chrome/browser/extensions/api/media_galleries_private/media_galleries_watch_apitest.cc - platform/external/chromium_org - Git at Google

 // 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.
 //
 // MediaGalleriesPrivate gallery watch API browser tests.

 #include "base/files/file_path.h"
 #include "base/files/file_path_watcher.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/media_galleries/media_file_system_registry.h"
 #include "chrome/browser/media_galleries/media_galleries_preferences.h"
 #include "chrome/browser/media_galleries/media_galleries_test_util.h"
 #include "chrome/common/chrome_paths.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/switches.h"
 #include "extensions/test/extension_test_message_listener.h"

 namespace {

 // Id of test extension from
 // chrome/test/data/extensions/api_test/|kTestExtensionPath|
 const char kTestExtensionId[] = "gceegfkgibmgpfopknlcgleimclbknie";
 const char kTestExtensionPath[] = "media_galleries_private/gallerywatch";

 // JS commands.
 const char kGetAllWatchedGalleryIdsCmd[] = "getAllWatchedGalleryIds()";
 const char kGetMediaFileSystemsCmd[] = "getMediaFileSystems()";
 const char kSetupWatchOnValidGalleriesCmd[] = "setupWatchOnValidGalleries()";
 const char kAddGalleryChangedListenerCmd[] = "addGalleryChangedListener()";
 const char kRemoveAllGalleryWatchCmd[] = "removeAllGalleryWatch()";
 const char kRemoveGalleryChangedListenerCmd[] =
     "removeGalleryChangedListener()";
 const char kRemoveGalleryWatchCmd[] = "removeGalleryWatch()";
 const char kSetupWatchOnInvalidGalleryCmd[] = "setupWatchOnInvalidGallery()";

 // And JS reply messages.
 const char kAddGalleryWatchOK[] = "add_gallery_watch_ok";
 const char kGetAllGalleryWatchOK[] = "get_all_gallery_watch_ok";
 const char kGetMediaFileSystemsCallbackOK[] =
     "get_media_file_systems_callback_ok";
 const char kGetMediaFileSystemsOK[] = "get_media_file_systems_ok";
 const char kAddGalleryChangedListenerOK[] = "add_gallery_changed_listener_ok";
 const char kRemoveAllGalleryWatchOK[] = "remove_all_gallery_watch_ok";
 const char kRemoveGalleryChangedListenerOK[] =
     "remove_gallery_changed_listener_ok";
 const char kRemoveGalleryWatchOK[] = "remove_gallery_watch_ok";

 // Test reply messages.
 const char kNoGalleryWatchesInstalled[] = "gallery_watchers_does_not_exists";
 const char kAddGalleryWatchRequestFailed[] = "add_watch_request_failed";
 const char kAddGalleryWatchRequestSucceeded[] = "add_watch_request_succeeded";
 const char kGalleryChangedEventReceived[] = "gallery_changed_event_received";
 const char kGalleryWatchesCheck[] = "gallery_watcher_checks";

 }  // namespace


 ///////////////////////////////////////////////////////////////////////////////
 //                 MediaGalleriesPrivateGalleryWatchApiTest                  //
 ///////////////////////////////////////////////////////////////////////////////

 class MediaGalleriesPrivateGalleryWatchApiTest : public ExtensionApiTest {
  public:
   MediaGalleriesPrivateGalleryWatchApiTest()
       : extension_(NULL),
         background_host_(NULL) {
   }
   virtual ~MediaGalleriesPrivateGalleryWatchApiTest() {}

  protected:
   // ExtensionApiTest overrides.
   void SetUpCommandLine(CommandLine* command_line) override {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitchASCII(
         extensions::switches::kWhitelistedExtensionID,
         kTestExtensionId);
   }
   void SetUpOnMainThread() override {
     ExtensionApiTest::SetUpOnMainThread();
     ensure_media_directories_exists_.reset(new EnsureMediaDirectoriesExists);
     extension_ = LoadExtension(test_data_dir_.AppendASCII(kTestExtensionPath));
     GetBackgroundHostForTestExtension();
     CreateTestGallery();
     FetchMediaGalleriesList();
   }
   void TearDownOnMainThread() override {
     extension_ = NULL;
     background_host_ = NULL;
     ensure_media_directories_exists_.reset();
     ExtensionApiTest::TearDownOnMainThread();
   }

