blob: b5fe67e978efc28ea622d72690e94bed731f7d1b [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <map>
#include <set>
#include <string>
#include "base/compiler_specific.h"
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "base/process/process.h"
#include "base/values.h"
#include "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/navigation_controller_delegate.h"
#include "content/browser/frame_host/navigation_controller_impl.h"
#include "content/browser/frame_host/navigator_delegate.h"
#include "content/browser/frame_host/render_frame_host_delegate.h"
#include "content/browser/frame_host/render_frame_host_manager.h"
#include "content/browser/renderer_host/render_view_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/common/accessibility_mode_enums.h"
#include "content/common/content_export.h"
#include "content/public/browser/color_chooser.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/page_transition_types.h"
#include "content/public/common/renderer_preferences.h"
#include "content/public/common/resource_type.h"
#include "content/public/common/three_d_api_types.h"
#include "net/base/load_states.h"
#include "net/http/http_response_headers.h"
#include "third_party/WebKit/public/web/WebDragOperation.h"
#include "ui/gfx/rect_f.h"
#include "ui/gfx/size.h"
struct BrowserPluginHostMsg_ResizeGuest_Params;
struct ViewHostMsg_DateTimeDialogValue_Params;
struct ViewMsg_PostMessage_Params;
namespace content {
class BrowserPluginEmbedder;
class BrowserPluginGuest;
class BrowserPluginGuestManager;
class DateTimeChooserAndroid;
class DownloadItem;
class GeolocationDispatcherHost;
class InterstitialPageImpl;
class JavaScriptDialogManager;
class MidiDispatcherHost;
class PowerSaveBlocker;
class RenderViewHost;
class RenderViewHostDelegateView;
class RenderViewHostImpl;
class RenderWidgetHostImpl;
class SavePackage;
class ScreenOrientationDispatcherHost;
class SiteInstance;
class TestWebContents;
class WebContentsDelegate;
class WebContentsImpl;
class WebContentsObserver;
class WebContentsView;
class WebContentsViewDelegate;
struct AXEventNotificationDetails;
struct ColorSuggestion;
struct FaviconURL;
struct LoadNotificationDetails;
struct ResourceRedirectDetails;
struct ResourceRequestDetails;
#if defined(OS_ANDROID)
class WebContentsAndroid;
// Factory function for the implementations that content knows about. Takes
// ownership of |delegate|.
WebContentsView* CreateWebContentsView(
WebContentsImpl* web_contents,
WebContentsViewDelegate* delegate,
RenderViewHostDelegateView** render_view_host_delegate_view);
class CONTENT_EXPORT WebContentsImpl
: public NON_EXPORTED_BASE(WebContents),
public NON_EXPORTED_BASE(RenderFrameHostDelegate),
public RenderViewHostDelegate,
public RenderWidgetHostDelegate,
public RenderFrameHostManager::Delegate,
public NotificationObserver,
public NON_EXPORTED_BASE(NavigationControllerDelegate),
public NON_EXPORTED_BASE(NavigatorDelegate) {
virtual ~WebContentsImpl();
static WebContentsImpl* CreateWithOpener(
const WebContents::CreateParams& params,
WebContentsImpl* opener);
static std::vector<WebContentsImpl*> GetAllWebContents();
// Returns the opener WebContentsImpl, if any. This can be set to null if the
// opener is closed or the page clears its window.opener.
WebContentsImpl* opener() const { return opener_; }
// Creates a swapped out RenderView. This is used by the browser plugin to
// create a swapped out RenderView in the embedder render process for the
// guest, to expose the guest's window object to the embedder.
// This returns the routing ID of the newly created swapped out RenderView.
int CreateSwappedOutRenderView(SiteInstance* instance);
// Complex initialization here. Specifically needed to avoid having
// members call back into our virtual functions in the constructor.
virtual void Init(const WebContents::CreateParams& params);
// Returns the SavePackage which manages the page saving job. May be NULL.
SavePackage* save_package() const { return save_package_.get(); }
#if defined(OS_ANDROID)
// In Android WebView, the RenderView needs created even there is no
// navigation entry, this allows Android WebViews to use
// javascript: URLs that load into the DOMWindow before the first page
// load. This is not safe to do in any context that a web page could get a
// reference to the DOMWindow before the first page load.
bool CreateRenderViewForInitialEmptyDocument();
// Expose the render manager for testing.
// TODO(creis): Remove this now that we can get to it via FrameTreeNode.
RenderFrameHostManager* GetRenderManagerForTesting();
// Returns guest browser plugin object, or NULL if this WebContents is not a
// guest.
BrowserPluginGuest* GetBrowserPluginGuest() const;
// Sets a BrowserPluginGuest object for this WebContents. If this WebContents
// has a BrowserPluginGuest then that implies that it is being hosted by
// a BrowserPlugin object in an embedder renderer process.
void SetBrowserPluginGuest(BrowserPluginGuest* guest);
// Returns embedder browser plugin object, or NULL if this WebContents is not
// an embedder.
BrowserPluginEmbedder* GetBrowserPluginEmbedder() const;
// Gets the current fullscreen render widget's routing ID. Returns
// MSG_ROUTING_NONE when there is no fullscreen render widget.
int GetFullscreenWidgetRoutingID() const;
// Invoked when visible SSL state (as defined by SSLStatus) changes.
void DidChangeVisibleSSLState();
// Informs the render view host and the BrowserPluginEmbedder, if present, of
// a Drag Source End.
void DragSourceEndedAt(int client_x, int client_y, int screen_x,
int screen_y, blink::WebDragOperation operation);
// A response has been received for a resource request.
void DidGetResourceResponseStart(
const ResourceRequestDetails& details);
// A redirect was received while requesting a resource.
void DidGetRedirectForResourceRequest(
RenderViewHost* render_view_host,
const ResourceRedirectDetails& details);
WebContentsView* GetView() const;
GeolocationDispatcherHost* geolocation_dispatcher_host() {
return geolocation_dispatcher_host_.get();
ScreenOrientationDispatcherHost* screen_orientation_dispatcher_host() {
return screen_orientation_dispatcher_host_.get();
bool should_normally_be_visible() { return should_normally_be_visible_; }
// Broadcasts the mode change to all frames.
void SetAccessibilityMode(AccessibilityMode mode);
// Adds the given accessibility mode to the current accessibility mode
// bitmap.
