content/renderer/media/renderer_webmediaplayer_delegate_browsertest.cc - chromium/src.git - Git at Google

 // Copyright 2016 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 <tuple>

 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/test/histogram_tester.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "content/common/media/media_player_delegate_messages.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/test/render_view_test.h"
 #include "content/renderer/media/renderer_webmediaplayer_delegate.h"
 #include "content/renderer/render_process.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"

 using testing::NiceMock;
 using testing::Return;
 using testing::StrictMock;

 namespace media {

 namespace {
 constexpr base::TimeDelta kIdleTimeout = base::TimeDelta::FromSeconds(1);
 }

 class MockWebMediaPlayerDelegateObserver
     : public WebMediaPlayerDelegate::Observer {
  public:
   MockWebMediaPlayerDelegateObserver() {}
   ~MockWebMediaPlayerDelegateObserver() {}

   // WebMediaPlayerDelegate::Observer implementation.
   MOCK_METHOD0(OnFrameHidden, void());
   MOCK_METHOD0(OnFrameClosed, void());
   MOCK_METHOD0(OnFrameShown, void());
   MOCK_METHOD0(OnIdleTimeout, void());
   MOCK_METHOD0(OnPlay, void());
   MOCK_METHOD0(OnPause, void());
   MOCK_METHOD1(OnVolumeMultiplierUpdate, void(double));
   MOCK_METHOD1(OnBecamePersistentVideo, void(bool));
 };

 class RendererWebMediaPlayerDelegateTest : public content::RenderViewTest {
  public:
   RendererWebMediaPlayerDelegateTest() {}
   ~RendererWebMediaPlayerDelegateTest() override {}

   void SetUp() override {
     RenderViewTest::SetUp();
     // Start the tick clock off at a non-null value.
     tick_clock_.Advance(base::TimeDelta::FromSeconds(1234));
     delegate_manager_.reset(
         new RendererWebMediaPlayerDelegate(view_->GetMainRenderFrame()));
     delegate_manager_->SetIdleCleanupParamsForTesting(kIdleTimeout,
                                                       &tick_clock_, false);
   }

   void TearDown() override {
     delegate_manager_.reset();
     RenderViewTest::TearDown();
   }

  protected:
   IPC::TestSink& test_sink() { return render_thread_->sink(); }

   void CallOnMediaDelegatePlay(int delegate_id) {
     delegate_manager_->OnMediaDelegatePlay(delegate_id);
   }

   void CallOnMediaDelegatePause(int delegate_id) {
     delegate_manager_->OnMediaDelegatePause(delegate_id);
   }

   void SetIsLowEndDeviceForTesting() {
     delegate_manager_->SetIdleCleanupParamsForTesting(kIdleTimeout,
                                                       &tick_clock_, true);
   }

   void RunLoopOnce() {
     base::RunLoop run_loop;
     base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
                                                   run_loop.QuitClosure());
     run_loop.Run();
   }

   std::unique_ptr<RendererWebMediaPlayerDelegate> delegate_manager_;
   StrictMock<MockWebMediaPlayerDelegateObserver> observer_1_, observer_2_,
       observer_3_;
   base::SimpleTestTickClock tick_clock_;

  private:
   DISALLOW_COPY_AND_ASSIGN(RendererWebMediaPlayerDelegateTest);
 };

 TEST_F(RendererWebMediaPlayerDelegateTest, SendsMessagesCorrectly) {
   StrictMock<MockWebMediaPlayerDelegateObserver> observer;
   const int delegate_id = delegate_manager_->AddObserver(&observer);