   bool GalleryWatchesSupported() {
     return base::FilePathWatcher::RecursiveWatchAvailable();
   }

   void ExecuteCmdAndCheckReply(const std::string& js_command,
                                const std::string& ok_message) {
     ExtensionTestMessageListener listener(ok_message, false);
     background_host_->GetMainFrame()->ExecuteJavaScript(
         base::ASCIIToUTF16(js_command));
     EXPECT_TRUE(listener.WaitUntilSatisfied());
   }

   bool AddNewFileInTestGallery() {
     base::FilePath gallery_file =
         test_gallery_.path().Append(FILE_PATH_LITERAL("test1.txt"));
     std::string content("new content");
     int write_size = base::WriteFile(gallery_file, content.c_str(),
                                      content.length());
     return (write_size == static_cast<int>(content.length()));
   }

   void SetupGalleryWatches() {
     std::string expected_result = GalleryWatchesSupported() ?
         kAddGalleryWatchRequestSucceeded : kAddGalleryWatchRequestFailed;

     ExtensionTestMessageListener add_gallery_watch_finished(
         expected_result, false  /* no reply */);
     ExecuteCmdAndCheckReply(kSetupWatchOnValidGalleriesCmd, kAddGalleryWatchOK);
     EXPECT_TRUE(add_gallery_watch_finished.WaitUntilSatisfied());
   }

  private:
   void GetBackgroundHostForTestExtension() {
     ASSERT_TRUE(extension_);
     extensions::ExtensionSystem* extension_system =
         extensions::ExtensionSystem::Get(browser()->profile());
     background_host_ =
         extension_system->process_manager()->GetBackgroundHostForExtension(
             extension_->id())->render_view_host();
     ASSERT_TRUE(background_host_);
   }

   void CreateTestGallery() {
     MediaGalleriesPreferences* preferences =
         g_browser_process->media_file_system_registry()->GetPreferences(
             browser()->profile());
     base::RunLoop runloop;
     preferences->EnsureInitialized(runloop.QuitClosure());
     runloop.Run();

     ASSERT_TRUE(test_gallery_.CreateUniqueTempDir());
     MediaGalleryPrefInfo gallery_info;
     ASSERT_FALSE(preferences->LookUpGalleryByPath(test_gallery_.path(),
                                                   &gallery_info));
     MediaGalleryPrefId id = preferences->AddGallery(
         gallery_info.device_id,
         gallery_info.path,
         MediaGalleryPrefInfo::kAutoDetected,
         gallery_info.volume_label,
         gallery_info.vendor_name,
         gallery_info.model_name,
         gallery_info.total_size_in_bytes,
         gallery_info.last_attach_time,
         0, 0, 0);

     preferences->SetGalleryPermissionForExtension(*extension_, id, true);
   }

   void FetchMediaGalleriesList() {
     ExtensionTestMessageListener get_media_systems_finished(
         kGetMediaFileSystemsCallbackOK, false  /* no reply */);
     ExecuteCmdAndCheckReply(kGetMediaFileSystemsCmd, kGetMediaFileSystemsOK);
     EXPECT_TRUE(get_media_systems_finished.WaitUntilSatisfied());
   }

   scoped_ptr<EnsureMediaDirectoriesExists> ensure_media_directories_exists_;

   base::ScopedTempDir test_gallery_;

   const extensions::Extension* extension_;

   content::RenderViewHost* background_host_;

   DISALLOW_COPY_AND_ASSIGN(MediaGalleriesPrivateGalleryWatchApiTest);
 };

 // Crashing on OSX.
 #if defined(OS_MACOSX)
 #define MAYBE_BasicGalleryWatch DISABLED_BasicGalleryWatch
 #else
 #define MAYBE_BasicGalleryWatch BasicGalleryWatch
 #endif
 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        MAYBE_BasicGalleryWatch) {
   SetupGalleryWatches();

   // Add gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);

   // Modify gallery contents.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false  /* no reply */);
   ASSERT_TRUE(AddNewFileInTestGallery());
   if (GalleryWatchesSupported())
     EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

   // Remove gallery watch listener.
   ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
                           kRemoveGalleryChangedListenerOK);

   // Remove gallery watch request.
   if (GalleryWatchesSupported())
     ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
 }

 // http://crbug.com/390979
 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        DISABLED_RemoveListenerAndModifyGallery) {
   if (!GalleryWatchesSupported())
     return;

   SetupGalleryWatches();