void AddAccessibilityMode(AccessibilityMode mode);
// Removes the given accessibility mode from the current accessibility
// mode bitmap, managing the bits that are shared with other modes such
// that a bit will only be turned off when all modes that depend on it
// have been removed.
void RemoveAccessibilityMode(AccessibilityMode mode);
// WebContents ------------------------------------------------------
virtual WebContentsDelegate* GetDelegate() OVERRIDE;
virtual void SetDelegate(WebContentsDelegate* delegate) OVERRIDE;
virtual NavigationControllerImpl& GetController() OVERRIDE;
virtual const NavigationControllerImpl& GetController() const OVERRIDE;
virtual BrowserContext* GetBrowserContext() const OVERRIDE;
virtual const GURL& GetURL() const OVERRIDE;
virtual const GURL& GetVisibleURL() const OVERRIDE;
virtual const GURL& GetLastCommittedURL() const OVERRIDE;
virtual RenderProcessHost* GetRenderProcessHost() const OVERRIDE;
virtual RenderFrameHost* GetMainFrame() OVERRIDE;
virtual RenderFrameHost* GetFocusedFrame() OVERRIDE;
virtual void ForEachFrame(
const base::Callback<void(RenderFrameHost*)>& on_frame) OVERRIDE;
virtual void SendToAllFrames(IPC::Message* message) OVERRIDE;
virtual RenderViewHost* GetRenderViewHost() const OVERRIDE;
virtual int GetRoutingID() const OVERRIDE;
virtual RenderWidgetHostView* GetRenderWidgetHostView() const OVERRIDE;
virtual RenderWidgetHostView* GetFullscreenRenderWidgetHostView() const
virtual WebUI* CreateWebUI(const GURL& url) OVERRIDE;
virtual WebUI* GetWebUI() const OVERRIDE;
virtual WebUI* GetCommittedWebUI() const OVERRIDE;
virtual void SetUserAgentOverride(const std::string& override) OVERRIDE;
virtual const std::string& GetUserAgentOverride() const OVERRIDE;
virtual void EnableTreeOnlyAccessibilityMode() OVERRIDE;
virtual bool IsTreeOnlyAccessibilityModeForTesting() const OVERRIDE;
virtual bool IsFullAccessibilityModeForTesting() const OVERRIDE;
#if defined(OS_WIN)
virtual void SetParentNativeViewAccessible(
gfx::NativeViewAccessible accessible_parent) OVERRIDE;
virtual const base::string16& GetTitle() const OVERRIDE;
virtual int32 GetMaxPageID() OVERRIDE;
virtual int32 GetMaxPageIDForSiteInstance(
SiteInstance* site_instance) OVERRIDE;
virtual SiteInstance* GetSiteInstance() const OVERRIDE;
virtual SiteInstance* GetPendingSiteInstance() const OVERRIDE;
virtual bool IsLoading() const OVERRIDE;
virtual bool IsLoadingToDifferentDocument() const OVERRIDE;
virtual bool IsWaitingForResponse() const OVERRIDE;
virtual const net::LoadStateWithParam& GetLoadState() const OVERRIDE;
virtual const base::string16& GetLoadStateHost() const OVERRIDE;
virtual uint64 GetUploadSize() const OVERRIDE;
virtual uint64 GetUploadPosition() const OVERRIDE;
virtual std::set<GURL> GetSitesInTab() const OVERRIDE;
virtual const std::string& GetEncoding() const OVERRIDE;
virtual bool DisplayedInsecureContent() const OVERRIDE;
virtual void IncrementCapturerCount(const gfx::Size& capture_size) OVERRIDE;
virtual void DecrementCapturerCount() OVERRIDE;
virtual int GetCapturerCount() const OVERRIDE;
virtual bool IsCrashed() const OVERRIDE;
virtual void SetIsCrashed(base::TerminationStatus status,
int error_code) OVERRIDE;
virtual base::TerminationStatus GetCrashedStatus() const OVERRIDE;
virtual bool IsBeingDestroyed() const OVERRIDE;
virtual void NotifyNavigationStateChanged(
InvalidateTypes changed_flags) OVERRIDE;
virtual base::TimeTicks GetLastActiveTime() const OVERRIDE;
virtual void WasShown() OVERRIDE;
virtual void WasHidden() OVERRIDE;
virtual bool NeedToFireBeforeUnload() OVERRIDE;
virtual void DispatchBeforeUnload(bool for_cross_site_transition) OVERRIDE;
virtual void Stop() OVERRIDE;
virtual WebContents* Clone() OVERRIDE;
virtual void ReloadFocusedFrame(bool ignore_cache) OVERRIDE;
virtual void Undo() OVERRIDE;
virtual void Redo() OVERRIDE;
virtual void Cut() OVERRIDE;
virtual void Copy() OVERRIDE;
virtual void CopyToFindPboard() OVERRIDE;
virtual void Paste() OVERRIDE;
virtual void PasteAndMatchStyle() OVERRIDE;
virtual void Delete() OVERRIDE;
virtual void SelectAll() OVERRIDE;
virtual void Unselect() OVERRIDE;
virtual void Replace(const base::string16& word) OVERRIDE;
virtual void ReplaceMisspelling(const base::string16& word) OVERRIDE;
virtual void NotifyContextMenuClosed(
const CustomContextMenuContext& context) OVERRIDE;
virtual void ExecuteCustomContextMenuCommand(
int action, const CustomContextMenuContext& context) OVERRIDE;
virtual gfx::NativeView GetNativeView() OVERRIDE;
virtual gfx::NativeView GetContentNativeView() OVERRIDE;
virtual gfx::NativeWindow GetTopLevelNativeWindow() OVERRIDE;
virtual gfx::Rect GetContainerBounds() OVERRIDE;
virtual gfx::Rect GetViewBounds() OVERRIDE;
virtual DropData* GetDropData() OVERRIDE;
virtual void Focus() OVERRIDE;
virtual void SetInitialFocus() OVERRIDE;
virtual void StoreFocus() OVERRIDE;
virtual void RestoreFocus() OVERRIDE;
virtual void FocusThroughTabTraversal(bool reverse) OVERRIDE;
