications.size());

    // The two release notifications we got should be exactly the same as the first two create notifications.
    for (size_t i = 0; i < webFrameClient.releaseNotifications.size(); ++i) {
      EXPECT_TRUE(webFrameClient.releaseNotifications[i]->Equals(
          webFrameClient.createNotifications[webFrameClient.createNotifications.size() - 3 - i]));
    }

    // The last two create notifications should be for the current frames and context.
    WebFrame* mainFrame = webViewHelper.webView()->mainFrame();
    WebFrame* childFrame = mainFrame->firstChild();
    ContextLifetimeTestWebFrameClient::Notification* firstRefreshNotification = webFrameClient.createNotifications[2];
    ContextLifetimeTestWebFrameClient::Notification* secondRefreshNotification = webFrameClient.createNotifications[3];

    EXPECT_EQ(mainFrame, firstRefreshNotification->frame);
    EXPECT_EQ(mainFrame->mainWorldScriptContext(), firstRefreshNotification->context);
    EXPECT_EQ(0, firstRefreshNotification->worldId);

    EXPECT_EQ(childFrame, secondRefreshNotification->frame);
    EXPECT_EQ(childFrame->mainWorldScriptContext(), secondRefreshNotification->context);
    EXPECT_EQ(0, secondRefreshNotification->worldId);
}

TEST_F(WebFrameTest, ContextNotificationsIsolatedWorlds)
{
    v8::Isolate* isolate = v8::Isolate::GetCurrent();
    v8::HandleScope handleScope(isolate);

    registerMockedHttpURLLoad("context_notifications_test.html");
    registerMockedHttpURLLoad("context_notifications_test_frame.html");

    ContextLifetimeTestWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "context_notifications_test.html", true, &webFrameClient);

    // Add an isolated world.
    webFrameClient.reset();

    int isolatedWorldId = 42;
    WebScriptSource scriptSource("hi!");
    int numSources = 1;
    int extensionGroup = 0;
    webViewHelper.webView()->mainFrame()->executeScriptInIsolatedWorld(isolatedWorldId, &scriptSource, numSources, extensionGroup);

    // We should now have a new create notification.
    ASSERT_EQ(1u, webFrameClient.createNotifications.size());
    ContextLifetimeTestWebFrameClient::Notification* notification = webFrameClient.createNotifications[0];
    ASSERT_EQ(isolatedWorldId, notification->worldId);
    ASSERT_EQ(webViewHelper.webView()->mainFrame(), notification->frame);

    // We don't have an API to enumarate isolated worlds for a frame, but we can at least assert that the context we got is *not* the main world's context.
    ASSERT_NE(webViewHelper.webView()->mainFrame()->mainWorldScriptContext(), v8::Local<v8::Context>::New(isolate, notification->context));

    webViewHelper.reset();

    // We should have gotten three release notifications (one for each of the frames, plus one for the isolated context).
    ASSERT_EQ(3u, webFrameClient.releaseNotifications.size());

    // And one of them should be exactly the same as the create notification for the isolated context.
    int matchCount = 0;
    for (size_t i = 0; i < webFrameClient.releaseNotifications.size(); ++i) {
      if (webFrameClient.releaseNotifications[i]->Equals(webFrameClient.createNotifications[0]))
        ++matchCount;
    }
    EXPECT_EQ(1, matchCount);
}

TEST_F(WebFrameTest, FindInPage)
{
    registerMockedHttpURLLoad("find.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find.html");
    WebFrame* frame = webViewHelper.webView()->mainFrame();
    const int findIdentifier = 12345;
    WebFindOptions options;

    // Find in a <div> element.
    EXPECT_TRUE(frame->find(findIdentifier, WebString::fromUTF8("bar1"), options, false, 0));
    frame->stopFinding(false);
    WebRange range = frame->selectionRange();
    EXPECT_EQ(5, range.startOffset());
    EXPECT_EQ(9, range.endOffset());
    EXPECT_TRUE(frame->document().focusedElement().isNull());

    // Find in an <input> value.
    EXPECT_TRUE(frame->find(findIdentifier, WebString::fromUTF8("bar2"), options, false, 0));
    // Confirm stopFinding(false) sets the selection on the found text.
    frame->stopFinding(false);
    range = frame->selectionRange();
    ASSERT_FALSE(range.isNull());
    EXPECT_EQ(5, range.startOffset());
    EXPECT_EQ(9, range.endOffset());
    EXPECT_EQ(WebString::fromUTF8("INPUT"), frame->document().focusedElement().tagName());

    // Find in a <textarea> content.
    EXPECT_TRUE(frame->find(findIdentifier, WebString::fromUTF8("bar3"), options, false, 0));
    // Confirm stopFinding(false) sets the selection on the found text.
    frame->stopFinding(false);
    range = frame->selectionRange();
    ASSERT_FALSE(range.isNull());
    EXPECT_EQ(5, range.startOffset());
    EXPECT_EQ(9, range.endOffset());
    EXPECT_EQ(WebString::fromUTF8("TEXTAREA"), frame->document().focusedElement().tagName());

    // Find in a contentEditable element.
    EXPECT_TRUE(frame->find(findIdentifier, WebString::fromUTF8("bar4"), options, false, 0));
    // Confirm stopFinding(false) sets the selection on the found text.
    frame->stopFinding(false);
    range = frame->selectionRange();
    ASSERT_FALSE(range.isNull());
    EXPECT_EQ(0, range.startOffset());
    EXPECT_EQ(4, range.endOffset());
    // "bar4" is surrounded by <span>, but the focusable node should be the parent <div>.
    EXPECT_EQ(WebString::fromUTF8("DIV"), frame->document().focusedElement().tagName());

    // Find in <select> content.
    EXPECT_FALSE(frame->find(findIdentifier, WebString::fromUTF8("bar5"), options, false, 0));
    // If there are any matches, stopFinding will set the selection on the found text.
    // However, we do not expect any matches, so check that the selection is null.
    frame->stopFinding(false);
    range = frame->selectionRange();
    ASSERT_TRUE(range.isNull());
}

TEST_F(WebFrameTest, GetContentAsPlainText)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true);
    // We set the size because it impacts line wrapping, which changes the
    // resulting text value.
    webViewHelper.webView()->resize(WebSize(640, 480));
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    // Generate a simple test case.
    const char simpleSource[] = "<div>Foo bar</div><div></div>baz";
    KURL testURL = toKURL("about:blank");
    FrameTestHelpers::loadHTMLString(frame, simpleSource, testURL);

    // Make sure it comes out OK.
    const std::string expected("Foo bar\nbaz");
    WebString text = frame->contentAsText(std::numeric_limits<size_t>::max());
    EXPECT_EQ(expected, text.utf8());

    // Try reading the same one with clipping of the text.
    const int length = 5;
    text = frame->contentAsText(length);
    EXPECT_EQ(expected.substr(0, length), text.utf8());

    // Now do a new test with a subframe.
    const char outerFrameSource[] = "Hello<iframe></iframe> world";
    FrameTestHelpers::loadHTMLString(frame, outerFrameSource, testURL);

    // Load something into the subframe.
    WebFrame* subframe = frame->firstChild();
    ASSERT_TRUE(subframe);
    FrameTestHelpers::loadHTMLString(subframe, "sub<p>text", testURL);

    text = frame->contentAsText(std::numeric_limits<size_t>::max());
    EXPECT_EQ("Hello world\n\nsub\ntext", text.utf8());

    // Get the frame text where the subframe separator falls on the boundary of
    // what we'll take. There used to be a crash in this case.
    text = frame->contentAsText(12);
    EXPECT_EQ("Hello world", text.utf8());
}

TEST_F(WebFrameTest, GetFullHtmlOfPage)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    // Generate a simple test case.
    const char simpleSource[] = "<p>Hello</p><p>World</p>";
    KURL testURL = toKURL("about:blank");
    FrameTestHelpers::loadHTMLString(frame, simpleSource, testURL);

    WebString text = frame->contentAsText(std::numeric_limits<size_t>::max());
    EXPECT_EQ("Hello\n\nWorld", text.utf8());

    const std::string html = frame->contentAsMarkup().utf8();

    // Load again with the output html.
    FrameTestHelpers::loadHTMLString(frame, html, testURL);

    EXPECT_EQ(html, frame->contentAsMarkup().utf8());

    text = frame->contentAsText(std::numeric_limits<size_t>::max());
    EXPECT_EQ("Hello\n\nWorld", text.utf8());

    // Test selection check
    EXPECT_FALSE(frame->hasSelection());
    frame->executeCommand(WebString::fromUTF8("SelectAll"));
    EXPECT_TRUE(frame->hasSelection());
    frame->executeCommand(WebString::fromUTF8("Unselect"));
    EXPECT_FALSE(frame->hasSelection());
    WebString selectionHtml = frame->selectionAsMarkup();
    EXPECT_TRUE(selectionHtml.isEmpty());
}

class TestExecuteScriptDuringDidCreateScriptContext : public FrameTestHelpers::TestWebFrameClient {
public:
    virtual void didCreateScriptContext(WebLocalFrame* frame, v8::Handle<v8::Context> context, int extensionGroup, int worldId) override
    {
        frame->executeScript(WebScriptSource("window.history = 'replaced';"));
    }
};

TEST_F(WebFrameTest, ExecuteScriptDuringDidCreateScriptContext)
{
    registerMockedHttpURLLoad("hello_world.html");

    TestExecuteScriptDuringDidCreateScriptContext webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "hello_world.html", true, &webFrameClient);

    FrameTestHelpers::reloadFrame(webViewHelper.webView()->mainFrame());
}

class FindUpdateWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    FindUpdateWebFrameClient()
        : m_findResultsAreReady(false)
        , m_count(-1)
    {
    }

    virtual void reportFindInPageMatchCount(int, int count, bool finalUpdate) override
    {
        m_count = count;
        if (finalUpdate)
            m_findResultsAreReady = true;
    }

    bool findResultsAreReady() const { return m_findResultsAreReady; }
    int count() const { return m_count; }

private:
    bool m_findResultsAreReady;
    int m_count;
};

// This fails on Mac https://bugs.webkit.org/show_bug.cgi?id=108574
// Also failing on Android: http://crbug.com/341314
#if OS(MACOSX) || OS(ANDROID)
TEST_F(WebFrameTest, DISABLED_FindInPageMatchRects)
#else
TEST_F(WebFrameTest, FindInPageMatchRects)
#endif
{
    registerMockedHttpURLLoad("find_in_page.html");
    registerMockedHttpURLLoad("find_in_page_frame.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find_in_page.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    // Note that the 'result 19' in the <select> element is not expected to produce a match.
    static const char* kFindString = "result";
    static const int kFindIdentifier = 12345;
    static const int kNumResults = 19;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    EXPECT_TRUE(mainFrame->find(kFindIdentifier, searchText, options, false, 0));

    mainFrame->resetMatchCount();

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        frame->scopeStringMatches(kFindIdentifier, searchText, options, true);

    runPendingTasks();
    EXPECT_TRUE(client.findResultsAreReady());

    WebVector<WebFloatRect> webMatchRects;
    mainFrame->findMatchRects(webMatchRects);
    ASSERT_EQ(webMatchRects.size(), static_cast<size_t>(kNumResults));
    int rectsVersion = mainFrame->findMatchMarkersVersion();

    for (int resultIndex = 0; resultIndex < kNumResults; ++resultIndex) {
        FloatRect resultRect = static_cast<FloatRect>(webMatchRects[resultIndex]);

        // Select the match by the center of its rect.
        EXPECT_EQ(mainFrame->selectNearestFindMatch(resultRect.center(), 0), resultIndex + 1);

        // Check that the find result ordering matches with our expectations.
        Range* result = mainFrame->activeMatchFrame()->activeMatch();
        ASSERT_TRUE(result);
        result->setEnd(result->endContainer(), result->endOffset() + 3);
        EXPECT_EQ(result->text(), String::format("%s %02d", kFindString, resultIndex));

        // Verify that the expected match rect also matches the currently active match.
        // Compare the enclosing rects to prevent precision issues caused by CSS transforms.
        FloatRect activeMatch = mainFrame->activeFindMatchRect();
        EXPECT_EQ(enclosingIntRect(activeMatch), enclosingIntRect(resultRect));

        // The rects version should not have changed.
        EXPECT_EQ(mainFrame->findMatchMarkersVersion(), rectsVersion);
    }

    // All results after the first two ones should be below between them in find-in-page coordinates.
    // This is because results 2 to 9 are inside an iframe located between results 0 and 1. This applies to the fixed div too.
    EXPECT_TRUE(webMatchRects[0].y < webMatchRects[1].y);
    for (int resultIndex = 2; resultIndex < kNumResults; ++resultIndex) {
        EXPECT_TRUE(webMatchRects[0].y < webMatchRects[resultIndex].y);
        EXPECT_TRUE(webMatchRects[1].y > webMatchRects[resultIndex].y);
    }

    // Result 3 should be below both 2 and 4. This is caused by the CSS transform in the containing div.
    // If the transform doesn't work then 3 will be between 2 and 4.
    EXPECT_TRUE(webMatchRects[3].y > webMatchRects[2].y);
    EXPECT_TRUE(webMatchRects[3].y > webMatchRects[4].y);

    // Results 6, 7, 8 and 9 should be one below the other in that same order.
    // If overflow:scroll is not properly handled then result 8 would be below result 9 or
    // result 7 above result 6 depending on the scroll.
    EXPECT_TRUE(webMatchRects[6].y < webMatchRects[7].y);
    EXPECT_TRUE(webMatchRects[7].y < webMatchRects[8].y);
    EXPECT_TRUE(webMatchRects[8].y < webMatchRects[9].y);

    // Results 11, 12, 13 and 14 should be between results 10 and 15, as they are inside the table.
    EXPECT_TRUE(webMatchRects[11].y > webMatchRects[10].y);
    EXPECT_TRUE(webMatchRects[12].y > webMatchRects[10].y);
    EXPECT_TRUE(webMatchRects[13].y > webMatchRects[10].y);
    EXPECT_TRUE(webMatchRects[14].y > webMatchRects[10].y);
    EXPECT_TRUE(webMatchRects[11].y < webMatchRects[15].y);
    EXPECT_TRUE(webMatchRects[12].y < webMatchRects[15].y);
    EXPECT_TRUE(webMatchRects[13].y < webMatchRects[15].y);
    EXPECT_TRUE(webMatchRects[14].y < webMatchRects[15].y);

    // Result 11 should be above 12, 13 and 14 as it's in the table header.
    EXPECT_TRUE(webMatchRects[11].y < webMatchRects[12].y);
    EXPECT_TRUE(webMatchRects[11].y < webMatchRects[13].y);
    EXPECT_TRUE(webMatchRects[11].y < webMatchRects[14].y);

    // Result 11 should also be right to 12, 13 and 14 because of the colspan.
    EXPECT_TRUE(webMatchRects[11].x > webMatchRects[12].x);
    EXPECT_TRUE(webMatchRects[11].x > webMatchRects[13].x);
    EXPECT_TRUE(webMatchRects[11].x > webMatchRects[14].x);

    // Result 12 should be left to results 11, 13 and 14 in the table layout.
    EXPECT_TRUE(webMatchRects[12].x < webMatchRects[11].x);
    EXPECT_TRUE(webMatchRects[12].x < webMatchRects[13].x);
    EXPECT_TRUE(webMatchRects[12].x < webMatchRects[14].x);

    // Results 13, 12 and 14 should be one above the other in that order because of the rowspan
    // and vertical-align: middle by default.
    EXPECT_TRUE(webMatchRects[13].y < webMatchRects[12].y);
    EXPECT_TRUE(webMatchRects[12].y < webMatchRects[14].y);

    // Result 16 should be below result 15.
    EXPECT_TRUE(webMatchRects[15].y > webMatchRects[14].y);

    // Result 18 should be normalized with respect to the position:relative div, and not it's
    // immediate containing div. Consequently, result 18 should be above result 17.
    EXPECT_TRUE(webMatchRects[17].y > webMatchRects[18].y);

    // Resizing should update the rects version.
    webViewHelper.webView()->resize(WebSize(800, 600));
    runPendingTasks();
    EXPECT_TRUE(mainFrame->findMatchMarkersVersion() != rectsVersion);
}

TEST_F(WebFrameTest, FindInPageSkipsHiddenFrames)
{
    registerMockedHttpURLLoad("find_in_hidden_frame.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find_in_hidden_frame.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    static const char* kFindString = "hello";
    static const int kFindIdentifier = 12345;
    static const int kNumResults = 1;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    EXPECT_TRUE(mainFrame->find(kFindIdentifier, searchText, options, false, 0));

    mainFrame->resetMatchCount();

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        frame->scopeStringMatches(kFindIdentifier, searchText, options, true);

    runPendingTasks();
    EXPECT_TRUE(client.findResultsAreReady());
    EXPECT_EQ(kNumResults, client.count());
}

TEST_F(WebFrameTest, FindOnDetachedFrame)
{
    registerMockedHttpURLLoad("find_in_page.html");
    registerMockedHttpURLLoad("find_in_page_frame.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find_in_page.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    static const char* kFindString = "result";
    static const int kFindIdentifier = 12345;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    RefPtrWillBeRawPtr<WebLocalFrameImpl> secondFrame = toWebLocalFrameImpl(mainFrame->traverseNext(false));
    RefPtrWillBeRawPtr<LocalFrame> holdSecondFrame(secondFrame->frame());

    // Detach the frame before finding.
    EXPECT_TRUE(mainFrame->document().getElementById("frame").remove());

    EXPECT_TRUE(mainFrame->find(kFindIdentifier, searchText, options, false, 0));
    EXPECT_FALSE(secondFrame->find(kFindIdentifier, searchText, options, false, 0));

    runPendingTasks();
    EXPECT_FALSE(client.findResultsAreReady());

    mainFrame->resetMatchCount();