   // Add a gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);
   // Modify gallery contents.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false  /* no reply */);
   ASSERT_TRUE(AddNewFileInTestGallery());
   EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

   // Remove gallery watch listener.
   ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
                           kRemoveGalleryChangedListenerOK);

   // No listener, modify gallery contents.
   ASSERT_TRUE(AddNewFileInTestGallery());

   // Remove gallery watch.
   ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        SetupGalleryWatchWithoutListeners) {
   if (!GalleryWatchesSupported())
     return;

   SetupGalleryWatches();

   // No listeners, modify gallery contents.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false  /* no reply */);
   ASSERT_TRUE(AddNewFileInTestGallery());

   // Remove gallery watch.
   ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        SetupGalleryChangedListenerWithoutWatchers) {
   // Add gallery watch listener.
   ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
                           kAddGalleryChangedListenerOK);

   // Modify gallery contents. Listener should not get called because add watch
   // request was not called.
   ExtensionTestMessageListener gallery_change_event_received(
       kGalleryChangedEventReceived, false  /* no reply */);
   ASSERT_TRUE(AddNewFileInTestGallery());

   // Remove gallery watch listener.
   ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
                           kRemoveGalleryChangedListenerOK);
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        SetupWatchOnInvalidGallery) {
   // Set up a invalid gallery watch.
   ExtensionTestMessageListener invalid_gallery_watch_request_finished(
       kAddGalleryWatchRequestFailed, false  /* no reply */);
   ExecuteCmdAndCheckReply(kSetupWatchOnInvalidGalleryCmd, kAddGalleryWatchOK);
   EXPECT_TRUE(invalid_gallery_watch_request_finished.WaitUntilSatisfied());
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        GetAllGalleryWatch) {
   // Gallery watchers are not yet added.
   // chrome.mediaGalleriesPrivate.getAllGalleryWatch should return an empty
   // list.
   ExtensionTestMessageListener initial_get_all_check_finished(
       kNoGalleryWatchesInstalled, false  /* no reply */);
   ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
   EXPECT_TRUE(initial_get_all_check_finished.WaitUntilSatisfied());

   if (!GalleryWatchesSupported())
     return;

   SetupGalleryWatches();

   // chrome.mediaGalleriesPrivate.getAllGalleryWatch should return the
   // gallery identifiers.
   ExtensionTestMessageListener get_all_watched_galleries_finished(
       kGalleryWatchesCheck, false  /* no reply */);
   ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
   EXPECT_TRUE(get_all_watched_galleries_finished.WaitUntilSatisfied());

   // Remove gallery watch request.
   ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);

   // Gallery watchers removed.
   // chrome.mediaGalleriesPrivate.getAllGalleryWatch() should return an empty
   // list.
   ExtensionTestMessageListener final_get_all_check_finished(
       kNoGalleryWatchesInstalled, false  /* no reply */);
   ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
   EXPECT_TRUE(final_get_all_check_finished.WaitUntilSatisfied());
 }

 IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
                        RemoveAllGalleryWatch) {
   if (!GalleryWatchesSupported())
     return;

   SetupGalleryWatches();

   // chrome.mediaGalleriesPrivate.getAllGalleryWatch should return the watched
   // gallery identifiers.
   ExtensionTestMessageListener get_all_watched_galleries_finished(
       kGalleryWatchesCheck, false  /* no reply */);
   ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
   EXPECT_TRUE(get_all_watched_galleries_finished.WaitUntilSatisfied());

   // Remove all gallery watchers.
   ExecuteCmdAndCheckReply(kRemoveAllGalleryWatchCmd, kRemoveAllGalleryWatchOK);

   // Gallery watchers removed. chrome.mediaGalleriesPrivate.getAllGalleryWatch
   // should return an empty list.
   ExtensionTestMessageListener final_get_all_check_finished(
       kNoGalleryWatchesInstalled, false  /* no reply */);
   ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
   EXPECT_TRUE(final_get_all_check_finished.WaitUntilSatisfied());
 }
	// 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.
	//
	// MediaGalleriesPrivate gallery watch API browser tests.