virtual bool ShowingInterstitialPage() const OVERRIDE;
virtual InterstitialPage* GetInterstitialPage() const OVERRIDE;
virtual bool IsSavable() OVERRIDE;
virtual void OnSavePage() OVERRIDE;
virtual bool SavePage(const base::FilePath& main_file,
const base::FilePath& dir_path,
SavePageType save_type) OVERRIDE;
virtual void SaveFrame(const GURL& url,
const Referrer& referrer) OVERRIDE;
virtual void GenerateMHTML(
const base::FilePath& file,
const base::Callback<void(int64)>& callback)
virtual const std::string& GetContentsMimeType() const OVERRIDE;
virtual bool WillNotifyDisconnection() const OVERRIDE;
virtual void SetOverrideEncoding(const std::string& encoding) OVERRIDE;
virtual void ResetOverrideEncoding() OVERRIDE;
virtual RendererPreferences* GetMutableRendererPrefs() OVERRIDE;
virtual void Close() OVERRIDE;
virtual void SystemDragEnded() OVERRIDE;
virtual void UserGestureDone() OVERRIDE;
virtual void SetClosedByUserGesture(bool value) OVERRIDE;
virtual bool GetClosedByUserGesture() const OVERRIDE;
virtual void ViewSource() OVERRIDE;
virtual void ViewFrameSource(const GURL& url,
const PageState& page_state) OVERRIDE;
virtual int GetMinimumZoomPercent() const OVERRIDE;
virtual int GetMaximumZoomPercent() const OVERRIDE;
virtual gfx::Size GetPreferredSize() const OVERRIDE;
virtual bool GotResponseToLockMouseRequest(bool allowed) OVERRIDE;
virtual bool HasOpener() const OVERRIDE;
virtual void DidChooseColorInColorChooser(SkColor color) OVERRIDE;
virtual void DidEndColorChooser() OVERRIDE;
virtual int DownloadImage(const GURL& url,
bool is_favicon,
uint32_t max_bitmap_size,
const ImageDownloadCallback& callback) OVERRIDE;
virtual bool IsSubframe() const OVERRIDE;
virtual void Find(int request_id,
const base::string16& search_text,
const blink::WebFindOptions& options) OVERRIDE;
virtual void StopFinding(StopFindAction action) OVERRIDE;
virtual void InsertCSS(const std::string& css) OVERRIDE;
#if defined(OS_ANDROID)
virtual base::android::ScopedJavaLocalRef<jobject> GetJavaWebContents()
virtual WebContentsAndroid* GetWebContentsAndroid();
#elif defined(OS_MACOSX)
virtual void SetAllowOverlappingViews(bool overlapping) OVERRIDE;
virtual bool GetAllowOverlappingViews() OVERRIDE;
virtual void SetAllowOtherViews(bool allow) OVERRIDE;
virtual bool GetAllowOtherViews() OVERRIDE;
// Implementation of PageNavigator.
virtual WebContents* OpenURL(const OpenURLParams& params) OVERRIDE;
// Implementation of IPC::Sender.
virtual bool Send(IPC::Message* message) OVERRIDE;
// RenderFrameHostDelegate ---------------------------------------------------
virtual bool OnMessageReceived(RenderFrameHost* render_frame_host,
const IPC::Message& message) OVERRIDE;
virtual const GURL& GetMainFrameLastCommittedURL() const OVERRIDE;
virtual void RenderFrameCreated(RenderFrameHost* render_frame_host) OVERRIDE;
virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) OVERRIDE;
virtual void DidStartLoading(RenderFrameHost* render_frame_host,
bool to_different_document) OVERRIDE;
virtual void SwappedOut(RenderFrameHost* render_frame_host) OVERRIDE;
virtual void DidDeferAfterResponseStarted(
const TransitionLayerData& transition_data) OVERRIDE;
virtual bool WillHandleDeferAfterResponseStarted() OVERRIDE;
virtual void WorkerCrashed(RenderFrameHost* render_frame_host) OVERRIDE;
virtual void ShowContextMenu(RenderFrameHost* render_frame_host,
const ContextMenuParams& params) OVERRIDE;
virtual void RunJavaScriptMessage(RenderFrameHost* render_frame_host,
const base::string16& message,
const base::string16& default_prompt,
const GURL& frame_url,
JavaScriptMessageType type,
IPC::Message* reply_msg) OVERRIDE;
virtual void RunBeforeUnloadConfirm(RenderFrameHost* render_frame_host,
const base::string16& message,
bool is_reload,
IPC::Message* reply_msg) OVERRIDE;
virtual void DidAccessInitialDocument() OVERRIDE;
virtual void DidDisownOpener(RenderFrameHost* render_frame_host) OVERRIDE;
virtual void DocumentOnLoadCompleted(
RenderFrameHost* render_frame_host) OVERRIDE;
virtual void UpdateTitle(RenderFrameHost* render_frame_host,
int32 page_id,
const base::string16& title,
base::i18n::TextDirection title_direction) OVERRIDE;
virtual void UpdateEncoding(RenderFrameHost* render_frame_host,
const std::string& encoding) OVERRIDE;
virtual WebContents* GetAsWebContents() OVERRIDE;
virtual bool IsNeverVisible() OVERRIDE;
virtual AccessibilityMode GetAccessibilityMode() const OVERRIDE;
virtual void AccessibilityEventReceived(
const std::vector<AXEventNotificationDetails>& details) OVERRIDE;
#if defined(OS_WIN)
virtual gfx::NativeViewAccessible GetParentNativeViewAccessible() OVERRIDE;
// RenderViewHostDelegate ----------------------------------------------------
virtual RenderViewHostDelegateView* GetDelegateView() OVERRIDE;
virtual bool OnMessageReceived(RenderViewHost* render_view_host,
const IPC::Message& message) OVERRIDE;
// RenderFrameHostDelegate has the same method, so list it there because this
// interface is going away.