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        frame->scopeStringMatches(kFindIdentifier, searchText, options, true);

    runPendingTasks();
    EXPECT_TRUE(client.findResultsAreReady());
}

TEST_F(WebFrameTest, FindDetachFrameBeforeScopeStrings)
{
    registerMockedHttpURLLoad("find_in_page.html");
    registerMockedHttpURLLoad("find_in_page_frame.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find_in_page.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    static const char* kFindString = "result";
    static const int kFindIdentifier = 12345;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    WebLocalFrameImpl* secondFrame = toWebLocalFrameImpl(mainFrame->traverseNext(false));
    RefPtrWillBeRawPtr<LocalFrame> holdSecondFrame(secondFrame->frame());

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        EXPECT_TRUE(frame->find(kFindIdentifier, searchText, options, false, 0));

    runPendingTasks();
    EXPECT_FALSE(client.findResultsAreReady());

    // Detach the frame between finding and scoping.
    EXPECT_TRUE(mainFrame->document().getElementById("frame").remove());

    mainFrame->resetMatchCount();

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        frame->scopeStringMatches(kFindIdentifier, searchText, options, true);

    runPendingTasks();
    EXPECT_TRUE(client.findResultsAreReady());
}

TEST_F(WebFrameTest, FindDetachFrameWhileScopingStrings)
{
    registerMockedHttpURLLoad("find_in_page.html");
    registerMockedHttpURLLoad("find_in_page_frame.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find_in_page.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    static const char* kFindString = "result";
    static const int kFindIdentifier = 12345;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    WebLocalFrameImpl* secondFrame = toWebLocalFrameImpl(mainFrame->traverseNext(false));
    RefPtrWillBeRawPtr<LocalFrame> holdSecondFrame(secondFrame->frame());

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        EXPECT_TRUE(frame->find(kFindIdentifier, searchText, options, false, 0));

    runPendingTasks();
    EXPECT_FALSE(client.findResultsAreReady());

    mainFrame->resetMatchCount();

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false))
        frame->scopeStringMatches(kFindIdentifier, searchText, options, true);

    // The first scopeStringMatches will have reset the state. Detach before it actually scopes.
    EXPECT_TRUE(mainFrame->document().getElementById("frame").remove());

    runPendingTasks();
    EXPECT_TRUE(client.findResultsAreReady());
}

TEST_F(WebFrameTest, ResetMatchCount)
{
    registerMockedHttpURLLoad("find_in_generated_frame.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find_in_generated_frame.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    static const char* kFindString = "result";
    static const int kFindIdentifier = 12345;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());

    // Check that child frame exists.
    EXPECT_TRUE(!!mainFrame->traverseNext(false));

    for (WebFrame* frame = mainFrame; frame; frame = frame->traverseNext(false)) {
        EXPECT_FALSE(frame->find(kFindIdentifier, searchText, options, false, 0));
    }

    runPendingTasks();
    EXPECT_FALSE(client.findResultsAreReady());

    mainFrame->resetMatchCount();
}

TEST_F(WebFrameTest, SetTickmarks)
{
    registerMockedHttpURLLoad("find.html");

    FindUpdateWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "find.html", true, &client);
    webViewHelper.webView()->resize(WebSize(640, 480));
    webViewHelper.webView()->layout();
    runPendingTasks();

    static const char* kFindString = "foo";
    static const int kFindIdentifier = 12345;

    WebFindOptions options;
    WebString searchText = WebString::fromUTF8(kFindString);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    EXPECT_TRUE(mainFrame->find(kFindIdentifier, searchText, options, false, 0));

    mainFrame->resetMatchCount();
    mainFrame->scopeStringMatches(kFindIdentifier, searchText, options, true);

    runPendingTasks();
    EXPECT_TRUE(client.findResultsAreReady());

    // Get the tickmarks for the original find request.
    FrameView* frameView = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    RefPtrWillBeRawPtr<Scrollbar> scrollbar = frameView->createScrollbar(HorizontalScrollbar);
    Vector<IntRect> originalTickmarks;
    scrollbar->getTickmarks(originalTickmarks);
    EXPECT_EQ(4u, originalTickmarks.size());

    // Override the tickmarks.
    Vector<IntRect> overridingTickmarksExpected;
    overridingTickmarksExpected.append(IntRect(0, 0, 100, 100));
    overridingTickmarksExpected.append(IntRect(0, 20, 100, 100));
    overridingTickmarksExpected.append(IntRect(0, 30, 100, 100));
    mainFrame->setTickmarks(overridingTickmarksExpected);

    // Check the tickmarks are overriden correctly.
    Vector<IntRect> overridingTickmarksActual;
    scrollbar->getTickmarks(overridingTickmarksActual);
    EXPECT_EQ(overridingTickmarksExpected, overridingTickmarksActual);

    // Reset the tickmark behavior.
    Vector<IntRect> resetTickmarks;
    mainFrame->setTickmarks(resetTickmarks);

    // Check that the original tickmarks are returned
    Vector<IntRect> originalTickmarksAfterReset;
    scrollbar->getTickmarks(originalTickmarksAfterReset);
    EXPECT_EQ(originalTickmarks, originalTickmarksAfterReset);
}

static WebPoint topLeft(const WebRect& rect)
{
    return WebPoint(rect.x, rect.y);
}

static WebPoint bottomRightMinusOne(const WebRect& rect)
{
    // FIXME: If we don't subtract 1 from the x- and y-coordinates of the
    // selection bounds, selectRange() will select the *next* element. That's
    // strictly correct, as hit-testing checks the pixel to the lower-right of
    // the input coordinate, but it's a wart on the API.
    return WebPoint(rect.x + rect.width - 1, rect.y + rect.height - 1);
}

static WebRect elementBounds(WebFrame* frame, const WebString& id)
{
    return frame->document().getElementById(id).boundsInViewportSpace();
}

static std::string selectionAsString(WebFrame* frame)
{
    return frame->selectionAsText().utf8();
}

TEST_F(WebFrameTest, SelectRange)
{
    WebFrame* frame;
    WebRect startWebRect;
    WebRect endWebRect;

    registerMockedHttpURLLoad("select_range_basic.html");
    registerMockedHttpURLLoad("select_range_scroll.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "select_range_basic.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();
    EXPECT_EQ("Some test text for testing.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    frame->executeCommand(WebString::fromUTF8("Unselect"));
    EXPECT_EQ("", selectionAsString(frame));
    frame->selectRange(topLeft(startWebRect), bottomRightMinusOne(endWebRect));
    EXPECT_EQ("Some test text for testing.", selectionAsString(frame));

    initializeTextSelectionWebView(m_baseURL + "select_range_scroll.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();
    EXPECT_EQ("Some offscreen test text for testing.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    frame->executeCommand(WebString::fromUTF8("Unselect"));
    EXPECT_EQ("", selectionAsString(frame));
    frame->selectRange(topLeft(startWebRect), bottomRightMinusOne(endWebRect));
    EXPECT_EQ("Some offscreen test text for testing.", selectionAsString(frame));
}

TEST_F(WebFrameTest, SelectRangeInIframe)
{
    WebFrame* frame;
    WebRect startWebRect;
    WebRect endWebRect;

    registerMockedHttpURLLoad("select_range_iframe.html");
    registerMockedHttpURLLoad("select_range_basic.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "select_range_iframe.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();
    WebFrame* subframe = frame->firstChild();
    EXPECT_EQ("Some test text for testing.", selectionAsString(subframe));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    subframe->executeCommand(WebString::fromUTF8("Unselect"));
    EXPECT_EQ("", selectionAsString(subframe));
    subframe->selectRange(topLeft(startWebRect), bottomRightMinusOne(endWebRect));
    EXPECT_EQ("Some test text for testing.", selectionAsString(subframe));
}

TEST_F(WebFrameTest, SelectRangeDivContentEditable)
{
    WebFrame* frame;
    WebRect startWebRect;
    WebRect endWebRect;

    registerMockedHttpURLLoad("select_range_div_editable.html");

    // Select the middle of an editable element, then try to extend the selection to the top of the document.
    // The selection range should be clipped to the bounds of the editable element.
    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "select_range_div_editable.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);

    frame->selectRange(bottomRightMinusOne(endWebRect), WebPoint(0, 0));
    EXPECT_EQ("16-char header. This text is initially selected.", selectionAsString(frame));

    // As above, but extending the selection to the bottom of the document.
    initializeTextSelectionWebView(m_baseURL + "select_range_div_editable.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();

    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    frame->selectRange(topLeft(startWebRect), bottomRightMinusOne(endWebRect));
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);

    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    frame->selectRange(topLeft(startWebRect), WebPoint(640, 480));
    EXPECT_EQ("This text is initially selected. 16-char footer.", selectionAsString(frame));
}

// positionForPoint returns the wrong values for contenteditable spans. See
// http://crbug.com/238334.
TEST_F(WebFrameTest, DISABLED_SelectRangeSpanContentEditable)
{
    WebFrame* frame;
    WebRect startWebRect;
    WebRect endWebRect;

    registerMockedHttpURLLoad("select_range_span_editable.html");

    // Select the middle of an editable element, then try to extend the selection to the top of the document.
    // The selection range should be clipped to the bounds of the editable element.
    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "select_range_span_editable.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);

    frame->selectRange(bottomRightMinusOne(endWebRect), WebPoint(0, 0));
    EXPECT_EQ("16-char header. This text is initially selected.", selectionAsString(frame));

    // As above, but extending the selection to the bottom of the document.
    initializeTextSelectionWebView(m_baseURL + "select_range_span_editable.html", &webViewHelper);
    frame = webViewHelper.webView()->mainFrame();

    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    frame->selectRange(topLeft(startWebRect), bottomRightMinusOne(endWebRect));
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);

    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);
    frame->selectRange(topLeft(startWebRect), WebPoint(640, 480));
    EXPECT_EQ("This text is initially selected. 16-char footer.", selectionAsString(frame));
}

TEST_F(WebFrameTest, SelectRangeCanMoveSelectionStart)
{
    registerMockedHttpURLLoad("text_selection.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "text_selection.html", &webViewHelper);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    // Select second span. We can move the start to include the first span.
    frame->executeScript(WebScriptSource("selectElement('header_2');"));
    EXPECT_EQ("Header 2.", selectionAsString(frame));
    frame->selectRange(bottomRightMinusOne(elementBounds(frame, "header_2")), topLeft(elementBounds(frame, "header_1")));
    EXPECT_EQ("Header 1. Header 2.", selectionAsString(frame));

    // We can move the start and end together.
    frame->executeScript(WebScriptSource("selectElement('header_1');"));
    EXPECT_EQ("Header 1.", selectionAsString(frame));
    frame->selectRange(bottomRightMinusOne(elementBounds(frame, "header_1")), bottomRightMinusOne(elementBounds(frame, "header_1")));
    EXPECT_EQ("", selectionAsString(frame));
    // Selection is a caret, not empty.
    EXPECT_FALSE(frame->selectionRange().isNull());

    // We can move the start across the end.
    frame->executeScript(WebScriptSource("selectElement('header_1');"));
    EXPECT_EQ("Header 1.", selectionAsString(frame));
    frame->selectRange(bottomRightMinusOne(elementBounds(frame, "header_1")), bottomRightMinusOne(elementBounds(frame, "header_2")));
    EXPECT_EQ(" Header 2.", selectionAsString(frame));

    // Can't extend the selection part-way into an editable element.
    frame->executeScript(WebScriptSource("selectElement('footer_2');"));
    EXPECT_EQ("Footer 2.", selectionAsString(frame));
    frame->selectRange(bottomRightMinusOne(elementBounds(frame, "footer_2")), topLeft(elementBounds(frame, "editable_2")));
    EXPECT_EQ(" [ Footer 1. Footer 2.", selectionAsString(frame));

    // Can extend the selection completely across editable elements.
    frame->executeScript(WebScriptSource("selectElement('footer_2');"));
    EXPECT_EQ("Footer 2.", selectionAsString(frame));
    frame->selectRange(bottomRightMinusOne(elementBounds(frame, "footer_2")), topLeft(elementBounds(frame, "header_2")));
    EXPECT_EQ("Header 2. ] [ Editable 1. Editable 2. ] [ Footer 1. Footer 2.", selectionAsString(frame));

    // If the selection is editable text, we can't extend it into non-editable text.
    frame->executeScript(WebScriptSource("selectElement('editable_2');"));
    EXPECT_EQ("Editable 2.", selectionAsString(frame));
    frame->selectRange(bottomRightMinusOne(elementBounds(frame, "editable_2")), topLeft(elementBounds(frame, "header_2")));
    // positionForPoint returns the wrong values for contenteditable spans. See
    // http://crbug.com/238334.
    // EXPECT_EQ("[ Editable 1. Editable 2.", selectionAsString(frame));
}

TEST_F(WebFrameTest, SelectRangeCanMoveSelectionEnd)
{
    registerMockedHttpURLLoad("text_selection.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "text_selection.html", &webViewHelper);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    // Select first span. We can move the end to include the second span.
    frame->executeScript(WebScriptSource("selectElement('header_1');"));
    EXPECT_EQ("Header 1.", selectionAsString(frame));
    frame->selectRange(topLeft(elementBounds(frame, "header_1")), bottomRightMinusOne(elementBounds(frame, "header_2")));
    EXPECT_EQ("Header 1. Header 2.", selectionAsString(frame));

    // We can move the start and end together.
    frame->executeScript(WebScriptSource("selectElement('header_2');"));
    EXPECT_EQ("Header 2.", selectionAsString(frame));
    frame->selectRange(topLeft(elementBounds(frame, "header_2")), topLeft(elementBounds(frame, "header_2")));
    EXPECT_EQ("", selectionAsString(frame));
    // Selection is a caret, not empty.
    EXPECT_FALSE(frame->selectionRange().isNull());

    // We can move the end across the start.
    frame->executeScript(WebScriptSource("selectElement('header_2');"));
    EXPECT_EQ("Header 2.", selectionAsString(frame));
    frame->selectRange(topLeft(elementBounds(frame, "header_2")), topLeft(elementBounds(frame, "header_1")));
    EXPECT_EQ("Header 1. ", selectionAsString(frame));

    // Can't extend the selection part-way into an editable element.
    frame->executeScript(WebScriptSource("selectElement('header_1');"));
    EXPECT_EQ("Header 1.", selectionAsString(frame));
    frame->selectRange(topLeft(elementBounds(frame, "header_1")), bottomRightMinusOne(elementBounds(frame, "editable_1")));
    EXPECT_EQ("Header 1. Header 2. ] ", selectionAsString(frame));

    // Can extend the selection completely across editable elements.
    frame->executeScript(WebScriptSource("selectElement('header_1');"));
    EXPECT_EQ("Header 1.", selectionAsString(frame));
    frame->selectRange(topLeft(elementBounds(frame, "header_1")), bottomRightMinusOne(elementBounds(frame, "footer_1")));
    EXPECT_EQ("Header 1. Header 2. ] [ Editable 1. Editable 2. ] [ Footer 1.", selectionAsString(frame));

    // If the selection is editable text, we can't extend it into non-editable text.
    frame->executeScript(WebScriptSource("selectElement('editable_1');"));
    EXPECT_EQ("Editable 1.", selectionAsString(frame));
    frame->selectRange(topLeft(elementBounds(frame, "editable_1")), bottomRightMinusOne(elementBounds(frame, "footer_1")));
    // positionForPoint returns the wrong values for contenteditable spans. See
    // http://crbug.com/238334.
    // EXPECT_EQ("Editable 1. Editable 2. ]", selectionAsString(frame));
}

TEST_F(WebFrameTest, MoveRangeSelectionExtent)
{
    WebLocalFrameImpl* frame;
    WebRect startWebRect;
    WebRect endWebRect;

    registerMockedHttpURLLoad("move_range_selection_extent.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "move_range_selection_extent.html", &webViewHelper);
    frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);

    frame->moveRangeSelectionExtent(WebPoint(640, 480));
    EXPECT_EQ("This text is initially selected. 16-char footer.", selectionAsString(frame));

    frame->moveRangeSelectionExtent(WebPoint(0, 0));
    EXPECT_EQ("16-char header. ", selectionAsString(frame));

    // Reset with swapped base and extent.
    frame->selectRange(topLeft(endWebRect), bottomRightMinusOne(startWebRect));
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));

    frame->moveRangeSelectionExtent(WebPoint(640, 480));
    EXPECT_EQ(" 16-char footer.", selectionAsString(frame));

    frame->moveRangeSelectionExtent(WebPoint(0, 0));
    EXPECT_EQ("16-char header. This text is initially selected.", selectionAsString(frame));

    frame->executeCommand(WebString::fromUTF8("Unselect"));
    EXPECT_EQ("", selectionAsString(frame));
}

TEST_F(WebFrameTest, MoveRangeSelectionExtentCannotCollapse)
{
    WebLocalFrameImpl* frame;
    WebRect startWebRect;
    WebRect endWebRect;

    registerMockedHttpURLLoad("move_range_selection_extent.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "move_range_selection_extent.html", &webViewHelper);
    frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
    webViewHelper.webView()->selectionBounds(startWebRect, endWebRect);

    frame->moveRangeSelectionExtent(bottomRightMinusOne(startWebRect));
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));

    // Reset with swapped base and extent.
    frame->selectRange(topLeft(endWebRect), bottomRightMinusOne(startWebRect));
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));

    frame->moveRangeSelectionExtent(bottomRightMinusOne(endWebRect));
    EXPECT_EQ("This text is initially selected.", selectionAsString(frame));
}

static int computeOffset(RenderObject* renderer, int x, int y)
{
    return VisiblePosition(renderer->positionForPoint(LayoutPoint(x, y))).deepEquivalent().computeOffsetInContainerNode();
}