	#include "base/files/file_path.h"
	#include "base/files/file_path_watcher.h"
	#include "base/files/file_util.h"
	#include "base/path_service.h"
	#include "base/run_loop.h"
	#include "base/strings/utf_string_conversions.h"
	#include "build/build_config.h"
	#include "chrome/browser/browser_process.h"
	#include "chrome/browser/extensions/extension_apitest.h"
	#include "chrome/browser/extensions/extension_service.h"
	#include "chrome/browser/media_galleries/media_file_system_registry.h"
	#include "chrome/browser/media_galleries/media_galleries_preferences.h"
	#include "chrome/browser/media_galleries/media_galleries_test_util.h"
	#include "chrome/common/chrome_paths.h"
	#include "content/public/browser/render_frame_host.h"
	#include "content/public/browser/render_view_host.h"
	#include "extensions/browser/extension_system.h"
	#include "extensions/common/extension.h"
	#include "extensions/common/switches.h"
	#include "extensions/test/extension_test_message_listener.h"

	namespace {

	// Id of test extension from
	// chrome/test/data/extensions/api_test/\|kTestExtensionPath\|
	const char kTestExtensionId[] = "gceegfkgibmgpfopknlcgleimclbknie";
	const char kTestExtensionPath[] = "media_galleries_private/gallerywatch";

	// JS commands.
	const char kGetAllWatchedGalleryIdsCmd[] = "getAllWatchedGalleryIds()";
	const char kGetMediaFileSystemsCmd[] = "getMediaFileSystems()";
	const char kSetupWatchOnValidGalleriesCmd[] = "setupWatchOnValidGalleries()";
	const char kAddGalleryChangedListenerCmd[] = "addGalleryChangedListener()";
	const char kRemoveAllGalleryWatchCmd[] = "removeAllGalleryWatch()";
	const char kRemoveGalleryChangedListenerCmd[] =
	"removeGalleryChangedListener()";
	const char kRemoveGalleryWatchCmd[] = "removeGalleryWatch()";
	const char kSetupWatchOnInvalidGalleryCmd[] = "setupWatchOnInvalidGallery()";

	// And JS reply messages.
	const char kAddGalleryWatchOK[] = "add_gallery_watch_ok";
	const char kGetAllGalleryWatchOK[] = "get_all_gallery_watch_ok";
	const char kGetMediaFileSystemsCallbackOK[] =
	"get_media_file_systems_callback_ok";
	const char kGetMediaFileSystemsOK[] = "get_media_file_systems_ok";
	const char kAddGalleryChangedListenerOK[] = "add_gallery_changed_listener_ok";
	const char kRemoveAllGalleryWatchOK[] = "remove_all_gallery_watch_ok";
	const char kRemoveGalleryChangedListenerOK[] =
	"remove_gallery_changed_listener_ok";
	const char kRemoveGalleryWatchOK[] = "remove_gallery_watch_ok";

	// Test reply messages.
	const char kNoGalleryWatchesInstalled[] = "gallery_watchers_does_not_exists";
	const char kAddGalleryWatchRequestFailed[] = "add_watch_request_failed";
	const char kAddGalleryWatchRequestSucceeded[] = "add_watch_request_succeeded";
	const char kGalleryChangedEventReceived[] = "gallery_changed_event_received";
	const char kGalleryWatchesCheck[] = "gallery_watcher_checks";

	} // namespace


	///////////////////////////////////////////////////////////////////////////////
	// MediaGalleriesPrivateGalleryWatchApiTest //
	///////////////////////////////////////////////////////////////////////////////

	class MediaGalleriesPrivateGalleryWatchApiTest : public ExtensionApiTest {
	public:
	MediaGalleriesPrivateGalleryWatchApiTest()
	: extension_(NULL),
	background_host_(NULL) {
	}
	virtual ~MediaGalleriesPrivateGalleryWatchApiTest() {}

	protected:
	// ExtensionApiTest overrides.
	void SetUpCommandLine(CommandLine* command_line) override {
	ExtensionApiTest::SetUpCommandLine(command_line);
	command_line->AppendSwitchASCII(
	extensions::switches::kWhitelistedExtensionID,
	kTestExtensionId);
	}
	void SetUpOnMainThread() override {
	ExtensionApiTest::SetUpOnMainThread();
	ensure_media_directories_exists_.reset(new EnsureMediaDirectoriesExists);
	extension_ = LoadExtension(test_data_dir_.AppendASCII(kTestExtensionPath));
	GetBackgroundHostForTestExtension();
	CreateTestGallery();
	FetchMediaGalleriesList();
	}
	void TearDownOnMainThread() override {
	extension_ = NULL;
	background_host_ = NULL;
	ensure_media_directories_exists_.reset();
	ExtensionApiTest::TearDownOnMainThread();
	}