// virtual WebContents* GetAsWebContents() OVERRIDE;
virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE;
virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewReady(RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewTerminated(RenderViewHost* render_view_host,
base::TerminationStatus status,
int error_code) OVERRIDE;
virtual void RenderViewDeleted(RenderViewHost* render_view_host) OVERRIDE;
virtual void UpdateState(RenderViewHost* render_view_host,
int32 page_id,
const PageState& page_state) OVERRIDE;
virtual void UpdateTargetURL(int32 page_id, const GURL& url) OVERRIDE;
virtual void Close(RenderViewHost* render_view_host) OVERRIDE;
virtual void RequestMove(const gfx::Rect& new_bounds) OVERRIDE;
virtual void DidCancelLoading() OVERRIDE;
virtual void DocumentAvailableInMainFrame(
RenderViewHost* render_view_host) OVERRIDE;
virtual void RouteCloseEvent(RenderViewHost* rvh) OVERRIDE;
virtual void RouteMessageEvent(
RenderViewHost* rvh,
const ViewMsg_PostMessage_Params& params) OVERRIDE;
virtual bool AddMessageToConsole(int32 level,
const base::string16& message,
int32 line_no,
const base::string16& source_id) OVERRIDE;
virtual RendererPreferences GetRendererPrefs(
BrowserContext* browser_context) const OVERRIDE;
virtual WebPreferences ComputeWebkitPrefs() OVERRIDE;
virtual void OnUserGesture() OVERRIDE;
virtual void OnIgnoredUIEvent() OVERRIDE;
virtual void RendererUnresponsive(RenderViewHost* render_view_host,
bool is_during_beforeunload,
bool is_during_unload) OVERRIDE;
virtual void RendererResponsive(RenderViewHost* render_view_host) OVERRIDE;
virtual void LoadStateChanged(const GURL& url,
const net::LoadStateWithParam& load_state,
uint64 upload_position,
uint64 upload_size) OVERRIDE;
virtual void Activate() OVERRIDE;
virtual void Deactivate() OVERRIDE;
virtual void LostCapture() OVERRIDE;
virtual void HandleMouseDown() OVERRIDE;
virtual void HandleMouseUp() OVERRIDE;
virtual void HandlePointerActivate() OVERRIDE;
virtual void HandleGestureBegin() OVERRIDE;
virtual void HandleGestureEnd() OVERRIDE;
virtual void RunFileChooser(
RenderViewHost* render_view_host,
const FileChooserParams& params) OVERRIDE;
virtual void ToggleFullscreenMode(bool enter_fullscreen) OVERRIDE;
virtual bool IsFullscreenForCurrentTab() const OVERRIDE;
virtual void UpdatePreferredSize(const gfx::Size& pref_size) OVERRIDE;
virtual void ResizeDueToAutoResize(const gfx::Size& new_size) OVERRIDE;
virtual void RequestToLockMouse(bool user_gesture,
bool last_unlocked_by_target) OVERRIDE;
virtual void LostMouseLock() OVERRIDE;
virtual void CreateNewWindow(
int render_process_id,
int route_id,
int main_frame_route_id,
const ViewHostMsg_CreateWindow_Params& params,
SessionStorageNamespace* session_storage_namespace) OVERRIDE;
virtual void CreateNewWidget(int render_process_id,
int route_id,
blink::WebPopupType popup_type) OVERRIDE;
virtual void CreateNewFullscreenWidget(int render_process_id,
int route_id) OVERRIDE;
virtual void ShowCreatedWindow(int route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture) OVERRIDE;
virtual void ShowCreatedWidget(int route_id,
const gfx::Rect& initial_pos) OVERRIDE;
virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE;
virtual void RequestMediaAccessPermission(
const MediaStreamRequest& request,
const MediaResponseCallback& callback) OVERRIDE;
virtual SessionStorageNamespace* GetSessionStorageNamespace(
SiteInstance* instance) OVERRIDE;
virtual SessionStorageNamespaceMap GetSessionStorageNamespaceMap() OVERRIDE;
virtual FrameTree* GetFrameTree() OVERRIDE;
// NavigatorDelegate ---------------------------------------------------------
virtual void DidStartProvisionalLoad(
RenderFrameHostImpl* render_frame_host,
const GURL& validated_url,
bool is_error_page,
bool is_iframe_srcdoc) OVERRIDE;
virtual void DidStartNavigationTransition(
RenderFrameHostImpl* render_frame_host) OVERRIDE;
virtual void DidFailProvisionalLoadWithError(
RenderFrameHostImpl* render_frame_host,
const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params)
virtual void DidFailLoadWithError(
RenderFrameHostImpl* render_frame_host,
const GURL& url,
int error_code,
const base::string16& error_description) OVERRIDE;
virtual void DidRedirectProvisionalLoad(
RenderFrameHostImpl* render_frame_host,
const GURL& validated_target_url) OVERRIDE;
virtual void DidCommitProvisionalLoad(
RenderFrameHostImpl* render_frame_host,
const GURL& url,
PageTransition transition_type) OVERRIDE;
virtual void DidNavigateMainFramePreCommit(
bool navigation_is_within_page) OVERRIDE;
virtual void DidNavigateMainFramePostCommit(
const LoadCommittedDetails& details,
const FrameHostMsg_DidCommitProvisionalLoad_Params& params) OVERRIDE;
virtual void DidNavigateAnyFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details,
const FrameHostMsg_DidCommitProvisionalLoad_Params& params) OVERRIDE;
virtual void SetMainFrameMimeType(const std::string& mime_type) OVERRIDE;
virtual bool CanOverscrollContent() const OVERRIDE;
virtual void NotifyChangedNavigationState(
InvalidateTypes changed_flags) OVERRIDE;
virtual void AboutToNavigateRenderFrame(
RenderFrameHostImpl* render_frame_host) OVERRIDE;
virtual void DidStartNavigationToPendingEntry(
RenderFrameHostImpl* render_frame_host,
const GURL& url,
NavigationController::ReloadType reload_type) OVERRIDE;
virtual void RequestOpenURL(RenderFrameHostImpl* render_frame_host,
const OpenURLParams& params) OVERRIDE;
virtual bool ShouldPreserveAbortedURLs() OVERRIDE;
// RenderWidgetHostDelegate --------------------------------------------------
virtual void RenderWidgetDeleted(
RenderWidgetHostImpl* render_widget_host) OVERRIDE;
virtual bool PreHandleKeyboardEvent(
const NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) OVERRIDE;
virtual void HandleKeyboardEvent(