// positionForPoint returns the wrong values for contenteditable spans. See
// http://crbug.com/238334.
TEST_F(WebFrameTest, DISABLED_PositionForPointTest)
{
    registerMockedHttpURLLoad("select_range_span_editable.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "select_range_span_editable.html", &webViewHelper);
    WebLocalFrameImpl* mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    RenderObject* renderer = mainFrame->frame()->selection().rootEditableElement()->renderer();
    EXPECT_EQ(0, computeOffset(renderer, -1, -1));
    EXPECT_EQ(64, computeOffset(renderer, 1000, 1000));

    registerMockedHttpURLLoad("select_range_div_editable.html");
    initializeTextSelectionWebView(m_baseURL + "select_range_div_editable.html", &webViewHelper);
    mainFrame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    renderer = mainFrame->frame()->selection().rootEditableElement()->renderer();
    EXPECT_EQ(0, computeOffset(renderer, -1, -1));
    EXPECT_EQ(64, computeOffset(renderer, 1000, 1000));
}

#if !OS(MACOSX) && !OS(LINUX)
TEST_F(WebFrameTest, SelectRangeStaysHorizontallyAlignedWhenMoved)
{
    registerMockedHttpURLLoad("move_caret.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "move_caret.html", &webViewHelper);
    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());

    WebRect initialStartRect;
    WebRect initialEndRect;
    WebRect startRect;
    WebRect endRect;

    frame->executeScript(WebScriptSource("selectRange();"));
    webViewHelper.webView()->selectionBounds(initialStartRect, initialEndRect);
    WebPoint movedStart(topLeft(initialStartRect));

    movedStart.y += 40;
    frame->selectRange(movedStart, bottomRightMinusOne(initialEndRect));
    webViewHelper.webView()->selectionBounds(startRect, endRect);
    EXPECT_EQ(startRect, initialStartRect);
    EXPECT_EQ(endRect, initialEndRect);

    movedStart.y -= 80;
    frame->selectRange(movedStart, bottomRightMinusOne(initialEndRect));
    webViewHelper.webView()->selectionBounds(startRect, endRect);
    EXPECT_EQ(startRect, initialStartRect);
    EXPECT_EQ(endRect, initialEndRect);

    WebPoint movedEnd(bottomRightMinusOne(initialEndRect));

    movedEnd.y += 40;
    frame->selectRange(topLeft(initialStartRect), movedEnd);
    webViewHelper.webView()->selectionBounds(startRect, endRect);
    EXPECT_EQ(startRect, initialStartRect);
    EXPECT_EQ(endRect, initialEndRect);

    movedEnd.y -= 80;
    frame->selectRange(topLeft(initialStartRect), movedEnd);
    webViewHelper.webView()->selectionBounds(startRect, endRect);
    EXPECT_EQ(startRect, initialStartRect);
    EXPECT_EQ(endRect, initialEndRect);
}

TEST_F(WebFrameTest, MoveCaretStaysHorizontallyAlignedWhenMoved)
{
    WebLocalFrameImpl* frame;
    registerMockedHttpURLLoad("move_caret.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    initializeTextSelectionWebView(m_baseURL + "move_caret.html", &webViewHelper);
    frame = (WebLocalFrameImpl*)webViewHelper.webView()->mainFrame();

    WebRect initialStartRect;
    WebRect initialEndRect;
    WebRect startRect;
    WebRect endRect;

    frame->executeScript(WebScriptSource("selectCaret();"));
    webViewHelper.webView()->selectionBounds(initialStartRect, initialEndRect);
    WebPoint moveTo(topLeft(initialStartRect));

    moveTo.y += 40;
    frame->moveCaretSelection(moveTo);
    webViewHelper.webView()->selectionBounds(startRect, endRect);
    EXPECT_EQ(startRect, initialStartRect);
    EXPECT_EQ(endRect, initialEndRect);

    moveTo.y -= 80;
    frame->moveCaretSelection(moveTo);
    webViewHelper.webView()->selectionBounds(startRect, endRect);
    EXPECT_EQ(startRect, initialStartRect);
    EXPECT_EQ(endRect, initialEndRect);
}
#endif

class CompositedSelectionBoundsTestLayerTreeView : public WebLayerTreeView {
public:
    CompositedSelectionBoundsTestLayerTreeView() : m_selectionCleared(false) { }
    virtual ~CompositedSelectionBoundsTestLayerTreeView() { }

    virtual void setSurfaceReady()  override { }
    virtual void setRootLayer(const WebLayer&)  override { }
    virtual void clearRootLayer()  override { }
    virtual void setViewportSize(const WebSize& deviceViewportSize)  override { }
    virtual WebSize deviceViewportSize() const  override { return WebSize(); }
    virtual void setDeviceScaleFactor(float) override { }
    virtual float deviceScaleFactor() const  override { return 1.f; }
    virtual void setBackgroundColor(WebColor)  override { }
    virtual void setHasTransparentBackground(bool)  override { }
    virtual void setVisible(bool)  override { }
    virtual void setPageScaleFactorAndLimits(float pageScaleFactor, float minimum, float maximum)  override { }
    virtual void startPageScaleAnimation(const WebPoint& destination, bool useAnchor, float newPageScale, double durationSec)  override { }
    virtual void setNeedsAnimate()  override { }
    virtual bool commitRequested() const  override { return false; }
    virtual void finishAllRendering()  override { }
    virtual void registerSelection(const WebSelectionBound& start, const WebSelectionBound& end) override
    {
        m_start = adoptPtr(new WebSelectionBound(start));
        m_end = adoptPtr(new WebSelectionBound(end));
    }
    virtual void clearSelection() override
    {
        m_selectionCleared = true;
        m_start.clear();
        m_end.clear();
    }

    bool getAndResetSelectionCleared()
    {
        bool selectionCleared  = m_selectionCleared;
        m_selectionCleared = false;
        return selectionCleared;
    }

    const WebSelectionBound* start() const { return m_start.get(); }
    const WebSelectionBound* end() const { return m_end.get(); }

private:
    bool m_selectionCleared;
    OwnPtr<WebSelectionBound> m_start;
    OwnPtr<WebSelectionBound> m_end;
};

class CompositedSelectionBoundsTestWebViewClient : public FrameTestHelpers::TestWebViewClient {
public:
    virtual ~CompositedSelectionBoundsTestWebViewClient() { }
    virtual WebLayerTreeView* layerTreeView() override { return &m_testLayerTreeView; }

    CompositedSelectionBoundsTestLayerTreeView& selectionLayerTreeView() { return m_testLayerTreeView; }

private:
    CompositedSelectionBoundsTestLayerTreeView m_testLayerTreeView;
};

class CompositedSelectionBoundsTest : public WebFrameTest {
protected:
    CompositedSelectionBoundsTest()
        : m_fakeSelectionLayerTreeView(m_fakeSelectionWebViewClient.selectionLayerTreeView())
    {
        blink::RuntimeEnabledFeatures::setCompositedSelectionUpdateEnabled(true);
        registerMockedHttpURLLoad("Ahem.ttf");

        m_webViewHelper.initialize(true, 0, &m_fakeSelectionWebViewClient);
        m_webViewHelper.webView()->settings()->setDefaultFontSize(12);
        m_webViewHelper.webView()->setPageScaleFactorLimits(1, 1);
        m_webViewHelper.webView()->resize(WebSize(640, 480));
    }

    void runTest(const char* testFile)
    {
        registerMockedHttpURLLoad(testFile);
        FrameTestHelpers::loadFrame(m_webViewHelper.webView()->mainFrame(), m_baseURL + testFile);
        m_webViewHelper.webView()->layout();

        const WebSelectionBound* selectStart = m_fakeSelectionLayerTreeView.start();
        const WebSelectionBound* selectEnd = m_fakeSelectionLayerTreeView.end();

        v8::HandleScope handleScope(v8::Isolate::GetCurrent());
        v8::Handle<v8::Value> result = m_webViewHelper.webView()->mainFrame()->toWebLocalFrame()->executeScriptAndReturnValueForTests(WebScriptSource("expectedResult"));
        if (result.IsEmpty() || (*result)->IsUndefined()) {
            EXPECT_FALSE(selectStart);
            EXPECT_FALSE(selectEnd);
            return;
        }

        ASSERT_TRUE(selectStart);
        ASSERT_TRUE(selectEnd);

        ASSERT_TRUE((*result)->IsArray());
        v8::Array& expectedResult = *v8::Array::Cast(*result);
        ASSERT_EQ(10u, expectedResult.Length());

        blink::Node* layerOwnerNodeForStart = blink::V8Node::toImplWithTypeCheck(v8::Isolate::GetCurrent(), expectedResult.Get(0));
        ASSERT_TRUE(layerOwnerNodeForStart);
        EXPECT_EQ(layerOwnerNodeForStart->renderer()->enclosingLayer()->enclosingLayerForPaintInvalidation()->graphicsLayerBacking()->platformLayer()->id(), selectStart->layerId);
        EXPECT_EQ(expectedResult.Get(1)->Int32Value(), selectStart->edgeTopInLayer.x);
        EXPECT_EQ(expectedResult.Get(2)->Int32Value(), selectStart->edgeTopInLayer.y);
        EXPECT_EQ(expectedResult.Get(3)->Int32Value(), selectStart->edgeBottomInLayer.x);
        EXPECT_EQ(expectedResult.Get(4)->Int32Value(), selectStart->edgeBottomInLayer.y);

        blink::Node* layerOwnerNodeForEnd = blink::V8Node::toImplWithTypeCheck(v8::Isolate::GetCurrent(), expectedResult.Get(5));
        ASSERT_TRUE(layerOwnerNodeForEnd);
        EXPECT_EQ(layerOwnerNodeForEnd->renderer()->enclosingLayer()->enclosingLayerForPaintInvalidation()->graphicsLayerBacking()->platformLayer()->id(), selectEnd->layerId);
        EXPECT_EQ(expectedResult.Get(6)->Int32Value(), selectEnd->edgeTopInLayer.x);
        EXPECT_EQ(expectedResult.Get(7)->Int32Value(), selectEnd->edgeTopInLayer.y);
        EXPECT_EQ(expectedResult.Get(8)->Int32Value(), selectEnd->edgeBottomInLayer.x);
        EXPECT_EQ(expectedResult.Get(9)->Int32Value(), selectEnd->edgeBottomInLayer.y);
    }

    void runTestWithMultipleFiles(const char* testFile, ...)
    {
        va_list auxFiles;
        va_start(auxFiles, testFile);
        while (const char* auxFile = va_arg(auxFiles, const char*))
            registerMockedHttpURLLoad(auxFile);
        va_end(auxFiles);

        runTest(testFile);
    }

    CompositedSelectionBoundsTestWebViewClient m_fakeSelectionWebViewClient;
    CompositedSelectionBoundsTestLayerTreeView& m_fakeSelectionLayerTreeView;
    FrameTestHelpers::WebViewHelper m_webViewHelper;
};

TEST_F(CompositedSelectionBoundsTest, None) { runTest("composited_selection_bounds_none.html"); }
TEST_F(CompositedSelectionBoundsTest, Basic) { runTest("composited_selection_bounds_basic.html"); }
TEST_F(CompositedSelectionBoundsTest, Transformed) { runTest("composited_selection_bounds_transformed.html"); }
TEST_F(CompositedSelectionBoundsTest, SplitLayer) { runTest("composited_selection_bounds_split_layer.html"); }
TEST_F(CompositedSelectionBoundsTest, EmptyLayer) { runTest("composited_selection_bounds_empty_layer.html"); }
TEST_F(CompositedSelectionBoundsTest, Iframe) { runTestWithMultipleFiles("composited_selection_bounds_iframe.html", "composited_selection_bounds_basic.html", nullptr); }

TEST_F(WebFrameTest, CompositedSelectionBoundsCleared)
{
    RuntimeEnabledFeatures::setCompositedSelectionUpdateEnabled(true);

    registerMockedHttpURLLoad("select_range_basic.html");
    registerMockedHttpURLLoad("select_range_scroll.html");

    int viewWidth = 500;
    int viewHeight = 500;

    CompositedSelectionBoundsTestWebViewClient fakeSelectionWebViewClient;
    CompositedSelectionBoundsTestLayerTreeView& fakeSelectionLayerTreeView = fakeSelectionWebViewClient.selectionLayerTreeView();

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, &fakeSelectionWebViewClient);
    webViewHelper.webView()->settings()->setDefaultFontSize(12);
    webViewHelper.webView()->setPageScaleFactorLimits(1, 1);
    webViewHelper.webView()->resize(WebSize(viewWidth, viewHeight));
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "select_range_basic.html");

    // The frame starts with a non-empty selection.
    WebFrame* frame = webViewHelper.webView()->mainFrame();
    ASSERT_TRUE(frame->hasSelection());
    EXPECT_FALSE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());

    // The selection cleared notification should be triggered upon layout.
    frame->executeCommand(WebString::fromUTF8("Unselect"));
    ASSERT_FALSE(frame->hasSelection());
    EXPECT_FALSE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());
    webViewHelper.webView()->layout();
    EXPECT_TRUE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());

    frame->executeCommand(WebString::fromUTF8("SelectAll"));
    webViewHelper.webView()->layout();
    ASSERT_TRUE(frame->hasSelection());
    EXPECT_FALSE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "select_range_scroll.html");
    ASSERT_TRUE(frame->hasSelection());
    EXPECT_FALSE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());

    // Transitions between non-empty selections should not trigger a clearing.
    WebRect startWebRect;
    WebRect endWebRect;
    webViewHelper.webViewImpl()->selectionBounds(startWebRect, endWebRect);
    WebPoint movedEnd(bottomRightMinusOne(endWebRect));
    endWebRect.x -= 20;
    frame->selectRange(topLeft(startWebRect), movedEnd);
    webViewHelper.webView()->layout();
    ASSERT_TRUE(frame->hasSelection());
    EXPECT_FALSE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());

    frame = webViewHelper.webView()->mainFrame();
    frame->executeCommand(WebString::fromUTF8("Unselect"));
    webViewHelper.webView()->layout();
    ASSERT_FALSE(frame->hasSelection());
    EXPECT_TRUE(fakeSelectionLayerTreeView.getAndResetSelectionCleared());
}

class DisambiguationPopupTestWebViewClient : public FrameTestHelpers::TestWebViewClient {
public:
    virtual bool didTapMultipleTargets(const WebSize&, const WebRect&, const WebVector<WebRect>& targetRects) override
    {
        EXPECT_GE(targetRects.size(), 2u);
        m_triggered = true;
        return true;
    }

    bool triggered() const { return m_triggered; }
    void resetTriggered() { m_triggered = false; }
    bool m_triggered;
};

static WebGestureEvent fatTap(int x, int y)
{
    WebGestureEvent event;
    event.type = WebInputEvent::GestureTap;
    event.x = x;
    event.y = y;
    event.data.tap.width = 50;
    event.data.tap.height = 50;
    return event;
}

TEST_F(WebFrameTest, DisambiguationPopup)
{
    const std::string htmlFile = "disambiguation_popup.html";
    registerMockedHttpURLLoad(htmlFile);

    DisambiguationPopupTestWebViewClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + htmlFile, true, 0, &client);
    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(0, 0));
    EXPECT_FALSE(client.triggered());

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(200, 115));
    EXPECT_FALSE(client.triggered());

    for (int i = 0; i <= 46; i++) {
        client.resetTriggered();
        webViewHelper.webView()->handleInputEvent(fatTap(120, 230 + i * 5));

        int j = i % 10;
        if (j >= 7 && j <= 9)
            EXPECT_TRUE(client.triggered());
        else
            EXPECT_FALSE(client.triggered());
    }

    for (int i = 0; i <= 46; i++) {
        client.resetTriggered();
        webViewHelper.webView()->handleInputEvent(fatTap(10 + i * 5, 590));

        int j = i % 10;
        if (j >= 7 && j <= 9)
            EXPECT_TRUE(client.triggered());
        else
            EXPECT_FALSE(client.triggered());
    }
}

TEST_F(WebFrameTest, DisambiguationPopupNoContainer)
{
    registerMockedHttpURLLoad("disambiguation_popup_no_container.html");

    DisambiguationPopupTestWebViewClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "disambiguation_popup_no_container.html", true, 0, &client);
    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(50, 50));
    EXPECT_FALSE(client.triggered());
}

TEST_F(WebFrameTest, DisambiguationPopupMobileSite)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    const std::string htmlFile = "disambiguation_popup_mobile_site.html";
    registerMockedHttpURLLoad(htmlFile);

    DisambiguationPopupTestWebViewClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + htmlFile, true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(0, 0));
    EXPECT_FALSE(client.triggered());

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(200, 115));
    EXPECT_FALSE(client.triggered());

    for (int i = 0; i <= 46; i++) {
        client.resetTriggered();
        webViewHelper.webView()->handleInputEvent(fatTap(120, 230 + i * 5));
        EXPECT_FALSE(client.triggered());
    }

    for (int i = 0; i <= 46; i++) {
        client.resetTriggered();
        webViewHelper.webView()->handleInputEvent(fatTap(10 + i * 5, 590));
        EXPECT_FALSE(client.triggered());
    }
}

TEST_F(WebFrameTest, DisambiguationPopupViewportSite)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    const std::string htmlFile = "disambiguation_popup_viewport_site.html";
    registerMockedHttpURLLoad(htmlFile);

    DisambiguationPopupTestWebViewClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + htmlFile, true, 0, &client, enableViewportSettings);
    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(0, 0));
    EXPECT_FALSE(client.triggered());