	bool GalleryWatchesSupported() {
	return base::FilePathWatcher::RecursiveWatchAvailable();
	}

	void ExecuteCmdAndCheckReply(const std::string& js_command,
	const std::string& ok_message) {
	ExtensionTestMessageListener listener(ok_message, false);
	background_host_->GetMainFrame()->ExecuteJavaScript(
	base::ASCIIToUTF16(js_command));
	EXPECT_TRUE(listener.WaitUntilSatisfied());
	}

	bool AddNewFileInTestGallery() {
	base::FilePath gallery_file =
	test_gallery_.path().Append(FILE_PATH_LITERAL("test1.txt"));
	std::string content("new content");
	int write_size = base::WriteFile(gallery_file, content.c_str(),
	content.length());
	return (write_size == static_cast<int>(content.length()));
	}

	void SetupGalleryWatches() {
	std::string expected_result = GalleryWatchesSupported() ?
	kAddGalleryWatchRequestSucceeded : kAddGalleryWatchRequestFailed;

	ExtensionTestMessageListener add_gallery_watch_finished(
	expected_result, false /* no reply */);
	ExecuteCmdAndCheckReply(kSetupWatchOnValidGalleriesCmd, kAddGalleryWatchOK);
	EXPECT_TRUE(add_gallery_watch_finished.WaitUntilSatisfied());
	}

	private:
	void GetBackgroundHostForTestExtension() {
	ASSERT_TRUE(extension_);
	extensions::ExtensionSystem* extension_system =
	extensions::ExtensionSystem::Get(browser()->profile());
	background_host_ =
	extension_system->process_manager()->GetBackgroundHostForExtension(
	extension_->id())->render_view_host();
	ASSERT_TRUE(background_host_);
	}

	void CreateTestGallery() {
	MediaGalleriesPreferences* preferences =
	g_browser_process->media_file_system_registry()->GetPreferences(
	browser()->profile());
	base::RunLoop runloop;
	preferences->EnsureInitialized(runloop.QuitClosure());
	runloop.Run();

	ASSERT_TRUE(test_gallery_.CreateUniqueTempDir());
	MediaGalleryPrefInfo gallery_info;
	ASSERT_FALSE(preferences->LookUpGalleryByPath(test_gallery_.path(),
	&gallery_info));
	MediaGalleryPrefId id = preferences->AddGallery(
	gallery_info.device_id,
	gallery_info.path,
	MediaGalleryPrefInfo::kAutoDetected,
	gallery_info.volume_label,
	gallery_info.vendor_name,
	gallery_info.model_name,
	gallery_info.total_size_in_bytes,
	gallery_info.last_attach_time,
	0, 0, 0);

	preferences->SetGalleryPermissionForExtension(*extension_, id, true);
	}

	void FetchMediaGalleriesList() {
	ExtensionTestMessageListener get_media_systems_finished(
	kGetMediaFileSystemsCallbackOK, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetMediaFileSystemsCmd, kGetMediaFileSystemsOK);
	EXPECT_TRUE(get_media_systems_finished.WaitUntilSatisfied());
	}

	scoped_ptr<EnsureMediaDirectoriesExists> ensure_media_directories_exists_;

	base::ScopedTempDir test_gallery_;

	const extensions::Extension* extension_;

	content::RenderViewHost* background_host_;

	DISALLOW_COPY_AND_ASSIGN(MediaGalleriesPrivateGalleryWatchApiTest);
	};

	// Crashing on OSX.
	#if defined(OS_MACOSX)
	#define MAYBE_BasicGalleryWatch DISABLED_BasicGalleryWatch
	#else
	#define MAYBE_BasicGalleryWatch BasicGalleryWatch
	#endif
	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	MAYBE_BasicGalleryWatch) {
	SetupGalleryWatches();

	// Add gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);

	// Modify gallery contents.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);
	ASSERT_TRUE(AddNewFileInTestGallery());
	if (GalleryWatchesSupported())
	EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

	// Remove gallery watch listener.
	ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
	kRemoveGalleryChangedListenerOK);

	// Remove gallery watch request.
	if (GalleryWatchesSupported())
	ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
	}

	// http://crbug.com/390979
	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	DISABLED_RemoveListenerAndModifyGallery) {
	if (!GalleryWatchesSupported())
	return;

	SetupGalleryWatches();