   // Verify the playing message.
   {
     const bool kHasVideo = true, kHasAudio = false, kIsRemote = false;
     const media::MediaContentType kMediaContentType =
         media::MediaContentType::Transient;
     delegate_manager_->DidPlay(delegate_id, kHasVideo, kHasAudio,
                                kMediaContentType);

     const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
         MediaPlayerDelegateHostMsg_OnMediaPlaying::ID);
     ASSERT_TRUE(msg);

     std::tuple<int, bool, bool, bool, media::MediaContentType> result;
     ASSERT_TRUE(MediaPlayerDelegateHostMsg_OnMediaPlaying::Read(msg, &result));
     EXPECT_EQ(delegate_id, std::get<0>(result));
     EXPECT_EQ(kHasVideo, std::get<1>(result));
     EXPECT_EQ(kHasAudio, std::get<2>(result));
     EXPECT_EQ(kIsRemote, std::get<3>(result));
     EXPECT_EQ(kMediaContentType, std::get<4>(result));
   }

   // Verify the paused message.
   {
     test_sink().ClearMessages();
     const bool kReachedEndOfStream = false;
     delegate_manager_->DidPause(delegate_id);

     const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
         MediaPlayerDelegateHostMsg_OnMediaPaused::ID);
     ASSERT_TRUE(msg);

     std::tuple<int, bool> result;
     ASSERT_TRUE(MediaPlayerDelegateHostMsg_OnMediaPaused::Read(msg, &result));
     EXPECT_EQ(delegate_id, std::get<0>(result));
     EXPECT_EQ(kReachedEndOfStream, std::get<1>(result));
   }

   // Verify the destruction message.
   {
     test_sink().ClearMessages();
     delegate_manager_->PlayerGone(delegate_id);
     const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
         MediaPlayerDelegateHostMsg_OnMediaDestroyed::ID);
     ASSERT_TRUE(msg);

     std::tuple<int> result;
     ASSERT_TRUE(
         MediaPlayerDelegateHostMsg_OnMediaDestroyed::Read(msg, &result));
     EXPECT_EQ(delegate_id, std::get<0>(result));
   }

   // Verify the resize message.
   {
     test_sink().ClearMessages();
     delegate_manager_->DidPlayerSizeChange(delegate_id, gfx::Size(16, 9));
     const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
         MediaPlayerDelegateHostMsg_OnMediaSizeChanged::ID);
     ASSERT_TRUE(msg);

     std::tuple<int, gfx::Size> result;
     ASSERT_TRUE(
         MediaPlayerDelegateHostMsg_OnMediaSizeChanged::Read(msg, &result));
     EXPECT_EQ(delegate_id, std::get<0>(result));
     EXPECT_EQ(16, std::get<1>(result).width());
     EXPECT_EQ(9, std::get<1>(result).height());
   }

   // Verify the muted status message.
   {
     test_sink().ClearMessages();
     delegate_manager_->DidPlayerMutedStatusChange(delegate_id, true);
     const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
         MediaPlayerDelegateHostMsg_OnMutedStatusChanged::ID);
     ASSERT_TRUE(msg);

     std::tuple<int, bool> result;
     ASSERT_TRUE(
         MediaPlayerDelegateHostMsg_OnMutedStatusChanged::Read(msg, &result));
     EXPECT_EQ(delegate_id, std::get<0>(result));
     EXPECT_TRUE(std::get<1>(result));
   }
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, DeliversObserverNotifications) {
   const int delegate_id = delegate_manager_->AddObserver(&observer_1_);

   EXPECT_CALL(observer_1_, OnFrameHidden());
   delegate_manager_->WasHidden();

   EXPECT_CALL(observer_1_, OnFrameShown());
   delegate_manager_->WasShown();

   EXPECT_CALL(observer_1_, OnPause());
   MediaPlayerDelegateMsg_Pause pause_msg(0, delegate_id);
   delegate_manager_->OnMessageReceived(pause_msg);

   EXPECT_CALL(observer_1_, OnPlay());
   MediaPlayerDelegateMsg_Play play_msg(0, delegate_id);
   delegate_manager_->OnMessageReceived(play_msg);

   const double kTestMultiplier = 0.5;
   EXPECT_CALL(observer_1_, OnVolumeMultiplierUpdate(kTestMultiplier));
   MediaPlayerDelegateMsg_UpdateVolumeMultiplier volume_msg(0, delegate_id,
                                                            kTestMultiplier);
   delegate_manager_->OnMessageReceived(volume_msg);