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(200, 115));
    EXPECT_FALSE(client.triggered());

    for (int i = 0; i <= 46; i++) {
        client.resetTriggered();
        webViewHelper.webView()->handleInputEvent(fatTap(120, 230 + i * 5));
        EXPECT_FALSE(client.triggered());
    }

    for (int i = 0; i <= 46; i++) {
        client.resetTriggered();
        webViewHelper.webView()->handleInputEvent(fatTap(10 + i * 5, 590));
        EXPECT_FALSE(client.triggered());
    }
}

TEST_F(WebFrameTest, DisambiguationPopupPinchViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    const std::string htmlFile = "disambiguation_popup_200_by_800.html";
    registerMockedHttpURLLoad(htmlFile);

    DisambiguationPopupTestWebViewClient client;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + htmlFile, true, 0, &client, configurePinchVirtualViewport);

    WebViewImpl* webViewImpl = webViewHelper.webViewImpl();
    ASSERT_TRUE(webViewImpl);
    LocalFrame* frame = webViewImpl->mainFrameImpl()->frame();
    ASSERT_TRUE(frame);

    webViewHelper.webView()->resize(WebSize(100, 200));

    // Scroll main frame to the bottom of the document
    webViewImpl->setMainFrameScrollOffset(WebPoint(0, 400));
    EXPECT_POINT_EQ(IntPoint(0, 400), frame->view()->scrollPosition());

    webViewImpl->setPageScaleFactor(2.0);

    // Scroll pinch viewport to the top of the main frame.
    PinchViewport& pinchViewport = frame->page()->frameHost().pinchViewport();
    pinchViewport.setLocation(FloatPoint(0, 0));
    EXPECT_FLOAT_POINT_EQ(FloatPoint(0, 0), pinchViewport.location());

    // Tap at the top: there is nothing there.
    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(10, 60));
    EXPECT_FALSE(client.triggered());

    // Scroll pinch viewport to the bottom of the main frame.
    pinchViewport.setLocation(FloatPoint(0, 200));
    EXPECT_FLOAT_POINT_EQ(FloatPoint(0, 200), pinchViewport.location());

    // Now the tap with the same coordinates should hit two elements.
    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(10, 60));
    EXPECT_TRUE(client.triggered());
}

TEST_F(WebFrameTest, DisambiguationPopupBlacklist)
{
    const unsigned viewportWidth = 500;
    const unsigned viewportHeight = 1000;
    const unsigned divHeight = 100;
    const std::string htmlFile = "disambiguation_popup_blacklist.html";
    registerMockedHttpURLLoad(htmlFile);

    DisambiguationPopupTestWebViewClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + htmlFile, true, 0, &client);
    webViewHelper.webView()->resize(WebSize(viewportWidth, viewportHeight));
    webViewHelper.webView()->layout();

    // Click somewhere where the popup shouldn't appear.
    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(viewportWidth / 2, 0));
    EXPECT_FALSE(client.triggered());

    // Click directly in between two container divs with click handlers, with children that don't handle clicks.
    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(viewportWidth / 2, divHeight));
    EXPECT_TRUE(client.triggered());

    // The third div container should be blacklisted if you click on the link it contains.
    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(viewportWidth / 2, divHeight * 3.25));
    EXPECT_FALSE(client.triggered());
}

TEST_F(WebFrameTest, DisambiguationPopupPageScale)
{
    registerMockedHttpURLLoad("disambiguation_popup_page_scale.html");

    DisambiguationPopupTestWebViewClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "disambiguation_popup_page_scale.html", true, 0, &client);
    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(80, 80));
    EXPECT_TRUE(client.triggered());

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(230, 190));
    EXPECT_TRUE(client.triggered());

    webViewHelper.webView()->setPageScaleFactor(3.0f);
    webViewHelper.webView()->layout();

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(240, 240));
    EXPECT_TRUE(client.triggered());

    client.resetTriggered();
    webViewHelper.webView()->handleInputEvent(fatTap(690, 570));
    EXPECT_FALSE(client.triggered());
}

class TestSubstituteDataWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestSubstituteDataWebFrameClient()
        : m_commitCalled(false)
    {
    }

    virtual void didFailProvisionalLoad(WebLocalFrame* frame, const WebURLError& error)
    {
        frame->loadHTMLString("This should appear", toKURL("data:text/html,chromewebdata"), error.unreachableURL, true);
    }

    virtual void didCommitProvisionalLoad(WebLocalFrame* frame, const WebHistoryItem&, WebHistoryCommitType)
    {
        if (frame->dataSource()->response().url() != WebURL(URLTestHelpers::toKURL("about:blank")))
            m_commitCalled = true;
    }

    bool commitCalled() const { return m_commitCalled; }

private:
    bool m_commitCalled;
};

TEST_F(WebFrameTest, ReplaceNavigationAfterHistoryNavigation)
{
    TestSubstituteDataWebFrameClient webFrameClient;

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true, &webFrameClient);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    // Load a url as a history navigation that will return an error. TestSubstituteDataWebFrameClient
    // will start a SubstituteData load in response to the load failure, which should get fully committed.
    // Due to https://bugs.webkit.org/show_bug.cgi?id=91685, FrameLoader::didReceiveData() wasn't getting
    // called in this case, which resulted in the SubstituteData document not getting displayed.
    WebURLError error;
    error.reason = 1337;
    error.domain = "WebFrameTest";
    std::string errorURL = "http://0.0.0.0";
    WebURLResponse response;
    response.initialize();
    response.setURL(URLTestHelpers::toKURL(errorURL));
    response.setMIMEType("text/html");
    response.setHTTPStatusCode(500);
    WebHistoryItem errorHistoryItem;
    errorHistoryItem.initialize();
    errorHistoryItem.setURLString(WebString::fromUTF8(errorURL.c_str(), errorURL.length()));
    Platform::current()->unitTestSupport()->registerMockedErrorURL(URLTestHelpers::toKURL(errorURL), response, error);
    FrameTestHelpers::loadHistoryItem(frame, errorHistoryItem, WebHistoryDifferentDocumentLoad, WebURLRequest::UseProtocolCachePolicy);

    WebString text = frame->contentAsText(std::numeric_limits<size_t>::max());
    EXPECT_EQ("This should appear", text.utf8());
    EXPECT_TRUE(webFrameClient.commitCalled());
}

class TestWillInsertBodyWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestWillInsertBodyWebFrameClient() : m_numBodies(0), m_didLoad(false)
    {
    }

    virtual void didCommitProvisionalLoad(WebLocalFrame*, const WebHistoryItem&, WebHistoryCommitType) override
    {
        m_numBodies = 0;
        m_didLoad = true;
    }

    virtual void didCreateDocumentElement(WebLocalFrame*) override
    {
        EXPECT_EQ(0, m_numBodies);
    }

    virtual void willInsertBody(WebLocalFrame*) override
    {
        m_numBodies++;
    }

    int m_numBodies;
    bool m_didLoad;
};

TEST_F(WebFrameTest, HTMLDocument)
{
    registerMockedHttpURLLoad("clipped-body.html");

    TestWillInsertBodyWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "clipped-body.html", false, &webFrameClient);

    EXPECT_TRUE(webFrameClient.m_didLoad);
    EXPECT_EQ(1, webFrameClient.m_numBodies);
}

TEST_F(WebFrameTest, EmptyDocument)
{
    registerMockedHttpURLLoad("pageserializer/green_rectangle.svg");

    TestWillInsertBodyWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(false, &webFrameClient);

    EXPECT_FALSE(webFrameClient.m_didLoad);
    EXPECT_EQ(1, webFrameClient.m_numBodies); // The empty document that a new frame starts with triggers this.
}

TEST_F(WebFrameTest, MoveCaretSelectionTowardsWindowPointWithNoSelection)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    // This test passes if this doesn't crash.
    frame->moveCaretSelection(WebPoint(0, 0));
}

TEST_F(WebFrameTest, NavigateToSandboxedMarkup)
{
    FrameTestHelpers::TestWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad("about:blank", true, &webFrameClient);
    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());

    frame->document().setIsTransitionDocument();

    std::string markup("<div id='foo'></div><script>document.getElementById('foo').setAttribute('dir', 'rtl')</script>");
    frame->navigateToSandboxedMarkup(WebData(markup.data(), markup.length()));

    webFrameClient.waitForLoadToComplete();

    WebDocument document = webViewImpl->mainFrame()->document();
    WebElement transitionElement = document.getElementById("foo");
    // Check that the markup got navigated to successfully.
    EXPECT_FALSE(transitionElement.isNull());

    // Check that the inline script was not executed.
    EXPECT_FALSE(transitionElement.hasAttribute("dir"));
}

class SpellCheckClient : public WebSpellCheckClient {
public:
    explicit SpellCheckClient(uint32_t hash = 0) : m_numberOfTimesChecked(0), m_hash(hash) { }
    virtual ~SpellCheckClient() { }
    virtual void requestCheckingOfText(const WebString&, const WebVector<uint32_t>&, const WebVector<unsigned>&, WebTextCheckingCompletion* completion) override
    {
        ++m_numberOfTimesChecked;
        Vector<WebTextCheckingResult> results;
        const int misspellingStartOffset = 1;
        const int misspellingLength = 8;
        results.append(WebTextCheckingResult(WebTextDecorationTypeSpelling, misspellingStartOffset, misspellingLength, WebString(), m_hash));
        completion->didFinishCheckingText(results);
    }
    int numberOfTimesChecked() const { return m_numberOfTimesChecked; }
private:
    int m_numberOfTimesChecked;
    uint32_t m_hash;
};

TEST_F(WebFrameTest, ReplaceMisspelledRange)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");
    SpellCheckClient spellcheck;
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, "_wellcome_.");

    const int allTextBeginOffset = 0;
    const int allTextLength = 11;
    frame->selectRange(WebRange::fromDocumentRange(frame, allTextBeginOffset, allTextLength));
    RefPtrWillBeRawPtr<Range> selectionRange = frame->frame()->selection().toNormalizedRange();

    EXPECT_EQ(1, spellcheck.numberOfTimesChecked());
    EXPECT_EQ(1U, document->markers().markersInRange(selectionRange.get(), DocumentMarker::Spelling).size());

    frame->replaceMisspelledRange("welcome");
    EXPECT_EQ("_welcome_.", frame->contentAsText(std::numeric_limits<size_t>::max()).utf8());
}

TEST_F(WebFrameTest, RemoveSpellingMarkers)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");
    SpellCheckClient spellcheck;
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, "_wellcome_.");

    frame->removeSpellingMarkers();

    const int allTextBeginOffset = 0;
    const int allTextLength = 11;
    frame->selectRange(WebRange::fromDocumentRange(frame, allTextBeginOffset, allTextLength));
    RefPtrWillBeRawPtr<Range> selectionRange = frame->frame()->selection().toNormalizedRange();

    EXPECT_EQ(0U, document->markers().markersInRange(selectionRange.get(), DocumentMarker::Spelling).size());
}

TEST_F(WebFrameTest, RemoveSpellingMarkersUnderWords)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");
    SpellCheckClient spellcheck;
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    LocalFrame* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame())->frame();
    Document* document = frame->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, " wellcome ");

    WebVector<uint32_t> documentMarkers1;
    webViewHelper.webView()->spellingMarkers(&documentMarkers1);
    EXPECT_EQ(1U, documentMarkers1.size());

    Vector<String> words;
    words.append("wellcome");
    frame->removeSpellingMarkersUnderWords(words);

    WebVector<uint32_t> documentMarkers2;
    webViewHelper.webView()->spellingMarkers(&documentMarkers2);
    EXPECT_EQ(0U, documentMarkers2.size());
}

TEST_F(WebFrameTest, MarkerHashIdentifiers) {
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");

    static const uint32_t kHash = 42;
    SpellCheckClient spellcheck(kHash);
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, "wellcome.");

    WebVector<uint32_t> documentMarkers;
    webViewHelper.webView()->spellingMarkers(&documentMarkers);
    EXPECT_EQ(1U, documentMarkers.size());
    EXPECT_EQ(kHash, documentMarkers[0]);
}

class StubbornSpellCheckClient : public WebSpellCheckClient {
public:
    StubbornSpellCheckClient() : m_completion(0) { }
    virtual ~StubbornSpellCheckClient() { }

    virtual void requestCheckingOfText(
        const WebString&,
        const WebVector<uint32_t>&,
        const WebVector<unsigned>&,
        WebTextCheckingCompletion* completion) override
    {
        m_completion = completion;
    }

    void kickNoResults()
    {
        kick(-1, -1, WebTextDecorationTypeSpelling);
    }

    void kick()
    {
        kick(1, 8, WebTextDecorationTypeSpelling);
    }

    void kickGrammar()
    {
        kick(1, 8, WebTextDecorationTypeGrammar);
    }

    void kickInvisibleSpellcheck()
    {
        kick(1, 8, WebTextDecorationTypeInvisibleSpellcheck);
    }

private:
    void kick(int misspellingStartOffset, int misspellingLength, WebTextDecorationType type)
    {
        if (!m_completion)
            return;
        Vector<WebTextCheckingResult> results;
        if (misspellingStartOffset >= 0 && misspellingLength > 0)
            results.append(WebTextCheckingResult(type, misspellingStartOffset, misspellingLength));
        m_completion->didFinishCheckingText(results);
        m_completion = 0;
    }

    WebTextCheckingCompletion* m_completion;
};

TEST_F(WebFrameTest, SlowSpellcheckMarkerPosition)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");

    StubbornSpellCheckClient spellcheck;
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    WebInputElement webInputElement = frame->document().getElementById("data").to<WebInputElement>();
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, "wellcome ");
    webInputElement.setSelectionRange(0, 0);
    document->execCommand("InsertText", false, "he");

    spellcheck.kick();

    WebVector<uint32_t> documentMarkers;
    webViewHelper.webView()->spellingMarkers(&documentMarkers);
    EXPECT_EQ(0U, documentMarkers.size());
}

// This test verifies that cancelling spelling request does not cause a
// write-after-free when there's no spellcheck client set.
TEST_F(WebFrameTest, CancelSpellingRequestCrash)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");
    webViewHelper.webView()->setSpellCheckClient(0);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    frame->frame()->editor().replaceSelectionWithText("A", false, false);
    frame->frame()->spellChecker().cancelCheck();
}

TEST_F(WebFrameTest, SpellcheckResultErasesMarkers)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");

    StubbornSpellCheckClient spellcheck;
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    WebInputElement webInputElement = frame->document().getElementById("data").to<WebInputElement>();
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, "welcome ");
    document->markers().addMarker(rangeOfContents(element->toNode()).get(), DocumentMarker::Spelling);
    document->markers().addMarker(rangeOfContents(element->toNode()).get(), DocumentMarker::Grammar);
    document->markers().addMarker(rangeOfContents(element->toNode()).get(), DocumentMarker::InvisibleSpellcheck);
    EXPECT_EQ(3U, document->markers().markers().size());

    spellcheck.kickNoResults();
    EXPECT_EQ(0U, document->markers().markers().size());
}

TEST_F(WebFrameTest, SpellcheckResultsSavedInDocument)
{
    registerMockedHttpURLLoad("spell.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "spell.html");

    StubbornSpellCheckClient spellcheck;
    webViewHelper.webView()->setSpellCheckClient(&spellcheck);

    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame());
    WebInputElement webInputElement = frame->document().getElementById("data").to<WebInputElement>();
    Document* document = frame->frame()->document();
    Element* element = document->getElementById("data");

    webViewHelper.webView()->settings()->setAsynchronousSpellCheckingEnabled(true);
    webViewHelper.webView()->settings()->setUnifiedTextCheckerEnabled(true);
    webViewHelper.webView()->settings()->setEditingBehavior(WebSettings::EditingBehaviorWin);

    element->focus();
    document->execCommand("InsertText", false, "wellcome ");

    spellcheck.kick();
    ASSERT_EQ(1U, document->markers().markers().size());
    ASSERT_NE(static_cast<DocumentMarker*>(0), document->markers().markers()[0]);
    EXPECT_EQ(DocumentMarker::Spelling, document->markers().markers()[0]->type());

    document->execCommand("InsertText", false, "wellcome ");

    spellcheck.kickGrammar();
    ASSERT_EQ(1U, document->markers().markers().size());
    ASSERT_NE(static_cast<DocumentMarker*>(0), document->markers().markers()[0]);
    EXPECT_EQ(DocumentMarker::Grammar, document->markers().markers()[0]->type());

    document->execCommand("InsertText", false, "wellcome ");

    spellcheck.kickInvisibleSpellcheck();
    ASSERT_EQ(1U, document->markers().markers().size());
    ASSERT_NE(static_cast<DocumentMarker*>(0), document->markers().markers()[0]);
    EXPECT_EQ(DocumentMarker::InvisibleSpellcheck, document->markers().markers()[0]->type());
}

class TestAccessInitialDocumentWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestAccessInitialDocumentWebFrameClient() : m_didAccessInitialDocument(false)
    {
    }

    virtual void didAccessInitialDocument(WebLocalFrame* frame)
    {
        EXPECT_TRUE(!m_didAccessInitialDocument);
        m_didAccessInitialDocument = true;
    }

    bool m_didAccessInitialDocument;
};

TEST_F(WebFrameTest, DidAccessInitialDocumentBody)
{
    // FIXME: Why is this local webViewClient needed instead of the default
    // WebViewHelper one? With out it there's some mysterious crash in the
    // WebViewHelper destructor.
    FrameTestHelpers::TestWebViewClient webViewClient;
    TestAccessInitialDocumentWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, &webFrameClient, &webViewClient);
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Create another window that will try to access it.
    FrameTestHelpers::WebViewHelper newWebViewHelper;
    WebView* newView = newWebViewHelper.initialize(true);
    newView->mainFrame()->setOpener(webViewHelper.webView()->mainFrame());
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Access the initial document by modifying the body.
    newView->mainFrame()->executeScript(
        WebScriptSource("window.opener.document.body.innerHTML += 'Modified';"));
    runPendingTasks();
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);