	// Add a gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);
	// Modify gallery contents.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);
	ASSERT_TRUE(AddNewFileInTestGallery());
	EXPECT_TRUE(gallery_change_event_received.WaitUntilSatisfied());

	// Remove gallery watch listener.
	ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
	kRemoveGalleryChangedListenerOK);

	// No listener, modify gallery contents.
	ASSERT_TRUE(AddNewFileInTestGallery());

	// Remove gallery watch.
	ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	SetupGalleryWatchWithoutListeners) {
	if (!GalleryWatchesSupported())
	return;

	SetupGalleryWatches();

	// No listeners, modify gallery contents.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);
	ASSERT_TRUE(AddNewFileInTestGallery());

	// Remove gallery watch.
	ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	SetupGalleryChangedListenerWithoutWatchers) {
	// Add gallery watch listener.
	ExecuteCmdAndCheckReply(kAddGalleryChangedListenerCmd,
	kAddGalleryChangedListenerOK);

	// Modify gallery contents. Listener should not get called because add watch
	// request was not called.
	ExtensionTestMessageListener gallery_change_event_received(
	kGalleryChangedEventReceived, false /* no reply */);
	ASSERT_TRUE(AddNewFileInTestGallery());

	// Remove gallery watch listener.
	ExecuteCmdAndCheckReply(kRemoveGalleryChangedListenerCmd,
	kRemoveGalleryChangedListenerOK);
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	SetupWatchOnInvalidGallery) {
	// Set up a invalid gallery watch.
	ExtensionTestMessageListener invalid_gallery_watch_request_finished(
	kAddGalleryWatchRequestFailed, false /* no reply */);
	ExecuteCmdAndCheckReply(kSetupWatchOnInvalidGalleryCmd, kAddGalleryWatchOK);
	EXPECT_TRUE(invalid_gallery_watch_request_finished.WaitUntilSatisfied());
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	GetAllGalleryWatch) {
	// Gallery watchers are not yet added.
	// chrome.mediaGalleriesPrivate.getAllGalleryWatch should return an empty
	// list.
	ExtensionTestMessageListener initial_get_all_check_finished(
	kNoGalleryWatchesInstalled, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
	EXPECT_TRUE(initial_get_all_check_finished.WaitUntilSatisfied());

	if (!GalleryWatchesSupported())
	return;

	SetupGalleryWatches();

	// chrome.mediaGalleriesPrivate.getAllGalleryWatch should return the
	// gallery identifiers.
	ExtensionTestMessageListener get_all_watched_galleries_finished(
	kGalleryWatchesCheck, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
	EXPECT_TRUE(get_all_watched_galleries_finished.WaitUntilSatisfied());

	// Remove gallery watch request.
	ExecuteCmdAndCheckReply(kRemoveGalleryWatchCmd, kRemoveGalleryWatchOK);

	// Gallery watchers removed.
	// chrome.mediaGalleriesPrivate.getAllGalleryWatch() should return an empty
	// list.
	ExtensionTestMessageListener final_get_all_check_finished(
	kNoGalleryWatchesInstalled, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
	EXPECT_TRUE(final_get_all_check_finished.WaitUntilSatisfied());
	}

	IN_PROC_BROWSER_TEST_F(MediaGalleriesPrivateGalleryWatchApiTest,
	RemoveAllGalleryWatch) {
	if (!GalleryWatchesSupported())
	return;

	SetupGalleryWatches();

	// chrome.mediaGalleriesPrivate.getAllGalleryWatch should return the watched
	// gallery identifiers.
	ExtensionTestMessageListener get_all_watched_galleries_finished(
	kGalleryWatchesCheck, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
	EXPECT_TRUE(get_all_watched_galleries_finished.WaitUntilSatisfied());

	// Remove all gallery watchers.
	ExecuteCmdAndCheckReply(kRemoveAllGalleryWatchCmd, kRemoveAllGalleryWatchOK);

	// Gallery watchers removed. chrome.mediaGalleriesPrivate.getAllGalleryWatch
	// should return an empty list.
	ExtensionTestMessageListener final_get_all_check_finished(
	kNoGalleryWatchesInstalled, false /* no reply */);
	ExecuteCmdAndCheckReply(kGetAllWatchedGalleryIdsCmd, kGetAllGalleryWatchOK);
	EXPECT_TRUE(final_get_all_check_finished.WaitUntilSatisfied());
	}