const NativeWebKeyboardEvent& event) OVERRIDE;
virtual bool HandleWheelEvent(
const blink::WebMouseWheelEvent& event) OVERRIDE;
virtual bool PreHandleGestureEvent(
const blink::WebGestureEvent& event) OVERRIDE;
virtual bool HandleGestureEvent(
const blink::WebGestureEvent& event) OVERRIDE;
virtual void DidSendScreenRects(RenderWidgetHostImpl* rwh) OVERRIDE;
virtual void OnTouchEmulationEnabled(bool enabled) OVERRIDE;
virtual BrowserAccessibilityManager* GetRootBrowserAccessibilityManager()
virtual BrowserAccessibilityManager*
GetOrCreateRootBrowserAccessibilityManager() OVERRIDE;
// RenderFrameHostManager::Delegate ------------------------------------------
virtual bool CreateRenderViewForRenderManager(
RenderViewHost* render_view_host,
int opener_route_id,
int proxy_routing_id,
bool for_main_frame_navigation) OVERRIDE;
virtual bool CreateRenderFrameForRenderManager(
RenderFrameHost* render_frame_host,
int parent_routing_id) OVERRIDE;
virtual void BeforeUnloadFiredFromRenderManager(
bool proceed, const base::TimeTicks& proceed_time,
bool* proceed_to_fire_unload) OVERRIDE;
virtual void RenderProcessGoneFromRenderManager(
RenderViewHost* render_view_host) OVERRIDE;
virtual void UpdateRenderViewSizeForRenderManager() OVERRIDE;
virtual void CancelModalDialogsForRenderManager() OVERRIDE;
virtual void NotifySwappedFromRenderManager(RenderFrameHost* old_host,
RenderFrameHost* new_host,
bool is_main_frame) OVERRIDE;
virtual int CreateOpenerRenderViewsForRenderManager(
SiteInstance* instance) OVERRIDE;
virtual NavigationControllerImpl&
GetControllerForRenderManager() OVERRIDE;
virtual WebUIImpl* CreateWebUIForRenderManager(const GURL& url) OVERRIDE;
virtual NavigationEntry*
GetLastCommittedNavigationEntryForRenderManager() OVERRIDE;
virtual bool FocusLocationBarByDefault() OVERRIDE;
virtual void SetFocusToLocationBar(bool select_all) OVERRIDE;
virtual void CreateViewAndSetSizeForRVH(RenderViewHost* rvh) OVERRIDE;
virtual bool IsHidden() OVERRIDE;
// NotificationObserver ------------------------------------------------------
virtual void Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) OVERRIDE;
// NavigationControllerDelegate ----------------------------------------------
virtual WebContents* GetWebContents() OVERRIDE;
virtual void NotifyNavigationEntryCommitted(
const LoadCommittedDetails& load_details) OVERRIDE;
// Invoked before a form repost warning is shown.
virtual void NotifyBeforeFormRepostWarningShow() OVERRIDE;
// Activate this WebContents and show a form repost warning.
virtual void ActivateAndShowRepostFormWarningDialog() OVERRIDE;
// Whether the initial empty page of this view has been accessed by another
// page, making it unsafe to show the pending URL. Always false after the
// first commit.
virtual bool HasAccessedInitialDocument() OVERRIDE;
// Updates the max page ID for the current SiteInstance in this
// WebContentsImpl to be at least |page_id|.
virtual void UpdateMaxPageID(int32 page_id) OVERRIDE;
// Updates the max page ID for the given SiteInstance in this WebContentsImpl
// to be at least |page_id|.
virtual void UpdateMaxPageIDForSiteInstance(SiteInstance* site_instance,
int32 page_id) OVERRIDE;
// Copy the current map of SiteInstance ID to max page ID from another tab.
// This is necessary when this tab adopts the NavigationEntries from
// |web_contents|.
virtual void CopyMaxPageIDsFrom(WebContents* web_contents) OVERRIDE;
// Called by the NavigationController to cause the WebContentsImpl to navigate
// to the current pending entry. The NavigationController should be called
// back with RendererDidNavigate on success or DiscardPendingEntry on failure.
// The callbacks can be inside of this function, or at some future time.
// The entry has a PageID of -1 if newly created (corresponding to navigation
// to a new URL).
// If this method returns false, then the navigation is discarded (equivalent
// to calling DiscardPendingEntry on the NavigationController).
virtual bool NavigateToPendingEntry(
NavigationController::ReloadType reload_type) OVERRIDE;
// Sets the history for this WebContentsImpl to |history_length| entries, and
// moves the current page_id to the last entry in the list if it's valid.
// This is mainly used when a prerendered page is swapped into the current
// tab. The method is virtual for testing.
virtual void SetHistoryLengthAndPrune(
const SiteInstance* site_instance,
int merge_history_length,
int32 minimum_page_id) OVERRIDE;
// Called by InterstitialPageImpl when it creates a RenderFrameHost.
virtual void RenderFrameForInterstitialPageCreated(
RenderFrameHost* render_frame_host) OVERRIDE;
// Sets the passed interstitial as the currently showing interstitial.
// No interstitial page should already be attached.
virtual void AttachInterstitialPage(
InterstitialPageImpl* interstitial_page) OVERRIDE;
// Unsets the currently showing interstitial.
virtual void DetachInterstitialPage() OVERRIDE;
// Changes the IsLoading state and notifies the delegate as needed.
// |details| is used to provide details on the load that just finished
// (but can be null if not applicable).
virtual void SetIsLoading(RenderViewHost* render_view_host,
bool is_loading,
bool to_different_document,
LoadNotificationDetails* details) OVERRIDE;
typedef base::Callback<void(WebContents*)> CreatedCallback;
// Requests the renderer to select the region between two points in the
// currently focused frame.
void SelectRange(const gfx::Point& start, const gfx::Point& end);
// Notifies the main frame that it can continue navigation (if it was deferred
// immediately at first response).
void ResumeResponseDeferredAtStart();
friend class TestNavigationObserver;
friend class WebContentsAddedObserver;
friend class WebContentsObserver;
friend class WebContents; // To implement factory methods.