    // Access the initial document again, to ensure we don't notify twice.
    newView->mainFrame()->executeScript(
        WebScriptSource("window.opener.document.body.innerHTML += 'Modified';"));
    runPendingTasks();
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
}

TEST_F(WebFrameTest, DidAccessInitialDocumentNavigator)
{
    // FIXME: Why is this local webViewClient needed instead of the default
    // WebViewHelper one? With out it there's some mysterious crash in the
    // WebViewHelper destructor.
    FrameTestHelpers::TestWebViewClient webViewClient;
    TestAccessInitialDocumentWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, &webFrameClient, &webViewClient);
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Create another window that will try to access it.
    FrameTestHelpers::WebViewHelper newWebViewHelper;
    WebView* newView = newWebViewHelper.initialize(true);
    newView->mainFrame()->setOpener(webViewHelper.webView()->mainFrame());
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Access the initial document to get to the navigator object.
    newView->mainFrame()->executeScript(
        WebScriptSource("console.log(window.opener.navigator);"));
    runPendingTasks();
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
}

TEST_F(WebFrameTest, DidAccessInitialDocumentViaJavascriptUrl)
{
    TestAccessInitialDocumentWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, &webFrameClient);
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Access the initial document from a javascript: URL.
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:document.body.appendChild(document.createTextNode('Modified'))");
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
}

// Fails on the WebKit XP (deps) bot. http://crbug.com/312192
#if OS(WIN)
TEST_F(WebFrameTest, DISABLED_DidAccessInitialDocumentBodyBeforeModalDialog)
#else
TEST_F(WebFrameTest, DidAccessInitialDocumentBodyBeforeModalDialog)
#endif
{
    // FIXME: Why is this local webViewClient needed instead of the default
    // WebViewHelper one? With out it there's some mysterious crash in the
    // WebViewHelper destructor.
    FrameTestHelpers::TestWebViewClient webViewClient;
    TestAccessInitialDocumentWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, &webFrameClient, &webViewClient);
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Create another window that will try to access it.
    FrameTestHelpers::WebViewHelper newWebViewHelper;
    WebView* newView = newWebViewHelper.initialize(true);
    newView->mainFrame()->setOpener(webViewHelper.webView()->mainFrame());
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Access the initial document by modifying the body. We normally set a
    // timer to notify the client.
    newView->mainFrame()->executeScript(
        WebScriptSource("window.opener.document.body.innerHTML += 'Modified';"));
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Make sure that a modal dialog forces us to notify right away.
    newView->mainFrame()->executeScript(
        WebScriptSource("window.opener.confirm('Modal');"));
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);

    // Ensure that we don't notify again later.
    runPendingTasks();
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
}

// Fails on the WebKit XP (deps) bot. http://crbug.com/312192
#if OS(WIN)
TEST_F(WebFrameTest, DISABLED_DidWriteToInitialDocumentBeforeModalDialog)
#else
TEST_F(WebFrameTest, DidWriteToInitialDocumentBeforeModalDialog)
#endif
{
    // FIXME: Why is this local webViewClient needed instead of the default
    // WebViewHelper one? With out it there's some mysterious crash in the
    // WebViewHelper destructor.
    FrameTestHelpers::TestWebViewClient webViewClient;
    TestAccessInitialDocumentWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, &webFrameClient, &webViewClient);
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Create another window that will try to access it.
    FrameTestHelpers::WebViewHelper newWebViewHelper;
    WebView* newView = newWebViewHelper.initialize(true);
    newView->mainFrame()->setOpener(webViewHelper.webView()->mainFrame());
    runPendingTasks();
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Access the initial document with document.write, which moves us past the
    // initial empty document state of the state machine. We normally set a
    // timer to notify the client.
    newView->mainFrame()->executeScript(
        WebScriptSource("window.opener.document.write('Modified'); window.opener.document.close();"));
    EXPECT_FALSE(webFrameClient.m_didAccessInitialDocument);

    // Make sure that a modal dialog forces us to notify right away.
    newView->mainFrame()->executeScript(
        WebScriptSource("window.opener.confirm('Modal');"));
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);

    // Ensure that we don't notify again later.
    runPendingTasks();
    EXPECT_TRUE(webFrameClient.m_didAccessInitialDocument);
}

class TestMainFrameUserOrProgrammaticScrollFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestMainFrameUserOrProgrammaticScrollFrameClient() { reset(); }
    void reset()
    {
        m_didScrollMainFrame = false;
        m_wasProgrammaticScroll = false;
    }
    bool wasUserScroll() const { return m_didScrollMainFrame && !m_wasProgrammaticScroll; }
    bool wasProgrammaticScroll() const { return m_didScrollMainFrame && m_wasProgrammaticScroll; }

    // WebFrameClient:
    virtual void didChangeScrollOffset(WebLocalFrame* frame) override
    {
        if (frame->parent())
            return;
        EXPECT_FALSE(m_didScrollMainFrame);
        FrameView* view = toWebLocalFrameImpl(frame)->frameView();
        // FrameView can be scrolled in FrameView::setFixedVisibleContentRect
        // which is called from LocalFrame::createView (before the frame is associated
        // with the the view).
        if (view) {
            m_didScrollMainFrame = true;
            m_wasProgrammaticScroll = view->inProgrammaticScroll();
        }
    }
private:
    bool m_didScrollMainFrame;
    bool m_wasProgrammaticScroll;
};

TEST_F(WebFrameTest, CompositorScrollIsUserScrollLongPage)
{
    registerMockedHttpURLLoad("long_scroll.html");
    TestMainFrameUserOrProgrammaticScrollFrameClient client;

    // Make sure we initialize to minimum scale, even if the window size
    // only becomes available after the load begins.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "long_scroll.html", true, &client);
    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    EXPECT_FALSE(client.wasUserScroll());
    EXPECT_FALSE(client.wasProgrammaticScroll());

    // Do a compositor scroll, verify that this is counted as a user scroll.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(0, 1), 1.1f, 0);
    EXPECT_TRUE(client.wasUserScroll());
    client.reset();

    EXPECT_FALSE(client.wasUserScroll());
    EXPECT_FALSE(client.wasProgrammaticScroll());

    // The page scale 1.0f and scroll.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(0, 1), 1.0f, 0);
    EXPECT_TRUE(client.wasUserScroll());
    client.reset();

    // No scroll event if there is no scroll delta.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(), 1.0f, 0);
    EXPECT_FALSE(client.wasUserScroll());
    EXPECT_FALSE(client.wasProgrammaticScroll());
    client.reset();

    // Non zero page scale and scroll.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(9, 13), 0.6f, 0);
    EXPECT_TRUE(client.wasUserScroll());
    client.reset();

    // Programmatic scroll.
    WebLocalFrameImpl* frameImpl = webViewHelper.webViewImpl()->mainFrameImpl();
    frameImpl->executeScript(WebScriptSource("window.scrollTo(0, 20);"));
    EXPECT_FALSE(client.wasUserScroll());
    EXPECT_TRUE(client.wasProgrammaticScroll());
    client.reset();

    // Programmatic scroll to same offset. No scroll event should be generated.
    frameImpl->executeScript(WebScriptSource("window.scrollTo(0, 20);"));
    EXPECT_FALSE(client.wasProgrammaticScroll());
    EXPECT_FALSE(client.wasUserScroll());
    client.reset();
}

TEST_F(WebFrameTest, CompositorScrollIsUserScrollShortPage)
{
    registerMockedHttpURLLoad("short_scroll.html");

    TestMainFrameUserOrProgrammaticScrollFrameClient client;

    // Short page tests.
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "short_scroll.html", true, &client);

    webViewHelper.webView()->resize(WebSize(1000, 1000));
    webViewHelper.webView()->layout();

    EXPECT_FALSE(client.wasUserScroll());
    EXPECT_FALSE(client.wasProgrammaticScroll());

    // Non zero page scale and scroll.
    webViewHelper.webViewImpl()->applyViewportDeltas(WebSize(9, 13), 2.0f, 0);
    EXPECT_FALSE(client.wasProgrammaticScroll());
    EXPECT_TRUE(client.wasUserScroll());
    client.reset();
}

TEST_F(WebFrameTest, FirstPartyForCookiesForRedirect)
{
    WTF::String filePath = Platform::current()->unitTestSupport()->webKitRootDir();
    filePath.append("/Source/web/tests/data/first_party.html");

    WebURL testURL(toKURL("http://internal.test/first_party_redirect.html"));
    char redirect[] = "http://internal.test/first_party.html";
    WebURL redirectURL(toKURL(redirect));
    WebURLResponse redirectResponse;
    redirectResponse.initialize();
    redirectResponse.setMIMEType("text/html");
    redirectResponse.setHTTPStatusCode(302);
    redirectResponse.setHTTPHeaderField("Location", redirect);
    Platform::current()->unitTestSupport()->registerMockedURL(testURL, redirectResponse, filePath);

    WebURLResponse finalResponse;
    finalResponse.initialize();
    finalResponse.setMIMEType("text/html");
    Platform::current()->unitTestSupport()->registerMockedURL(redirectURL, finalResponse, filePath);

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "first_party_redirect.html", true);
    EXPECT_TRUE(webViewHelper.webView()->mainFrame()->document().firstPartyForCookies() == redirectURL);
}

class TestNavigationPolicyWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:

    virtual void didNavigateWithinPage(WebLocalFrame*, const WebHistoryItem&, WebHistoryCommitType) override
    {
        EXPECT_TRUE(false);
    }
};

TEST_F(WebFrameTest, SimulateFragmentAnchorMiddleClick)
{
    registerMockedHttpURLLoad("fragment_middle_click.html");
    TestNavigationPolicyWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fragment_middle_click.html", true, &client);

    Document* document = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document();
    KURL destination = document->url();
    destination.setFragmentIdentifier("test");

    RefPtrWillBeRawPtr<Event> event = MouseEvent::create(EventTypeNames::click, false, false,
        document->domWindow(), 0, 0, 0, 0, 0, 0, 0, false, false, false, false, 1, nullptr, nullptr);
    FrameLoadRequest frameRequest(document, ResourceRequest(destination));
    frameRequest.setTriggeringEvent(event);
    toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->loader().load(frameRequest);
}

class TestNewWindowWebViewClient : public FrameTestHelpers::TestWebViewClient {
public:
    virtual WebView* createView(WebLocalFrame*, const WebURLRequest&, const WebWindowFeatures&,
        const WebString&, WebNavigationPolicy, bool) override
    {
        EXPECT_TRUE(false);
        return 0;
    }
};

class TestNewWindowWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestNewWindowWebFrameClient()
        : m_decidePolicyCallCount(0)
    {
    }

    virtual WebNavigationPolicy decidePolicyForNavigation(const NavigationPolicyInfo& info) override
    {
        m_decidePolicyCallCount++;
        return info.defaultPolicy;
    }

    int decidePolicyCallCount() const { return m_decidePolicyCallCount; }

private:
    int m_decidePolicyCallCount;
};

TEST_F(WebFrameTest, ModifiedClickNewWindow)
{
    registerMockedHttpURLLoad("ctrl_click.html");
    registerMockedHttpURLLoad("hello_world.html");
    TestNewWindowWebViewClient webViewClient;
    TestNewWindowWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "ctrl_click.html", true, &webFrameClient, &webViewClient);

    Document* document = toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document();
    KURL destination = toKURL(m_baseURL + "hello_world.html");

    // ctrl+click event
    RefPtrWillBeRawPtr<Event> event = MouseEvent::create(EventTypeNames::click, false, false,
        document->domWindow(), 0, 0, 0, 0, 0, 0, 0, true, false, false, false, 0, nullptr, nullptr);
    FrameLoadRequest frameRequest(document, ResourceRequest(destination));
    frameRequest.setTriggeringEvent(event);
    UserGestureIndicator gesture(DefinitelyProcessingUserGesture);
    toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->loader().load(frameRequest);
    FrameTestHelpers::pumpPendingRequestsDoNotUse(webViewHelper.webView()->mainFrame());

    // decidePolicyForNavigation should be called both for the original request and the ctrl+click.
    EXPECT_EQ(2, webFrameClient.decidePolicyCallCount());
}

TEST_F(WebFrameTest, BackToReload)
{
    registerMockedHttpURLLoad("fragment_middle_click.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fragment_middle_click.html", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();
    const FrameLoader& mainFrameLoader = webViewHelper.webViewImpl()->mainFrameImpl()->frame()->loader();
    RefPtrWillBePersistent<HistoryItem> firstItem = mainFrameLoader.currentItem();
    EXPECT_TRUE(firstItem);

    registerMockedHttpURLLoad("white-1x1.png");
    FrameTestHelpers::loadFrame(frame, m_baseURL + "white-1x1.png");
    EXPECT_NE(firstItem.get(), mainFrameLoader.currentItem());

    FrameTestHelpers::loadHistoryItem(frame, WebHistoryItem(firstItem.get()), WebHistoryDifferentDocumentLoad, WebURLRequest::UseProtocolCachePolicy);
    EXPECT_EQ(firstItem.get(), mainFrameLoader.currentItem());

    FrameTestHelpers::reloadFrame(frame);
    EXPECT_EQ(WebURLRequest::ReloadIgnoringCacheData, frame->dataSource()->request().cachePolicy());
}

TEST_F(WebFrameTest, BackDuringChildFrameReload)
{
    registerMockedHttpURLLoad("page_with_blank_iframe.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "page_with_blank_iframe.html", true);
    WebFrame* mainFrame = webViewHelper.webView()->mainFrame();
    const FrameLoader& mainFrameLoader = webViewHelper.webViewImpl()->mainFrameImpl()->frame()->loader();
    WebFrame* childFrame = mainFrame->firstChild();
    ASSERT_TRUE(childFrame);

    // Start a history navigation, then have a different frame commit a navigation.
    // In this case, reload an about:blank frame, which will commit synchronously.
    // After the history navigation completes, both the appropriate document url and
    // the current history item should reflect the history navigation.
    registerMockedHttpURLLoad("white-1x1.png");
    WebHistoryItem item;
    item.initialize();
    WebURL historyURL(toKURL(m_baseURL + "white-1x1.png"));
    item.setURLString(historyURL.string());
    mainFrame->loadHistoryItem(item, WebHistoryDifferentDocumentLoad, WebURLRequest::UseProtocolCachePolicy);

    FrameTestHelpers::reloadFrame(childFrame);
    EXPECT_EQ(item.urlString(), mainFrame->document().url().string());
    EXPECT_EQ(item.urlString(), WebString(mainFrameLoader.currentItem()->urlString()));
}

TEST_F(WebFrameTest, ReloadPost)
{
    registerMockedHttpURLLoad("reload_post.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "reload_post.html", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), "javascript:document.forms[0].submit()");
    // Pump requests one more time after the javascript URL has executed to
    // trigger the actual POST load request.
    FrameTestHelpers::pumpPendingRequestsDoNotUse(webViewHelper.webView()->mainFrame());
    EXPECT_EQ(WebString::fromUTF8("POST"), frame->dataSource()->request().httpMethod());

    FrameTestHelpers::reloadFrame(frame);
    EXPECT_EQ(WebURLRequest::ReloadIgnoringCacheData, frame->dataSource()->request().cachePolicy());
    EXPECT_EQ(WebNavigationTypeFormResubmitted, frame->dataSource()->navigationType());
}

TEST_F(WebFrameTest, LoadHistoryItemReload)
{
    registerMockedHttpURLLoad("fragment_middle_click.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fragment_middle_click.html", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();
    const FrameLoader& mainFrameLoader = webViewHelper.webViewImpl()->mainFrameImpl()->frame()->loader();
    RefPtrWillBePersistent<HistoryItem> firstItem = mainFrameLoader.currentItem();
    EXPECT_TRUE(firstItem);

    registerMockedHttpURLLoad("white-1x1.png");
    FrameTestHelpers::loadFrame(frame, m_baseURL + "white-1x1.png");
    EXPECT_NE(firstItem.get(), mainFrameLoader.currentItem());

    // Cache policy overrides should take.
    FrameTestHelpers::loadHistoryItem(frame, WebHistoryItem(firstItem), WebHistoryDifferentDocumentLoad, WebURLRequest::ReloadIgnoringCacheData);
    EXPECT_EQ(firstItem.get(), mainFrameLoader.currentItem());
    EXPECT_EQ(WebURLRequest::ReloadIgnoringCacheData, frame->dataSource()->request().cachePolicy());
}


class TestCachePolicyWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    explicit TestCachePolicyWebFrameClient(TestCachePolicyWebFrameClient* parentClient)
        : m_parentClient(parentClient)
        , m_policy(WebURLRequest::UseProtocolCachePolicy)
        , m_childClient(0)
        , m_willSendRequestCallCount(0)
        , m_childFrameCreationCount(0)
    {
    }

    void setChildWebFrameClient(TestCachePolicyWebFrameClient* client) { m_childClient = client; }
    WebURLRequest::CachePolicy cachePolicy() const { return m_policy; }
    int willSendRequestCallCount() const { return m_willSendRequestCallCount; }
    int childFrameCreationCount() const { return m_childFrameCreationCount; }

    virtual WebFrame* createChildFrame(WebLocalFrame* parent, const WebString&)
    {
        ASSERT(m_childClient);
        m_childFrameCreationCount++;
        WebFrame* frame = WebLocalFrame::create(m_childClient);
        parent->appendChild(frame);
        return frame;
    }

    virtual void didStartLoading(bool toDifferentDocument)
    {
        if (m_parentClient) {
            m_parentClient->didStartLoading(toDifferentDocument);
            return;
        }
        TestWebFrameClient::didStartLoading(toDifferentDocument);
    }

    virtual void didStopLoading()
    {
        if (m_parentClient) {
            m_parentClient->didStopLoading();
            return;
        }
        TestWebFrameClient::didStopLoading();
    }

    virtual void willSendRequest(WebLocalFrame* frame, unsigned, WebURLRequest& request, const WebURLResponse&) override
    {
        m_policy = request.cachePolicy();
        m_willSendRequestCallCount++;
    }

private:
    TestCachePolicyWebFrameClient* m_parentClient;