   EXPECT_CALL(observer_1_, OnFrameClosed());
   MediaPlayerDelegateMsg_SuspendAllMediaPlayers suspend_msg(0);
   delegate_manager_->OnMessageReceived(suspend_msg);
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, TheTimerIsInitiallyStopped) {
   ASSERT_FALSE(delegate_manager_->IsIdleCleanupTimerRunningForTesting());
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, AddingAnIdleObserverStartsTheTimer) {
   const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
   delegate_manager_->SetIdle(delegate_id_1, true);
   RunLoopOnce();
   ASSERT_TRUE(delegate_manager_->IsIdleCleanupTimerRunningForTesting());
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, RemovingAllObserversStopsTheTimer) {
   const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
   delegate_manager_->SetIdle(delegate_id_1, true);
   RunLoopOnce();
   delegate_manager_->RemoveObserver(delegate_id_1);
   RunLoopOnce();
   ASSERT_FALSE(delegate_manager_->IsIdleCleanupTimerRunningForTesting());
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, PlaySuspendsLowEndIdleDelegates) {
   SetIsLowEndDeviceForTesting();

   const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
   delegate_manager_->SetIdle(delegate_id_1, true);
   const int delegate_id_2 = delegate_manager_->AddObserver(&observer_2_);
   delegate_manager_->SetIdle(delegate_id_2, true);
   RunLoopOnce();

   // Calling play on the first player should suspend the other idle player.
   EXPECT_CALL(observer_2_, OnIdleTimeout());
   delegate_manager_->DidPlay(delegate_id_1, true, true,
                              media::MediaContentType::Persistent);
   delegate_manager_->SetIdle(delegate_id_1, false);
   tick_clock_.Advance(base::TimeDelta::FromMicroseconds(1));
   RunLoopOnce();
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, MaxLowEndIdleDelegates) {
   SetIsLowEndDeviceForTesting();

   int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
   delegate_manager_->SetIdle(delegate_id_1, true);
   int delegate_id_2 = delegate_manager_->AddObserver(&observer_2_);
   delegate_manager_->SetIdle(delegate_id_2, true);
   RunLoopOnce();

   // Just adding a third idle observer should suspend all idle players.
   EXPECT_CALL(observer_1_, OnIdleTimeout());
   EXPECT_CALL(observer_2_, OnIdleTimeout());
   int delegate_id_3 = delegate_manager_->AddObserver(&observer_3_);
   delegate_manager_->SetIdle(delegate_id_3, true);
   EXPECT_CALL(observer_3_, OnIdleTimeout());
   tick_clock_.Advance(base::TimeDelta::FromMicroseconds(1));
   RunLoopOnce();
 }

 TEST_F(RendererWebMediaPlayerDelegateTest,
        SuspendRequestsAreOnlySentOnceIfHandled) {
   int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
   delegate_manager_->SetIdle(delegate_id_1, true);
   EXPECT_CALL(observer_1_, OnIdleTimeout());
   tick_clock_.Advance(kIdleTimeout + base::TimeDelta::FromMicroseconds(1));
   base::RunLoop().RunUntilIdle();
 }

 TEST_F(RendererWebMediaPlayerDelegateTest, IdleDelegatesAreSuspended) {
   // Add one non-idle observer and one idle observer.
   const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
   const int delegate_id_2 = delegate_manager_->AddObserver(&observer_2_);
   delegate_manager_->SetIdle(delegate_id_2, true);

   // The idle cleanup task should suspend the second delegate while the first is
   // kept alive.
   {
     EXPECT_CALL(observer_2_, OnIdleTimeout());
     tick_clock_.Advance(kIdleTimeout + base::TimeDelta::FromMicroseconds(1));
     RunLoopOnce();
   }

   // Once the player is idle, it should be suspended after |kIdleTimeout|.
   delegate_manager_->SetIdle(delegate_id_1, true);
   {
     EXPECT_CALL(observer_1_, OnIdleTimeout());
     tick_clock_.Advance(kIdleTimeout + base::TimeDelta::FromMicroseconds(1));
     RunLoopOnce();
   }
 }