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, NoJSMessageOnInterstitials);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, UpdateTitle);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FindOpenerRVHWhenPending);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, PendingContents);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, FrameTreeShape);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, GetLastActiveTime);
FRIEND_TEST_ALL_PREFIXES(FormStructureBrowserTest, HTMLFiles);
FRIEND_TEST_ALL_PREFIXES(NavigationControllerTest, HistoryNavigate);
FRIEND_TEST_ALL_PREFIXES(RenderFrameHostManagerTest, PageDoesBackAndReload);
FRIEND_TEST_ALL_PREFIXES(SitePerProcessBrowserTest, CrossSiteIframe);
// So InterstitialPageImpl can access SetIsLoading.
friend class InterstitialPageImpl;
// TODO(brettw) TestWebContents shouldn't exist!
friend class TestWebContents;
class DestructionObserver;
// See WebContents::Create for a description of these parameters.
WebContentsImpl(BrowserContext* browser_context,
WebContentsImpl* opener);
// Add and remove observers for page navigation notifications. The order in
// which notifications are sent to observers is undefined. Clients must be
// sure to remove the observer before they go away.
void AddObserver(WebContentsObserver* observer);
void RemoveObserver(WebContentsObserver* observer);
// Clears this tab's opener if it has been closed.
void OnWebContentsDestroyed(WebContentsImpl* web_contents);
// Creates and adds to the map a destruction observer watching |web_contents|.
// No-op if such an observer already exists.
void AddDestructionObserver(WebContentsImpl* web_contents);
// Deletes and removes from the map a destruction observer
// watching |web_contents|. No-op if there is no such observer.
void RemoveDestructionObserver(WebContentsImpl* web_contents);
// Traverses all the RenderFrameHosts in the FrameTree and creates a set
// all the unique RenderWidgetHostViews.
std::set<RenderWidgetHostView*> GetRenderWidgetHostViewsInTree();
// Callback function when showing JavaScript dialogs. Takes in a routing ID
// pair to identify the RenderFrameHost that opened the dialog, because it's
// possible for the RenderFrameHost to be deleted by the time this is called.
void OnDialogClosed(int render_process_id,
int render_frame_id,
IPC::Message* reply_msg,
bool dialog_was_suppressed,
bool success,
const base::string16& user_input);
// Callback function when requesting permission to access the PPAPI broker.
// |result| is true if permission was granted.
void OnPpapiBrokerPermissionResult(int routing_id, bool result);
bool OnMessageReceived(RenderViewHost* render_view_host,
RenderFrameHost* render_frame_host,
const IPC::Message& message);
// IPC message handlers.
void OnThemeColorChanged(SkColor theme_color);
void OnDidLoadResourceFromMemoryCache(const GURL& url,
const std::string& security_info,
const std::string& http_request,
const std::string& mime_type,
ResourceType resource_type);
void OnDidDisplayInsecureContent();
void OnDidRunInsecureContent(const std::string& security_origin,
const GURL& target_url);
void OnDocumentLoadedInFrame();
void OnDidFinishLoad(const GURL& url);
void OnDidStartLoading(bool to_different_document);
void OnDidStopLoading();
void OnDidChangeLoadProgress(double load_progress);
void OnGoToEntryAtOffset(int offset);
void OnUpdateZoomLimits(int minimum_percent,
int maximum_percent);
void OnEnumerateDirectory(int request_id, const base::FilePath& path);
void OnRegisterProtocolHandler(const std::string& protocol,
const GURL& url,
const base::string16& title,
bool user_gesture);
void OnUnregisterProtocolHandler(const std::string& protocol,
const GURL& url,
bool user_gesture);
void OnFindReply(int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update);
#if defined(OS_ANDROID)
void OnFindMatchRectsReply(int version,
const std::vector<gfx::RectF>& rects,
const gfx::RectF& active_rect);
void OnOpenDateTimeDialog(
const ViewHostMsg_DateTimeDialogValue_Params& value);
void OnPepperPluginHung(int plugin_child_id,
const base::FilePath& path,
bool is_hung);
void OnPluginCrashed(const base::FilePath& plugin_path,
base::ProcessId plugin_pid);
void OnDomOperationResponse(const std::string& json_string,
int automation_id);
void OnAppCacheAccessed(const GURL& manifest_url, bool blocked_by_policy);
void OnOpenColorChooser(int color_chooser_id,
SkColor color,
const std::vector<ColorSuggestion>& suggestions);
void OnEndColorChooser(int color_chooser_id);
void OnSetSelectedColorInColorChooser(int color_chooser_id, SkColor color);
void OnWebUISend(const GURL& source_url,
const std::string& name,
const base::ListValue& args);
void OnRequestPpapiBrokerPermission(int routing_id,
const GURL& url,
const base::FilePath& plugin_path);
void OnBrowserPluginMessage(const IPC::Message& message);
void OnDidDownloadImage(int id,
int http_status_code,
const GURL& image_url,
const std::vector<SkBitmap>& bitmaps,
const std::vector<gfx::Size>& original_bitmap_sizes);
void OnUpdateFaviconURL(const std::vector<FaviconURL>& candidates);
void OnFirstVisuallyNonEmptyPaint();
void OnMediaPlayingNotification(int64 player_cookie,
bool has_video,
bool has_audio);
void OnMediaPausedNotification(int64 player_cookie);
void OnShowValidationMessage(const gfx::Rect& anchor_in_root_view,
const base::string16& main_text,
const base::string16& sub_text);
void OnHideValidationMessage();
void OnMoveValidationMessage(const gfx::Rect& anchor_in_root_view);
// Called by derived classes to indicate that we're no longer waiting for a
// response. This won't actually update the throbber, but it will get picked
// up at the next animation step if the throbber is going.
void SetNotWaitingForResponse() { waiting_for_response_ = false; }
// Navigation helpers --------------------------------------------------------
// These functions are helpers for Navigate() and DidNavigate().
// Handles post-navigation tasks in DidNavigate AFTER the entry has been
// committed to the navigation controller. Note that the navigation entry is
// not provided since it may be invalid/changed after being committed. The
// current navigation entry is in the NavigationController at this point.
// If our controller was restored, update the max page ID associated with the
// given RenderViewHost to be larger than the number of restored entries.
// This is called in CreateRenderView before any navigations in the RenderView
// have begun, to prevent any races in updating RenderView::next_page_id.
void UpdateMaxPageIDIfNecessary(RenderViewHost* rvh);
// Saves the given title to the navigation entry and does associated work. It
// will update history and the view for the new title, and also synthesize
// titles for file URLs that have none (so we require that the URL of the
// entry already be set).