    WebURLRequest::CachePolicy m_policy;
    TestCachePolicyWebFrameClient* m_childClient;
    int m_willSendRequestCallCount;
    int m_childFrameCreationCount;
};

TEST_F(WebFrameTest, ReloadIframe)
{
    registerMockedHttpURLLoad("iframe_reload.html");
    registerMockedHttpURLLoad("visible_iframe.html");
    TestCachePolicyWebFrameClient mainClient(0);
    TestCachePolicyWebFrameClient childClient(&mainClient);
    mainClient.setChildWebFrameClient(&childClient);

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "iframe_reload.html", true, &mainClient);

    WebLocalFrameImpl* mainFrame = webViewHelper.webViewImpl()->mainFrameImpl();
    RefPtrWillBeRawPtr<WebLocalFrameImpl> childFrame = toWebLocalFrameImpl(mainFrame->firstChild());
    ASSERT_EQ(childFrame->client(), &childClient);
    EXPECT_EQ(mainClient.childFrameCreationCount(), 1);
    EXPECT_EQ(childClient.willSendRequestCallCount(), 1);
    EXPECT_EQ(childClient.cachePolicy(), WebURLRequest::UseProtocolCachePolicy);

    FrameTestHelpers::reloadFrame(mainFrame);

    // A new WebFrame should have been created, but the child WebFrameClient should be reused.
    ASSERT_NE(childFrame, toWebLocalFrameImpl(mainFrame->firstChild()));
    ASSERT_EQ(toWebLocalFrameImpl(mainFrame->firstChild())->client(), &childClient);

    EXPECT_EQ(mainClient.childFrameCreationCount(), 2);
    EXPECT_EQ(childClient.willSendRequestCallCount(), 2);
    EXPECT_EQ(childClient.cachePolicy(), WebURLRequest::ReloadIgnoringCacheData);
}

class TestSameDocumentWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestSameDocumentWebFrameClient()
        : m_frameLoadTypeSameSeen(false)
    {
    }

    virtual void willSendRequest(WebLocalFrame* frame, unsigned, WebURLRequest&, const WebURLResponse&)
    {
        if (toWebLocalFrameImpl(frame)->frame()->loader().loadType() == FrameLoadTypeSame)
            m_frameLoadTypeSameSeen = true;
    }

    bool frameLoadTypeSameSeen() const { return m_frameLoadTypeSameSeen; }

private:
    bool m_frameLoadTypeSameSeen;
};

TEST_F(WebFrameTest, NavigateToSame)
{
    registerMockedHttpURLLoad("navigate_to_same.html");
    TestSameDocumentWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "navigate_to_same.html", true, &client);
    EXPECT_FALSE(client.frameLoadTypeSameSeen());

    FrameLoadRequest frameRequest(0, ResourceRequest(toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->document()->url()));
    toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame())->loader().load(frameRequest);
    FrameTestHelpers::pumpPendingRequestsDoNotUse(webViewHelper.webView()->mainFrame());

    EXPECT_TRUE(client.frameLoadTypeSameSeen());
}

class TestSameDocumentWithImageWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestSameDocumentWithImageWebFrameClient()
        : m_numOfImageRequests(0)
    {
    }

    virtual void willSendRequest(WebLocalFrame* frame, unsigned, WebURLRequest& request, const WebURLResponse&)
    {
        if (request.requestContext() == WebURLRequest::RequestContextImage) {
            m_numOfImageRequests++;
            EXPECT_EQ(WebURLRequest::UseProtocolCachePolicy, request.cachePolicy());
        }
    }

    int numOfImageRequests() const { return m_numOfImageRequests; }

private:
    int m_numOfImageRequests;
};

TEST_F(WebFrameTest, NavigateToSameNoConditionalRequestForSubresource)
{
    registerMockedHttpURLLoad("foo_with_image.html");
    registerMockedHttpURLLoad("white-1x1.png");
    TestSameDocumentWithImageWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "foo_with_image.html", true, &client, 0, &configureLoadsImagesAutomatically);

    WebCache::clear();
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "foo_with_image.html");

    EXPECT_EQ(client.numOfImageRequests(), 2);
}

TEST_F(WebFrameTest, WebNodeImageContents)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();

    static const char bluePNG[] = "<img src=\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAGElEQVQYV2NkYPj/n4EIwDiqEF8oUT94AFIQE/cCn90IAAAAAElFTkSuQmCC\">";

    // Load up the image and test that we can extract the contents.
    KURL testURL = toKURL("about:blank");
    FrameTestHelpers::loadHTMLString(frame, bluePNG, testURL);

    WebNode node = frame->document().body().firstChild();
    EXPECT_TRUE(node.isElementNode());
    WebElement element = node.to<WebElement>();
    WebImage image = element.imageContents();
    ASSERT_FALSE(image.isNull());
    EXPECT_EQ(image.size().width, 10);
    EXPECT_EQ(image.size().height, 10);
//    FIXME: The rest of this test is disabled since the ImageDecodeCache state may be inconsistent when this test runs.
//    crbug.com/266088
//    SkBitmap bitmap = image.getSkBitmap();
//    SkAutoLockPixels locker(bitmap);
//    EXPECT_EQ(bitmap.getColor(0, 0), SK_ColorBLUE);
}

class TestStartStopCallbackWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestStartStopCallbackWebFrameClient()
        : m_startLoadingCount(0)
        , m_stopLoadingCount(0)
        , m_differentDocumentStartCount(0)
    {
    }

    virtual void didStartLoading(bool toDifferentDocument) override
    {
        TestWebFrameClient::didStartLoading(toDifferentDocument);
        m_startLoadingCount++;
        if (toDifferentDocument)
            m_differentDocumentStartCount++;
    }

    virtual void didStopLoading() override
    {
        TestWebFrameClient::didStopLoading();
        m_stopLoadingCount++;
    }

    int startLoadingCount() const { return m_startLoadingCount; }
    int stopLoadingCount() const { return m_stopLoadingCount; }
    int differentDocumentStartCount() const { return m_differentDocumentStartCount; }

private:
    int m_startLoadingCount;
    int m_stopLoadingCount;
    int m_differentDocumentStartCount;
};

TEST_F(WebFrameTest, PushStateStartsAndStops)
{
    registerMockedHttpURLLoad("push_state.html");
    TestStartStopCallbackWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "push_state.html", true, &client);

    EXPECT_EQ(client.startLoadingCount(), 2);
    EXPECT_EQ(client.stopLoadingCount(), 2);
    EXPECT_EQ(client.differentDocumentStartCount(), 1);
}

class TestDidNavigateCommitTypeWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestDidNavigateCommitTypeWebFrameClient()
        : m_lastCommitType(WebHistoryInertCommit)
    {
    }

    virtual void didNavigateWithinPage(WebLocalFrame*, const WebHistoryItem&, WebHistoryCommitType type) override
    {
        m_lastCommitType = type;
    }

    WebHistoryCommitType lastCommitType() const { return m_lastCommitType; }

private:
    WebHistoryCommitType m_lastCommitType;
};

TEST_F(WebFrameTest, SameDocumentHistoryNavigationCommitType)
{
    registerMockedHttpURLLoad("push_state.html");
    TestDidNavigateCommitTypeWebFrameClient client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "push_state.html", true, &client);
    RefPtrWillBePersistent<HistoryItem> item = toLocalFrame(webViewImpl->page()->mainFrame())->loader().currentItem();
    runPendingTasks();

    toLocalFrame(webViewImpl->page()->mainFrame())->loader().loadHistoryItem(item.get(), FrameLoadTypeBackForward, HistorySameDocumentLoad);
    EXPECT_EQ(WebBackForwardCommit, client.lastCommitType());
}

class TestHistoryWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    TestHistoryWebFrameClient()
    {
        m_replacesCurrentHistoryItem = false;
        m_frame = 0;
    }

    void didStartProvisionalLoad(WebLocalFrame* frame, bool isTransitionNavigation)
    {
        WebDataSource* ds = frame->provisionalDataSource();
        m_replacesCurrentHistoryItem = ds->replacesCurrentHistoryItem();
        m_frame = frame;
    }

    bool replacesCurrentHistoryItem() { return m_replacesCurrentHistoryItem; }
    WebFrame* frame() { return m_frame; }

private:
    bool m_replacesCurrentHistoryItem;
    WebFrame* m_frame;
};

// Test which ensures that the first navigation in a subframe will always
// result in history entry being replaced and not a new one added.
TEST_F(WebFrameTest, DISABLED_FirstFrameNavigationReplacesHistory)
{
    registerMockedHttpURLLoad("history.html");
    registerMockedHttpURLLoad("find.html");

    FrameTestHelpers::WebViewHelper webViewHelper;
    TestHistoryWebFrameClient client;
    webViewHelper.initializeAndLoad("about:blank", true, &client);
    EXPECT_TRUE(client.replacesCurrentHistoryItem());

    WebFrame* frame = webViewHelper.webView()->mainFrame();

    FrameTestHelpers::loadFrame(frame,
        "javascript:document.body.appendChild(document.createElement('iframe'))");
    WebFrame* iframe = frame->firstChild();
    EXPECT_EQ(client.frame(), iframe);
    EXPECT_TRUE(client.replacesCurrentHistoryItem());

    FrameTestHelpers::loadFrame(frame,
        "javascript:window.frames[0].location.assign('" + m_baseURL + "history.html')");
    EXPECT_EQ(client.frame(), iframe);
    EXPECT_TRUE(client.replacesCurrentHistoryItem());

    FrameTestHelpers::loadFrame(frame,
        "javascript:window.frames[0].location.assign('" + m_baseURL + "find.html')");
    EXPECT_EQ(client.frame(), iframe);
    EXPECT_FALSE(client.replacesCurrentHistoryItem());

    // Repeat the test, but start out the iframe with initial URL, which is not
    // "about:blank".
    FrameTestHelpers::loadFrame(frame,
        "javascript:var f = document.createElement('iframe'); "
        "f.src = '" + m_baseURL + "history.html';"
        "document.body.appendChild(f)");

    iframe = frame->firstChild()->nextSibling();
    EXPECT_EQ(client.frame(), iframe);
    EXPECT_TRUE(client.replacesCurrentHistoryItem());

    FrameTestHelpers::loadFrame(frame,
        "javascript:window.frames[1].location.assign('" + m_baseURL + "find.html')");
    EXPECT_EQ(client.frame(), iframe);
    EXPECT_FALSE(client.replacesCurrentHistoryItem());
}

// Test verifies that layout will change a layer's scrollable attibutes
TEST_F(WebFrameTest, overflowHiddenRewrite)
{
    registerMockedHttpURLLoad("non-scrollable.html");
    TestMainFrameUserOrProgrammaticScrollFrameClient client;
    OwnPtr<FakeCompositingWebViewClient> fakeCompositingWebViewClient = adoptPtr(new FakeCompositingWebViewClient());
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize(true, 0, fakeCompositingWebViewClient.get(), &configueCompositingWebView);

    webViewHelper.webView()->resize(WebSize(100, 100));
    FrameTestHelpers::loadFrame(webViewHelper.webView()->mainFrame(), m_baseURL + "non-scrollable.html");

    RenderLayerCompositor* compositor =  webViewHelper.webViewImpl()->compositor();
    ASSERT_TRUE(compositor->scrollLayer());

    // Verify that the WebLayer is not scrollable initially.
    GraphicsLayer* scrollLayer = compositor->scrollLayer();
    WebLayer* webScrollLayer = scrollLayer->platformLayer();
    ASSERT_FALSE(webScrollLayer->userScrollableHorizontal());
    ASSERT_FALSE(webScrollLayer->userScrollableVertical());

    // Call javascript to make the layer scrollable, and verify it.
    WebLocalFrameImpl* frame = (WebLocalFrameImpl*)webViewHelper.webView()->mainFrame();
    frame->executeScript(WebScriptSource("allowScroll();"));
    webViewHelper.webView()->layout();
    ASSERT_TRUE(webScrollLayer->userScrollableHorizontal());
    ASSERT_TRUE(webScrollLayer->userScrollableVertical());
}

// Test that currentHistoryItem reflects the current page, not the provisional load.
TEST_F(WebFrameTest, CurrentHistoryItem)
{
    registerMockedHttpURLLoad("fixed_layout.html");
    std::string url = m_baseURL + "fixed_layout.html";

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initialize();
    WebFrame* frame = webViewHelper.webView()->mainFrame();
    const FrameLoader& mainFrameLoader = webViewHelper.webViewImpl()->mainFrameImpl()->frame()->loader();
    WebURLRequest request;
    request.initialize();
    request.setURL(toKURL(url));
    frame->loadRequest(request);

    // Before commit, there is no history item.
    EXPECT_FALSE(mainFrameLoader.currentItem());

    FrameTestHelpers::pumpPendingRequestsDoNotUse(frame);

    // After commit, there is.
    HistoryItem* item = mainFrameLoader.currentItem();
    ASSERT_TRUE(item);
    EXPECT_EQ(WTF::String(url.data()), item->urlString());
}

class FailCreateChildFrame : public FrameTestHelpers::TestWebFrameClient {
public:
    FailCreateChildFrame() : m_callCount(0) { }

    virtual WebFrame* createChildFrame(WebLocalFrame* parent, const WebString& frameName) override
    {
        ++m_callCount;
        return 0;
    }

    int callCount() const { return m_callCount; }

private:
    int m_callCount;
};

// Test that we don't crash if WebFrameClient::createChildFrame() fails.
TEST_F(WebFrameTest, CreateChildFrameFailure)
{
    registerMockedHttpURLLoad("create_child_frame_fail.html");
    FailCreateChildFrame client;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "create_child_frame_fail.html", true, &client);

    EXPECT_EQ(1, client.callCount());
}

TEST_F(WebFrameTest, fixedPositionInFixedViewport)
{
    UseMockScrollbarSettings mockScrollbarSettings;
    registerMockedHttpURLLoad("fixed-position-in-fixed-viewport.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "fixed-position-in-fixed-viewport.html", true, 0, 0, enableViewportSettings);

    WebView* webView = webViewHelper.webView();
    webView->resize(WebSize(100, 100));
    webView->layout();

    Document* document = toWebLocalFrameImpl(webView->mainFrame())->frame()->document();
    Element* bottomFixed = document->getElementById("bottom-fixed");
    Element* topBottomFixed = document->getElementById("top-bottom-fixed");
    Element* rightFixed = document->getElementById("right-fixed");
    Element* leftRightFixed = document->getElementById("left-right-fixed");

    webView->resize(WebSize(100, 200));
    webView->layout();
    EXPECT_EQ(200, bottomFixed->offsetTop() + bottomFixed->offsetHeight());
    EXPECT_EQ(200, topBottomFixed->offsetHeight());

    webView->settings()->setMainFrameResizesAreOrientationChanges(false);
    webView->resize(WebSize(200, 200));
    webView->layout();
    EXPECT_EQ(200, rightFixed->offsetLeft() + rightFixed->offsetWidth());
    EXPECT_EQ(200, leftRightFixed->offsetWidth());

    webView->settings()->setMainFrameResizesAreOrientationChanges(true);
    // Will scale the page by 1.5.
    webView->resize(WebSize(300, 330));
    webView->layout();
    EXPECT_EQ(220, bottomFixed->offsetTop() + bottomFixed->offsetHeight());
    EXPECT_EQ(220, topBottomFixed->offsetHeight());
    EXPECT_EQ(200, rightFixed->offsetLeft() + rightFixed->offsetWidth());
    EXPECT_EQ(200, leftRightFixed->offsetWidth());
}

TEST_F(WebFrameTest, FrameViewSetFrameRect)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank");

    FrameView* frameView = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
    frameView->setFrameRect(IntRect(0, 0, 200, 200));
    EXPECT_RECT_EQ(IntRect(0, 0, 200, 200), frameView->frameRect());
    frameView->setFrameRect(IntRect(100, 100, 200, 200));
    EXPECT_RECT_EQ(IntRect(100, 100, 200, 200), frameView->frameRect());
}

// FIXME(bokan) Renable once Chromium-side of patch lands
TEST_F(WebFrameTest, DISABLED_FrameViewScrollAccountsForTopControls)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank");

    WebViewImpl* webView = webViewHelper.webViewImpl();
    FrameView* frameView = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();

    webView->setTopControlsLayoutHeight(0);
    webView->resize(WebSize(100, 100));
    webView->setPageScaleFactor(2.0f);
    webView->layout();

    webView->setMainFrameScrollOffset(WebPoint(20, 100));
    EXPECT_POINT_EQ(IntPoint(20, 50), IntPoint(frameView->scrollOffset()));

    // Simulate the top controls showing by 20px, thus shrinking the viewport
    // and allowing it to scroll an additional 10px (since we're 2X zoomed).
    webView->applyViewportDeltas(WebSize(0, 0), 1.0f, 20.0f);
    EXPECT_POINT_EQ(IntPoint(50, 60), frameView->maximumScrollPosition());

    // Show more, make sure the scroll actually gets clamped. Horizontal
    // direction shouldn't be affected.
    webView->applyViewportDeltas(WebSize(0, 0), 1.0f, 20.0f);
    webView->setMainFrameScrollOffset(WebPoint(100, 100));
    EXPECT_POINT_EQ(IntPoint(50, 70), IntPoint(frameView->scrollOffset()));

    // Hide until there's 10px showing.
    webView->applyViewportDeltas(WebSize(0, 0), 1.0f, -30.0f);
    EXPECT_POINT_EQ(IntPoint(50, 55), frameView->maximumScrollPosition());

    // Simulate a RenderPart::resize. The frame is resized to accomodate
    // the top controls and Blink's view of the top controls matches that of
    // the CC
    webView->setTopControlsLayoutHeight(10.0f);
    webView->resize(WebSize(100, 90));
    webView->layout();
    EXPECT_POINT_EQ(IntPoint(50, 45), frameView->maximumScrollPosition());

    // Now simulate hiding.
    webView->applyViewportDeltas(WebSize(0, 0), 1.0f, -10.0f);
    EXPECT_POINT_EQ(IntPoint(50, 40), frameView->maximumScrollPosition());

    // Reset to original state: 100px widget height, top controls fully hidden.
    webView->setTopControlsLayoutHeight(0.0f);
    webView->resize(WebSize(100, 100));
    webView->layout();
    EXPECT_POINT_EQ(IntPoint(50, 50), frameView->maximumScrollPosition());

    // Show the top controls by just 1px, since we're zoomed in to 2X, that
    // should allow an extra 0.5px of scrolling, but since we quantize to ints
    // it should clamp such that we don't show anything outside bounds.
    webView->applyViewportDeltas(WebSize(0, 0), 1.0f, 1.0f);
    EXPECT_POINT_EQ(IntPoint(50, 50), frameView->maximumScrollPosition());

    webView->applyViewportDeltas(WebSize(0, 0), 1.0f, 2.0f);
    EXPECT_POINT_EQ(IntPoint(50, 51), frameView->maximumScrollPosition());
}

TEST_F(WebFrameTest, FullscreenLayerSize)
{
    FakeCompositingWebViewClient client;
    registerMockedHttpURLLoad("fullscreen_div.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    int viewportWidth = 640;
    int viewportHeight = 480;
    client.m_screenInfo.rect.width = viewportWidth;
    client.m_screenInfo.rect.height = viewportHeight;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "fullscreen_div.html", true, 0, &client, configurePinchVirtualViewport);
    webViewImpl->resize(WebSize(viewportWidth, viewportHeight));
    webViewImpl->layout();

    Document* document = toWebLocalFrameImpl(webViewImpl->mainFrame())->frame()->document();
    UserGestureIndicator gesture(DefinitelyProcessingUserGesture);
    Element* divFullscreen = document->getElementById("div1");
    Fullscreen::from(*document).requestFullscreen(*divFullscreen, Fullscreen::PrefixedRequest);
    webViewImpl->didEnterFullScreen();
    webViewImpl->layout();
    ASSERT_TRUE(Fullscreen::isFullScreen(*document));

    // Verify that the element is sized to the viewport.
    RenderFullScreen* fullscreenRenderer = Fullscreen::from(*document).fullScreenRenderer();
    EXPECT_EQ(viewportWidth, fullscreenRenderer->logicalWidth().toInt());
    EXPECT_EQ(viewportHeight, fullscreenRenderer->logicalHeight().toInt());

    // Verify it's updated after a device rotation.
    client.m_screenInfo.rect.width = viewportHeight;
    client.m_screenInfo.rect.height = viewportWidth;
    webViewImpl->resize(WebSize(viewportHeight, viewportWidth));
    webViewImpl->layout();
    EXPECT_EQ(viewportHeight, fullscreenRenderer->logicalWidth().toInt());
    EXPECT_EQ(viewportWidth, fullscreenRenderer->logicalHeight().toInt());
}

TEST_F(WebFrameTest, FullscreenLayerNonScrollable)
{
    FakeCompositingWebViewClient client;
    registerMockedHttpURLLoad("fullscreen_div.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    int viewportWidth = 640;
    int viewportHeight = 480;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "fullscreen_div.html", true, 0, &client, configurePinchVirtualViewport);
    webViewImpl->resize(WebSize(viewportWidth, viewportHeight));
    webViewImpl->layout();

    Document* document = toWebLocalFrameImpl(webViewImpl->mainFrame())->frame()->document();
    UserGestureIndicator gesture(DefinitelyProcessingUserGesture);
    Element* divFullscreen = document->getElementById("div1");
    Fullscreen::from(*document).requestFullscreen(*divFullscreen, Fullscreen::PrefixedRequest);
    webViewImpl->didEnterFullScreen();
    webViewImpl->layout();

    // Verify that the main frame is nonscrollable.
    ASSERT_TRUE(Fullscreen::isFullScreen(*document));
    WebLayer* webScrollLayer = webViewImpl->compositor()->scrollLayer()->platformLayer();
    ASSERT_FALSE(webScrollLayer->userScrollableHorizontal());
    ASSERT_FALSE(webScrollLayer->userScrollableVertical());

    // Verify that the main frame is scrollable upon exiting fullscreen.
    webViewImpl->didExitFullScreen();
    webViewImpl->layout();
    ASSERT_FALSE(Fullscreen::isFullScreen(*document));
    webScrollLayer = webViewImpl->compositor()->scrollLayer()->platformLayer();
    ASSERT_TRUE(webScrollLayer->userScrollableHorizontal());
    ASSERT_TRUE(webScrollLayer->userScrollableVertical());
}

TEST_F(WebFrameTest, FullscreenMainFrame)
{
    FakeCompositingWebViewClient client;
    registerMockedHttpURLLoad("fullscreen_div.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    int viewportWidth = 640;
    int viewportHeight = 480;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "fullscreen_div.html", true, 0, &client, configurePinchVirtualViewport);
    webViewImpl->resize(WebSize(viewportWidth, viewportHeight));
    webViewImpl->layout();

    Document* document = toWebLocalFrameImpl(webViewImpl->mainFrame())->frame()->document();
    UserGestureIndicator gesture(DefinitelyProcessingUserGesture);
    Fullscreen::from(*document).requestFullscreen(*document->documentElement(), Fullscreen::PrefixedRequest);
    webViewImpl->didEnterFullScreen();
    webViewImpl->layout();

    // Verify that the main frame is still scrollable.
    ASSERT_TRUE(Fullscreen::isFullScreen(*document));
    WebLayer* webScrollLayer = webViewImpl->compositor()->scrollLayer()->platformLayer();
    ASSERT_TRUE(webScrollLayer->scrollable());
    ASSERT_TRUE(webScrollLayer->userScrollableHorizontal());
    ASSERT_TRUE(webScrollLayer->userScrollableVertical());

    // Verify the main frame still behaves correctly after a resize.
    webViewImpl->resize(WebSize(viewportHeight, viewportWidth));
    ASSERT_TRUE(webScrollLayer->scrollable());
    ASSERT_TRUE(webScrollLayer->userScrollableHorizontal());
    ASSERT_TRUE(webScrollLayer->userScrollableVertical());
}

TEST_F(WebFrameTest, FullscreenSubframe)
{
    FakeCompositingWebViewClient client;
    registerMockedHttpURLLoad("fullscreen_iframe.html");
    registerMockedHttpURLLoad("fullscreen_div.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "fullscreen_iframe.html", true, 0, &client, configurePinchVirtualViewport);
    int viewportWidth = 640;
    int viewportHeight = 480;
    client.m_screenInfo.rect.width = viewportWidth;
    client.m_screenInfo.rect.height = viewportHeight;
    webViewImpl->resize(WebSize(viewportWidth, viewportHeight));
    webViewImpl->layout();

    Document* document = toWebLocalFrameImpl(webViewHelper.webView()->mainFrame()->firstChild())->frame()->document();
    UserGestureIndicator gesture(DefinitelyProcessingUserGesture);
    Element* divFullscreen = document->getElementById("div1");
    Fullscreen::from(*document).requestFullscreen(*divFullscreen, Fullscreen::PrefixedRequest);
    webViewImpl->didEnterFullScreen();
    webViewImpl->layout();

    // Verify that the element is sized to the viewport.
    RenderFullScreen* fullscreenRenderer = Fullscreen::from(*document).fullScreenRenderer();
    EXPECT_EQ(viewportWidth, fullscreenRenderer->logicalWidth().toInt());
    EXPECT_EQ(viewportHeight, fullscreenRenderer->logicalHeight().toInt());

    // Verify it's updated after a device rotation.
    client.m_screenInfo.rect.width = viewportHeight;
    client.m_screenInfo.rect.height = viewportWidth;
    webViewImpl->resize(WebSize(viewportHeight, viewportWidth));
    webViewImpl->layout();
    EXPECT_EQ(viewportHeight, fullscreenRenderer->logicalWidth().toInt());
    EXPECT_EQ(viewportWidth, fullscreenRenderer->logicalHeight().toInt());
}

TEST_F(WebFrameTest, FullscreenMediaStreamVideo)
{
    RuntimeEnabledFeatures::setOverlayFullscreenVideoEnabled(true);
    FakeCompositingWebViewClient client;
    registerMockedHttpURLLoad("fullscreen_video.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "fullscreen_video.html", true, 0, &client, configurePinchVirtualViewport);
    int viewportWidth = 640;
    int viewportHeight = 480;
    client.m_screenInfo.rect.width = viewportWidth;
    client.m_screenInfo.rect.height = viewportHeight;
    webViewImpl->resize(WebSize(viewportWidth, viewportHeight));
    webViewImpl->layout();

    // Fake the video element as MediaStream
    RefPtrWillBeRawPtr<NullExecutionContext> context = adoptRefWillBeNoop(new NullExecutionContext());
    MediaStreamRegistry::registry().registerURL(0, toKURL(m_baseURL + "test.webm"), MediaStream::create(context.get()));
    Document* document = toWebLocalFrameImpl(webViewImpl->mainFrame())->frame()->document();
    UserGestureIndicator gesture(DefinitelyProcessingUserGesture);
    Element* videoFullscreen = document->getElementById("video");
    Fullscreen::from(*document).requestFullscreen(*videoFullscreen, Fullscreen::PrefixedRequest);
    webViewImpl->didEnterFullScreen();
    webViewImpl->layout();

    // Verify that the video layer is visible in fullscreen.
    RenderLayer* renderLayer =  videoFullscreen->renderer()->enclosingLayer();
    GraphicsLayer* graphicsLayer = renderLayer->graphicsLayerBacking();
    EXPECT_TRUE(graphicsLayer->contentsAreVisible());
}

TEST_F(WebFrameTest, RenderBlockPercentHeightDescendants)
{
    registerMockedHttpURLLoad("percent-height-descendants.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "percent-height-descendants.html");

    WebView* webView = webViewHelper.webView();
    webView->resize(WebSize(800, 800));
    webView->layout();

    Document* document = toWebLocalFrameImpl(webView->mainFrame())->frame()->document();
    RenderBlock* container = toRenderBlock(document->getElementById("container")->renderer());
    RenderBox* percentHeightInAnonymous = toRenderBox(document->getElementById("percent-height-in-anonymous")->renderer());
    RenderBox* percentHeightDirectChild = toRenderBox(document->getElementById("percent-height-direct-child")->renderer());

    EXPECT_TRUE(RenderBlock::hasPercentHeightDescendant(percentHeightInAnonymous));
    EXPECT_TRUE(RenderBlock::hasPercentHeightDescendant(percentHeightDirectChild));

    ASSERT_TRUE(container->percentHeightDescendants());
    ASSERT_TRUE(container->hasPercentHeightDescendants());
    EXPECT_EQ(2U, container->percentHeightDescendants()->size());
    EXPECT_TRUE(container->percentHeightDescendants()->contains(percentHeightInAnonymous));
    EXPECT_TRUE(container->percentHeightDescendants()->contains(percentHeightDirectChild));

    RenderBlock* anonymousBlock = percentHeightInAnonymous->containingBlock();
    EXPECT_TRUE(anonymousBlock->isAnonymous());
    EXPECT_FALSE(anonymousBlock->hasPercentHeightDescendants());
}

TEST_F(WebFrameTest, HasVisibleContentOnVisibleFrames)
{
    registerMockedHttpURLLoad("visible_frames.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "visible_frames.html");
    for (WebFrame* frame = webViewImpl->mainFrameImpl()->traverseNext(false); frame; frame = frame->traverseNext(false)) {
        EXPECT_TRUE(frame->hasVisibleContent());
    }
}

TEST_F(WebFrameTest, HasVisibleContentOnHiddenFrames)
{
    registerMockedHttpURLLoad("hidden_frames.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    WebViewImpl* webViewImpl = webViewHelper.initializeAndLoad(m_baseURL + "hidden_frames.html");
    for (WebFrame* frame = webViewImpl->mainFrameImpl()->traverseNext(false); frame; frame = frame->traverseNext(false)) {
        EXPECT_FALSE(frame->hasVisibleContent());
    }
}

class ManifestChangeWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    ManifestChangeWebFrameClient() : m_manifestChangeCount(0) { }
    virtual void didChangeManifest(WebLocalFrame*) override
    {
        ++m_manifestChangeCount;
    }

    int manifestChangeCount() { return m_manifestChangeCount; }

private:
    int m_manifestChangeCount;
};

TEST_F(WebFrameTest, NotifyManifestChange)
{
    registerMockedHttpURLLoad("link-manifest-change.html");

    ManifestChangeWebFrameClient webFrameClient;
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "link-manifest-change.html", true, &webFrameClient);

    EXPECT_EQ(14, webFrameClient.manifestChangeCount());
}

static ResourcePtr<Resource> fetchManifest(Document* document, const KURL& url)
{
    FetchRequest fetchRequest = FetchRequest(ResourceRequest(url), FetchInitiatorInfo());
    fetchRequest.mutableResourceRequest().setRequestContext(WebURLRequest::RequestContextManifest);

    return document->fetcher()->fetchSynchronously(fetchRequest);
}

TEST_F(WebFrameTest, ManifestFetch)
{
    registerMockedHttpURLLoad("foo.html");
    registerMockedHttpURLLoad("link-manifest-fetch.json");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "foo.html");
    Document* document = toWebLocalFrameImpl(webViewHelper.webViewImpl()->mainFrame())->frame()->document();

    ResourcePtr<Resource> resource = fetchManifest(document, toKURL(m_baseURL + "link-manifest-fetch.json"));

    EXPECT_TRUE(resource->isLoaded());
}

TEST_F(WebFrameTest, ManifestCSPFetchAllow)
{
    URLTestHelpers::registerMockedURLLoad(toKURL(m_notBaseURL + "link-manifest-fetch.json"), "link-manifest-fetch.json");
    registerMockedHttpURLLoadWithCSP("foo.html", "manifest-src *");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "foo.html");
    Document* document = toWebLocalFrameImpl(webViewHelper.webViewImpl()->mainFrame())->frame()->document();

    ResourcePtr<Resource> resource = fetchManifest(document, toKURL(m_notBaseURL + "link-manifest-fetch.json"));

    EXPECT_TRUE(resource->isLoaded());
}

TEST_F(WebFrameTest, ManifestCSPFetchSelf)
{
    URLTestHelpers::registerMockedURLLoad(toKURL(m_notBaseURL + "link-manifest-fetch.json"), "link-manifest-fetch.json");
    registerMockedHttpURLLoadWithCSP("foo.html", "manifest-src 'self'");

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "foo.html");
    Document* document = toWebLocalFrameImpl(webViewHelper.webViewImpl()->mainFrame())->frame()->document();

    ResourcePtr<Resource> resource = fetchManifest(document, toKURL(m_notBaseURL + "link-manifest-fetch.json"));

    EXPECT_EQ(0, resource.get()); // Fetching resource wasn't allowed.
}

TEST_F(WebFrameTest, ManifestCSPFetchSelfReportOnly)
{
    URLTestHelpers::registerMockedURLLoad(toKURL(m_notBaseURL + "link-manifest-fetch.json"), "link-manifest-fetch.json");
    registerMockedHttpURLLoadWithCSP("foo.html", "manifest-src 'self'", /* report only */ true);

    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "foo.html");
    Document* document = toWebLocalFrameImpl(webViewHelper.webViewImpl()->mainFrame())->frame()->document();

    ResourcePtr<Resource> resource = fetchManifest(document, toKURL(m_notBaseURL + "link-manifest-fetch.json"));

    EXPECT_TRUE(resource->isLoaded());
}


TEST_F(WebFrameTest, ReloadBypassingCache)
{
    // Check that a reload ignoring cache on a frame will result in the cache
    // policy of the request being set to ReloadBypassingCache.
    registerMockedHttpURLLoad("foo.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad(m_baseURL + "foo.html", true);
    WebFrame* frame = webViewHelper.webView()->mainFrame();
    FrameTestHelpers::reloadFrameIgnoringCache(frame);
    EXPECT_EQ(WebURLRequest::ReloadBypassingCache, frame->dataSource()->request().cachePolicy());
}

static void nodeImageTestValidation(const IntSize& referenceBitmapSize, DragImage* dragImage)
{
    // Prepare the reference bitmap.
    SkBitmap bitmap;
    bitmap.allocN32Pixels(referenceBitmapSize.width(), referenceBitmapSize.height());
    SkCanvas canvas(bitmap);
    canvas.drawColor(SK_ColorGREEN);

    EXPECT_EQ(referenceBitmapSize.width(), dragImage->size().width());
    EXPECT_EQ(referenceBitmapSize.height(), dragImage->size().height());
    const SkBitmap& dragBitmap = dragImage->bitmap();
    SkAutoLockPixels lockPixel(dragBitmap);
    EXPECT_EQ(0, memcmp(bitmap.getPixels(), dragBitmap.getPixels(), bitmap.getSize()));
}