// This is used as the backend for state updates, which include a new title,
// or the dedicated set title message. It returns true if the new title is
// different and was therefore updated.
bool UpdateTitleForEntry(NavigationEntryImpl* entry,
const base::string16& title);
// Recursively creates swapped out RenderViews for this tab's opener chain
// (including this tab) in the given SiteInstance, allowing other tabs to send
// cross-process JavaScript calls to their opener(s). Returns the route ID of
// this tab's RenderView for |instance|.
int CreateOpenerRenderViews(SiteInstance* instance);
// Helper for CreateNewWidget/CreateNewFullscreenWidget.
void CreateNewWidget(int render_process_id,
int route_id,
bool is_fullscreen,
blink::WebPopupType popup_type);
// Helper for ShowCreatedWidget/ShowCreatedFullscreenWidget.
void ShowCreatedWidget(int route_id,
bool is_fullscreen,
const gfx::Rect& initial_pos);
// Finds the new RenderWidgetHost and returns it. Note that this can only be
// called once as this call also removes it from the internal map.
RenderWidgetHostView* GetCreatedWidget(int route_id);
// Finds the new WebContentsImpl by route_id, initializes it for
// renderer-initiated creation, and returns it. Note that this can only be
// called once as this call also removes it from the internal map.
WebContentsImpl* GetCreatedWindow(int route_id);
// Tracking loading progress -------------------------------------------------
// Resets the tracking state of the current load.
void ResetLoadProgressState();
// Calculates the progress of the current load and notifies the delegate.
void SendLoadProgressChanged();
// Called once when the last frame on the page has stopped loading.
void DidStopLoading(RenderFrameHost* render_frame_host);
// Misc non-view stuff -------------------------------------------------------
// Helper functions for sending notifications.
void NotifyViewSwapped(RenderViewHost* old_host, RenderViewHost* new_host);
void NotifyFrameSwapped(RenderFrameHost* old_host, RenderFrameHost* new_host);
void NotifyDisconnected();
void SetEncoding(const std::string& encoding);
// TODO(creis): This should take in a FrameTreeNode to know which node's
// render manager to return. For now, we just return the root's.
RenderFrameHostManager* GetRenderManager() const;
RenderViewHostImpl* GetRenderViewHostImpl();
// Removes browser plugin embedder if there is one.
void RemoveBrowserPluginEmbedder();
// Clear |render_frame_host|'s PowerSaveBlockers.
void ClearPowerSaveBlockers(RenderFrameHost* render_frame_host);
// Clear all PowerSaveBlockers, leave |power_save_blocker_| empty.
void ClearAllPowerSaveBlockers();
// Helper function to invoke WebContentsDelegate::GetSizeForNewRenderView().
gfx::Size GetSizeForNewRenderView();
void OnFrameRemoved(RenderFrameHost* render_frame_host);
// Helper method that's called whenever |preferred_size_| or
// |preferred_size_for_capture_| changes, to propagate the new value to the
// |delegate_|.
void OnPreferredSizeChanged(const gfx::Size& old_size);
// Adds/removes a callback called on creation of each new WebContents.
// Deprecated, about to remove.
static void AddCreatedCallback(const CreatedCallback& callback);
static void RemoveCreatedCallback(const CreatedCallback& callback);
// Data for core operation ---------------------------------------------------
// Delegate for notifying our owner about stuff. Not owned by us.
WebContentsDelegate* delegate_;
// Handles the back/forward list and loading.
NavigationControllerImpl controller_;
// The corresponding view.
scoped_ptr<WebContentsView> view_;
// The view of the RVHD. Usually this is our WebContentsView implementation,
// but if an embedder uses a different WebContentsView, they'll need to
// provide this.
RenderViewHostDelegateView* render_view_host_delegate_view_;
// Tracks created WebContentsImpl objects that have not been shown yet. They
// are identified by the route ID passed to CreateNewWindow.
typedef std::map<int, WebContentsImpl*> PendingContents;
PendingContents pending_contents_;
// These maps hold on to the widgets that we created on behalf of the renderer
// that haven't shown yet.
typedef std::map<int, RenderWidgetHostView*> PendingWidgetViews;
PendingWidgetViews pending_widget_views_;
typedef std::map<WebContentsImpl*, DestructionObserver*> DestructionObservers;
DestructionObservers destruction_observers_;
// A list of observers notified when page state changes. Weak references.
// This MUST be listed above frame_tree_ since at destruction time the
// latter might cause RenderViewHost's destructor to call us and we might use
// the observer list then.
ObserverList<WebContentsObserver> observers_;
// The tab that opened this tab, if any. Will be set to null if the opener
// is closed.
WebContentsImpl* opener_;
// True if this tab was opened by another tab. This is not unset if the opener
// is closed.
bool created_with_opener_;
#if defined(OS_WIN)
gfx::NativeViewAccessible accessible_parent_;
// Helper classes ------------------------------------------------------------
#if !defined(OS_CHROMEOS)
// Maps the RenderFrameHost to its media_player_cookie and PowerSaveBlocker
// pairs. Key is the RenderFrameHost, value is the map which maps
// player_cookie on to PowerSaveBlocker.
// ChromeOS does its own detection of audio and video.
typedef base::ScopedPtrHashMap<int64, PowerSaveBlocker>
typedef base::ScopedPtrHashMap<uintptr_t, PowerSaveBlockerMapEntry>
PowerSaveBlockerMap power_save_blockers_;
// Manages the frame tree of the page and process swaps in each node.
FrameTree frame_tree_;
// SavePackage, lazily created.
scoped_refptr<SavePackage> save_package_;
// Data for loading state ----------------------------------------------------
// Indicates whether we're currently loading a resource.
bool is_loading_;
// Indicates whether the current load is to a different document. Only valid
// if is_loading_ is true.
bool is_load_to_different_document_;
// Indicates if the tab is considered crashed.
base::TerminationStatus crashed_status_;
int crashed_error_code_;
// Whether this WebContents is waiting for a first-response for the
// main resource of the page. This controls whether the throbber state is
// "waiting" or "loading."
bool waiting_for_response_;
// Map of SiteInstance ID to max page ID for this tab. A page ID is specific
// to a given tab and SiteInstance, and must be valid for the lifetime of the
// WebContentsImpl.
std::map<int32, int32> max_page_ids_;
// The current load state and the URL associated with it.
net::LoadStateWithParam load_state_;
base::string16 load_state_host_;
// LoadingProgressMap maps FrameTreeNode IDs to a double representing that
// frame's completion (from 0 to 1).
typedef base::hash_map<int64, double> LoadingProgressMap;
LoadingProgressMap loading_progresses_;
double loading_total_progress_;
base::TimeTicks loading_last_progress_update_;
base::WeakPtrFactory<WebContentsImpl> loading_weak_factory_;
// Counter to track how many frames have sent start notifications but not
// stop notifications.
int loading_frames_in_progress_;
// Upload progress, for displaying in the status bar.
// Set to zero when there is no significant upload happening.
uint64 upload_size_;
uint64 upload_position_;
// Data for current page -----------------------------------------------------
// When a title cannot be taken from any entry, this title will be used.
base::string16 page_title_when_no_navigation_entry_;
// When a navigation occurs, we record its contents MIME type. It can be
// used to check whether we can do something for some special contents.
std::string contents_mime_type_;
// The last reported character encoding, not canonicalized.
std::string last_reported_encoding_;
// The canonicalized character encoding.
std::string canonical_encoding_;
// True if this is a secure page which displayed insecure content.
bool displayed_insecure_content_;
// Whether the initial empty page has been accessed by another page, making it
// unsafe to show the pending URL. Usually false unless another window tries
// to modify the blank page. Always false after the first commit.
bool has_accessed_initial_document_;
// Data for misc internal state ----------------------------------------------
// When > 0, the WebContents is currently being captured (e.g., for
// screenshots or mirroring); and the underlying RenderWidgetHost should not
// be told it is hidden.
int capturer_count_;
// Tracks whether RWHV should be visible once capturer_count_ becomes zero.
bool should_normally_be_visible_;
// See getter above.
bool is_being_destroyed_;
// Indicates whether we should notify about disconnection of this
// WebContentsImpl. This is used to ensure disconnection notifications only
// happen if a connection notification has happened and that they happen only
// once.
bool notify_disconnection_;
// Pointer to the JavaScript dialog manager, lazily assigned. Used because the
// delegate of this WebContentsImpl is nulled before its destructor is called.
JavaScriptDialogManager* dialog_manager_;
// Set to true when there is an active "before unload" dialog. When true,
// we've forced the throbber to start in Navigate, and we need to remember to
// turn it off in OnJavaScriptMessageBoxClosed if the navigation is canceled.
bool is_showing_before_unload_dialog_;
// Settings that get passed to the renderer process.
RendererPreferences renderer_preferences_;
// The time that this WebContents was last made active. The initial value is
// the WebContents creation time.
base::TimeTicks last_active_time_;
// See description above setter.
bool closed_by_user_gesture_;
// Minimum/maximum zoom percent.
int minimum_zoom_percent_;
int maximum_zoom_percent_;
// The raw accumulated zoom value and the actual zoom increments made for an
// an in-progress pinch gesture.
float totalPinchGestureAmount_;
int currentPinchZoomStepDelta_;
// The intrinsic size of the page.
gfx::Size preferred_size_;
// The preferred size for content screen capture. When |capturer_count_| > 0,
// this overrides |preferred_size_|.
gfx::Size preferred_size_for_capture_;
#if defined(OS_ANDROID)
// Date time chooser opened by this tab.
// Only used in Android since all other platforms use a multi field UI.
scoped_ptr<DateTimeChooserAndroid> date_time_chooser_;
// Holds information about a current color chooser dialog, if one is visible.
struct ColorChooserInfo {
ColorChooserInfo(int render_process_id,
int render_frame_id,
ColorChooser* chooser,
int identifier);
int render_process_id;
int render_frame_id;
// Color chooser that was opened by this tab.
scoped_ptr<ColorChooser> chooser;
// A unique identifier for the current color chooser. Identifiers are
// unique across a renderer process. This avoids race conditions in
// synchronizing the browser and renderer processes. For example, if a
// renderer closes one chooser and opens another, and simultaneously the
// user picks a color in the first chooser, the IDs can be used to drop the
// "chose a color" message rather than erroneously tell the renderer that
// the user picked a color in the second chooser.
int identifier;
scoped_ptr<ColorChooserInfo> color_chooser_info_;
// Manages the embedder state for browser plugins, if this WebContents is an
// embedder; NULL otherwise.
scoped_ptr<BrowserPluginEmbedder> browser_plugin_embedder_;
// Manages the guest state for browser plugin, if this WebContents is a guest;
// NULL otherwise.
scoped_ptr<BrowserPluginGuest> browser_plugin_guest_;
// This must be at the end, or else we might get notifications and use other
// member variables that are gone.
NotificationRegistrar registrar_;
// Used during IPC message dispatching from the RenderView/RenderFrame so that
// the handlers can get a pointer to the RVH through which the message was
// received.
RenderViewHost* render_view_message_source_;
RenderFrameHost* render_frame_message_source_;
// All live RenderWidgetHostImpls that are created by this object and may
// outlive it.
std::set<RenderWidgetHostImpl*> created_widgets_;
// Routing id of the shown fullscreen widget or MSG_ROUTING_NONE otherwise.
int fullscreen_widget_routing_id_;
// At the time the fullscreen widget was being shut down, did it have focus?
// This is used to restore focus to the WebContentsView after both: 1) the
// fullscreen widget is destroyed, and 2) the WebContentsDelegate has
// completed making layout changes to effect an exit from fullscreen mode.
bool fullscreen_widget_had_focus_at_shutdown_;
// Maps the ids of pending image downloads to their callbacks
typedef std::map<int, ImageDownloadCallback> ImageDownloadMap;
ImageDownloadMap image_download_map_;
// Whether this WebContents is responsible for displaying a subframe in a
// different process from its parent page.
bool is_subframe_;
// Whether touch emulation is enabled in RenderWidgetHost.
bool touch_emulation_enabled_;
// Whether the last JavaScript dialog shown was suppressed. Used for testing.
bool last_dialog_suppressed_;
scoped_ptr<GeolocationDispatcherHost> geolocation_dispatcher_host_;
scoped_ptr<MidiDispatcherHost> midi_dispatcher_host_;
// The accessibility mode for all frames. This is queried when each frame
// is created, and broadcast to all frames when it changes.
AccessibilityMode accessibility_mode_;
} // namespace content