TEST_F(WebFrameTest, NodeImageTestCSSTransform)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    OwnPtr<DragImage> dragImage = nodeImageTestSetup(&webViewHelper, std::string("case-css-transform"));
    EXPECT_TRUE(dragImage);

    nodeImageTestValidation(IntSize(40, 40), dragImage.get());
}

TEST_F(WebFrameTest, NodeImageTestCSS3DTransform)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    OwnPtr<DragImage> dragImage = nodeImageTestSetup(&webViewHelper, std::string("case-css-3dtransform"));
    EXPECT_TRUE(dragImage);

    nodeImageTestValidation(IntSize(20, 40), dragImage.get());
}

TEST_F(WebFrameTest, NodeImageTestInlineBlock)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    OwnPtr<DragImage> dragImage = nodeImageTestSetup(&webViewHelper, std::string("case-inlineblock"));
    EXPECT_TRUE(dragImage);

    nodeImageTestValidation(IntSize(40, 40), dragImage.get());
}

TEST_F(WebFrameTest, NodeImageTestFloatLeft)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    OwnPtr<DragImage> dragImage = nodeImageTestSetup(&webViewHelper, std::string("case-float-left-overflow-hidden"));
    EXPECT_TRUE(dragImage);

    nodeImageTestValidation(IntSize(40, 40), dragImage.get());
}

// Crashes on Android: http://crbug.com/403804
#if OS(ANDROID)
TEST_F(WebFrameTest, DISABLED_PrintingBasic)
#else
TEST_F(WebFrameTest, PrintingBasic)
#endif
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("data:text/html,Hello, world.");

    WebFrame* frame = webViewHelper.webView()->mainFrame();

    WebPrintParams printParams;
    printParams.printContentArea.width = 500;
    printParams.printContentArea.height = 500;

    int pageCount = frame->printBegin(printParams);
    EXPECT_EQ(1, pageCount);
    frame->printEnd();
}

class ThemeColorTestWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    ThemeColorTestWebFrameClient()
        : m_didNotify(false)
    {
    }

    void reset()
    {
        m_didNotify = false;
    }

    bool didNotify() const
    {
        return m_didNotify;
    }

private:
    virtual void didChangeThemeColor()
    {
        m_didNotify = true;
    }

    bool m_didNotify;
};

TEST_F(WebFrameTest, ThemeColor)
{
    registerMockedHttpURLLoad("theme_color_test.html");
    FrameTestHelpers::WebViewHelper webViewHelper;
    ThemeColorTestWebFrameClient client;
    webViewHelper.initializeAndLoad(m_baseURL + "theme_color_test.html", true, &client);
    EXPECT_TRUE(client.didNotify());
    WebLocalFrameImpl* frame = webViewHelper.webViewImpl()->mainFrameImpl();
    EXPECT_EQ(0xff0000ff, frame->document().themeColor());
    // Change color by rgb.
    client.reset();
    frame->executeScript(WebScriptSource("document.getElementById('tc1').setAttribute('content', 'rgb(0, 0, 0)');"));
    EXPECT_TRUE(client.didNotify());
    EXPECT_EQ(0xff000000, frame->document().themeColor());
    // Change color by hsl.
    client.reset();
    frame->executeScript(WebScriptSource("document.getElementById('tc1').setAttribute('content', 'hsl(240,100%, 50%)');"));
    EXPECT_TRUE(client.didNotify());
    EXPECT_EQ(0xff0000ff, frame->document().themeColor());
    // Change of second theme-color meta tag will not change frame's theme
    // color.
    client.reset();
    frame->executeScript(WebScriptSource("document.getElementById('tc2').setAttribute('content', '#00FF00');"));
    EXPECT_TRUE(client.didNotify());
    EXPECT_EQ(0xff0000ff, frame->document().themeColor());
}

// Make sure that an embedder-triggered detach with a remote frame parent
// doesn't leave behind dangling pointers.
TEST_F(WebFrameTest, EmbedderTriggeredDetachWithRemoteMainFrame)
{
    // FIXME: Refactor some of this logic into WebViewHelper to make it easier to
    // write tests with a top-level remote frame.
    FrameTestHelpers::TestWebViewClient viewClient;
    FrameTestHelpers::TestWebRemoteFrameClient remoteClient;
    WebView* view = WebView::create(&viewClient);
    view->setMainFrame(WebRemoteFrame::create(&remoteClient));
    FrameTestHelpers::TestWebFrameClient childFrameClient;
    WebLocalFrame* childFrame = view->mainFrame()->toWebRemoteFrame()->createLocalChild("", &childFrameClient);

    // Purposely keep the LocalFrame alive so it's the last thing to be destroyed.
    RefPtrWillBePersistent<Frame> childCoreFrame = toCoreFrame(childFrame);
    view->close();
    childCoreFrame.clear();
}

class WebFrameSwapTest : public WebFrameTest {
protected:
    WebFrameSwapTest()
    {
        registerMockedHttpURLLoad("frame-a-b-c.html");
        registerMockedHttpURLLoad("subframe-a.html");
        registerMockedHttpURLLoad("subframe-b.html");
        registerMockedHttpURLLoad("subframe-c.html");
        registerMockedHttpURLLoad("subframe-hello.html");

        m_webViewHelper.initializeAndLoad(m_baseURL + "frame-a-b-c.html");
    }

    void reset() { m_webViewHelper.reset(); }
    WebFrame* mainFrame() const { return m_webViewHelper.webView()->mainFrame(); }

private:
    FrameTestHelpers::WebViewHelper m_webViewHelper;
};

TEST_F(WebFrameSwapTest, SwapMainFrame)
{
    WebFrame* remoteFrame = WebRemoteFrame::create(0);
    mainFrame()->swap(remoteFrame);

    FrameTestHelpers::TestWebFrameClient client;
    WebFrame* localFrame = WebLocalFrame::create(&client);
    remoteFrame->swap(localFrame);

    // Finally, make sure an embedder triggered load in the local frame swapped
    // back in works.
    FrameTestHelpers::loadFrame(localFrame, m_baseURL + "subframe-hello.html");
    std::string content = localFrame->contentAsText(1024).utf8();
    EXPECT_EQ("hello", content);

    // Manually reset to break WebViewHelper's dependency on the stack allocated
    // TestWebFrameClient.
    reset();
    remoteFrame->close();
}

void swapAndVerifyFirstChildConsistency(const char* const message, WebFrame* parent, WebFrame* newChild)
{
    SCOPED_TRACE(message);
    parent->firstChild()->swap(newChild);

    EXPECT_EQ(newChild, parent->firstChild());
    EXPECT_EQ(newChild->parent(), parent);
    EXPECT_EQ(newChild, parent->lastChild()->previousSibling()->previousSibling());
    EXPECT_EQ(newChild->nextSibling(), parent->lastChild()->previousSibling());
}

TEST_F(WebFrameSwapTest, SwapFirstChild)
{
    WebFrame* remoteFrame = WebRemoteFrame::create(0);
    swapAndVerifyFirstChildConsistency("local->remote", mainFrame(), remoteFrame);

    FrameTestHelpers::TestWebFrameClient client;
    WebFrame* localFrame = WebLocalFrame::create(&client);
    swapAndVerifyFirstChildConsistency("remote->local", mainFrame(), localFrame);

    // FIXME: This almost certainly fires more load events on the iframe element
    // than it should.
    // Finally, make sure an embedder triggered load in the local frame swapped
    // back in works.
    FrameTestHelpers::loadFrame(localFrame, m_baseURL + "subframe-hello.html");
    std::string content = localFrame->contentAsText(1024).utf8();
    EXPECT_EQ("hello", content);

    // Manually reset to break WebViewHelper's dependency on the stack allocated
    // TestWebFrameClient.
    reset();
    remoteFrame->close();
}

void swapAndVerifyMiddleChildConsistency(const char* const message, WebFrame* parent, WebFrame* newChild)
{
    SCOPED_TRACE(message);
    parent->firstChild()->nextSibling()->swap(newChild);

    EXPECT_EQ(newChild, parent->firstChild()->nextSibling());
    EXPECT_EQ(newChild, parent->lastChild()->previousSibling());
    EXPECT_EQ(newChild->parent(), parent);
    EXPECT_EQ(newChild, parent->firstChild()->nextSibling());
    EXPECT_EQ(newChild->previousSibling(), parent->firstChild());
    EXPECT_EQ(newChild, parent->lastChild()->previousSibling());
    EXPECT_EQ(newChild->nextSibling(), parent->lastChild());
}

TEST_F(WebFrameSwapTest, SwapMiddleChild)
{
    WebFrame* remoteFrame = WebRemoteFrame::create(0);
    swapAndVerifyMiddleChildConsistency("local->remote", mainFrame(), remoteFrame);

    FrameTestHelpers::TestWebFrameClient client;
    WebFrame* localFrame = WebLocalFrame::create(&client);
    swapAndVerifyMiddleChildConsistency("remote->local", mainFrame(), localFrame);

    // FIXME: This almost certainly fires more load events on the iframe element
    // than it should.
    // Finally, make sure an embedder triggered load in the local frame swapped
    // back in works.
    FrameTestHelpers::loadFrame(localFrame, m_baseURL + "subframe-hello.html");
    std::string content = localFrame->contentAsText(1024).utf8();
    EXPECT_EQ("hello", content);

    // Manually reset to break WebViewHelper's dependency on the stack allocated
    // TestWebFrameClient.
    reset();
    remoteFrame->close();
}

void swapAndVerifyLastChildConsistency(const char* const message, WebFrame* parent, WebFrame* newChild)
{
    SCOPED_TRACE(message);
    parent->lastChild()->swap(newChild);

    EXPECT_EQ(newChild, parent->lastChild());
    EXPECT_EQ(newChild->parent(), parent);
    EXPECT_EQ(newChild, parent->firstChild()->nextSibling()->nextSibling());
    EXPECT_EQ(newChild->previousSibling(), parent->firstChild()->nextSibling());
}

TEST_F(WebFrameSwapTest, SwapLastChild)
{
    WebFrame* remoteFrame = WebRemoteFrame::create(0);
    swapAndVerifyLastChildConsistency("local->remote", mainFrame(), remoteFrame);

    FrameTestHelpers::TestWebFrameClient client;
    WebFrame* localFrame = WebLocalFrame::create(&client);
    swapAndVerifyLastChildConsistency("remote->local", mainFrame(), localFrame);

    // FIXME: This almost certainly fires more load events on the iframe element
    // than it should.
    // Finally, make sure an embedder triggered load in the local frame swapped
    // back in works.
    FrameTestHelpers::loadFrame(localFrame, m_baseURL + "subframe-hello.html");
    std::string content = localFrame->contentAsText(1024).utf8();
    EXPECT_EQ("hello", content);

    // Manually reset to break WebViewHelper's dependency on the stack allocated
    // TestWebFrameClient.
    reset();
    remoteFrame->close();
}

void swapAndVerifySubframeConsistency(const char* const message, WebFrame* oldFrame, WebFrame* newFrame)
{
    SCOPED_TRACE(message);

    EXPECT_TRUE(oldFrame->firstChild());
    oldFrame->swap(newFrame);

    EXPECT_FALSE(newFrame->firstChild());
    EXPECT_FALSE(newFrame->lastChild());
}

TEST_F(WebFrameSwapTest, SwapParentShouldDetachChildren)
{
    WebRemoteFrame* remoteFrame = WebRemoteFrame::create(0);
    WebFrame* targetFrame = mainFrame()->firstChild()->nextSibling();
    EXPECT_TRUE(targetFrame);
    swapAndVerifySubframeConsistency("local->remote", targetFrame, remoteFrame);

    targetFrame = mainFrame()->firstChild()->nextSibling();
    EXPECT_TRUE(targetFrame);

    // Create child frames in the target frame before testing the swap.
    FrameTestHelpers::TestWebRemoteFrameClient remoteFrameClient;
    remoteFrame->createRemoteChild("", &remoteFrameClient);

    FrameTestHelpers::TestWebFrameClient client;
    WebFrame* localFrame = WebLocalFrame::create(&client);
    swapAndVerifySubframeConsistency("remote->local", targetFrame, localFrame);

    // FIXME: This almost certainly fires more load events on the iframe element
    // than it should.
    // Finally, make sure an embedder triggered load in the local frame swapped
    // back in works.
    FrameTestHelpers::loadFrame(localFrame, m_baseURL + "subframe-hello.html");
    std::string content = localFrame->contentAsText(1024).utf8();
    EXPECT_EQ("hello", content);

    // Manually reset to break WebViewHelper's dependency on the stack allocated
    // TestWebFrameClient.
    reset();
    remoteFrame->close();
}

class MockDocumentThreadableLoaderClient : public DocumentThreadableLoaderClient {
public:
    MockDocumentThreadableLoaderClient() : m_failed(false) { }
    virtual void didFail(const ResourceError&) override { m_failed = true;}

    void reset() { m_failed = false; }
    bool failed() { return m_failed; }

    bool m_failed;
};

// FIXME: This would be better as a unittest on DocumentThreadableLoader but it
// requires spin-up of a frame. It may be possible to remove that requirement
// and convert it to a unittest.
TEST_F(WebFrameTest, LoaderOriginAccess)
{
    FrameTestHelpers::WebViewHelper webViewHelper;
    webViewHelper.initializeAndLoad("about:blank");

    SchemeRegistry::registerURLSchemeAsDisplayIsolated("chrome");

    // Cross-origin request.
    KURL resourceUrl(ParsedURLString, "chrome://test.pdf");
    registerMockedChromeURLLoad("test.pdf");

    RefPtrWillBeRawPtr<LocalFrame> frame(toLocalFrame(webViewHelper.webViewImpl()->page()->mainFrame()));

    MockDocumentThreadableLoaderClient client;
    ThreadableLoaderOptions options;

    // First try to load the request with regular access. Should fail.
    options.crossOriginRequestPolicy = UseAccessControl;
    ResourceLoaderOptions resourceLoaderOptions;
    DocumentThreadableLoader::loadResourceSynchronously(
        *frame->document(), ResourceRequest(resourceUrl), client, options, resourceLoaderOptions);
    EXPECT_TRUE(client.failed());

    client.reset();
    // Try to load the request with cross origin access. Should succeed.
    options.crossOriginRequestPolicy = AllowCrossOriginRequests;
    DocumentThreadableLoader::loadResourceSynchronously(
        *frame->document(), ResourceRequest(resourceUrl), client, options, resourceLoaderOptions);
    EXPECT_FALSE(client.failed());
}

class NavigationTransitionCallbackWebFrameClient : public FrameTestHelpers::TestWebFrameClient {
public:
    NavigationTransitionCallbackWebFrameClient()
        : m_navigationalDataReceivedCount(0)
        , m_provisionalLoadCount(0)
        , m_wasLastProvisionalLoadATransition(false) { }

    virtual void addNavigationTransitionData(const WebString& allowedDestinationOrigin, const WebString& selector, const WebString& markup) override
    {
        m_navigationalDataReceivedCount++;
    }

    virtual void didStartProvisionalLoad(WebLocalFrame* localFrame, bool isTransitionNavigation) override
    {
        m_provisionalLoadCount++;
        m_wasLastProvisionalLoadATransition = isTransitionNavigation;
    }

    unsigned navigationalDataReceivedCount() const { return m_navigationalDataReceivedCount; }
    unsigned provisionalLoadCount() const { return m_provisionalLoadCount; }
    bool wasLastProvisionalLoadATransition() const { return m_wasLastProvisionalLoadATransition; }

private:
    unsigned m_navigationalDataReceivedCount;
    unsigned m_provisionalLoadCount;
    bool m_wasLastProvisionalLoadATransition;
};

TEST_F(WebFrameTest, NavigationTransitionCallbacks)
{
    RuntimeEnabledFeatures::setNavigationTransitionsEnabled(true);
    FrameTestHelpers::WebViewHelper viewHelper;
    NavigationTransitionCallbackWebFrameClient frameClient;
    WebLocalFrame* localFrame = viewHelper.initialize(true, &frameClient)->mainFrame()->toWebLocalFrame();

    const char* transitionHTMLString =
        "<!DOCTYPE html>"
        "<meta name='transition-elements' content='#foo;*'>"
        "<div id='foo'>";

    // Initial document load should not be a transition.
    FrameTestHelpers::loadHTMLString(localFrame, transitionHTMLString, toKURL("http://internal.test"));
    EXPECT_EQ(1u, frameClient.provisionalLoadCount());
    EXPECT_FALSE(frameClient.wasLastProvisionalLoadATransition());
    EXPECT_EQ(0u, frameClient.navigationalDataReceivedCount());

    // Going from internal.test containing transition elements to about:blank, should be a transition.
    FrameTestHelpers::loadHTMLString(localFrame, transitionHTMLString, toKURL("about:blank"));
    EXPECT_EQ(2u, frameClient.provisionalLoadCount());
    EXPECT_TRUE(frameClient.wasLastProvisionalLoadATransition());
    EXPECT_EQ(1u, frameClient.navigationalDataReceivedCount());

    // Navigating to the URL of the current page shouldn't be a transition.
    FrameTestHelpers::loadHTMLString(localFrame, transitionHTMLString, toKURL("about:blank"));
    EXPECT_EQ(3u, frameClient.provisionalLoadCount());
    EXPECT_FALSE(frameClient.wasLastProvisionalLoadATransition());
    EXPECT_EQ(1u, frameClient.navigationalDataReceivedCount());

    // Neither should a page reload.
    localFrame->reload();
    EXPECT_EQ(4u, frameClient.provisionalLoadCount());
    EXPECT_FALSE(frameClient.wasLastProvisionalLoadATransition());
    EXPECT_EQ(1u, frameClient.navigationalDataReceivedCount());
}

} // namespace