 #if defined(OS_ANDROID)

 TEST_F(RendererWebMediaPlayerDelegateTest, Histograms) {
   NiceMock<MockWebMediaPlayerDelegateObserver> observer;
   int delegate_id = delegate_manager_->AddObserver(&observer);
   base::HistogramTester histogram_tester;
   histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 0);

   // Play/pause while not hidden doesn't record anything.
   delegate_manager_->DidPlay(delegate_id, true, true,
                              MediaContentType::Persistent);
   RunLoopOnce();
   delegate_manager_->DidPause(delegate_id);
   RunLoopOnce();
   histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 0);

   // Play/pause while hidden does.
   delegate_manager_->SetFrameHiddenForTesting(true);
   delegate_manager_->DidPlay(delegate_id, true, true,
                              MediaContentType::Persistent);
   RunLoopOnce();
   delegate_manager_->DidPause(delegate_id);
   RunLoopOnce();
   histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 1);

   // As does ending background playback by becoming visible.
   delegate_manager_->SetFrameHiddenForTesting(true);
   delegate_manager_->DidPlay(delegate_id, true, true,
                              MediaContentType::Persistent);
   RunLoopOnce();
   delegate_manager_->SetFrameHiddenForTesting(false);
   RunLoopOnce();
   histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 2);
 }

 #endif  // OS_ANDROID

 }  // namespace media
	// Copyright 2016 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 <tuple>

	#include "base/bind.h"
	#include "base/bind_helpers.h"
	#include "base/location.h"
	#include "base/run_loop.h"
	#include "base/single_thread_task_runner.h"
	#include "base/test/histogram_tester.h"
	#include "base/test/simple_test_tick_clock.h"
	#include "base/threading/thread_task_runner_handle.h"
	#include "content/common/media/media_player_delegate_messages.h"
	#include "content/public/renderer/render_view.h"
	#include "content/public/test/render_view_test.h"
	#include "content/renderer/media/renderer_webmediaplayer_delegate.h"
	#include "content/renderer/render_process.h"
	#include "testing/gmock/include/gmock/gmock.h"
	#include "testing/gtest/include/gtest/gtest.h"

	using testing::NiceMock;
	using testing::Return;
	using testing::StrictMock;

	namespace media {

	namespace {
	constexpr base::TimeDelta kIdleTimeout = base::TimeDelta::FromSeconds(1);
	}

	class MockWebMediaPlayerDelegateObserver
	: public WebMediaPlayerDelegate::Observer {
	public:
	MockWebMediaPlayerDelegateObserver() {}
	~MockWebMediaPlayerDelegateObserver() {}

	// WebMediaPlayerDelegate::Observer implementation.
	MOCK_METHOD0(OnFrameHidden, void());
	MOCK_METHOD0(OnFrameClosed, void());
	MOCK_METHOD0(OnFrameShown, void());
	MOCK_METHOD0(OnIdleTimeout, void());
	MOCK_METHOD0(OnPlay, void());
	MOCK_METHOD0(OnPause, void());
	MOCK_METHOD1(OnVolumeMultiplierUpdate, void(double));
	MOCK_METHOD1(OnBecamePersistentVideo, void(bool));
	};

	class RendererWebMediaPlayerDelegateTest : public content::RenderViewTest {
	public:
	RendererWebMediaPlayerDelegateTest() {}
	~RendererWebMediaPlayerDelegateTest() override {}

	void SetUp() override {
	RenderViewTest::SetUp();
	// Start the tick clock off at a non-null value.
	tick_clock_.Advance(base::TimeDelta::FromSeconds(1234));
	delegate_manager_.reset(
	new RendererWebMediaPlayerDelegate(view_->GetMainRenderFrame()));
	delegate_manager_->SetIdleCleanupParamsForTesting(kIdleTimeout,
	&tick_clock_, false);
	}

	void TearDown() override {
	delegate_manager_.reset();
	RenderViewTest::TearDown();
	}

	protected:
	IPC::TestSink& test_sink() { return render_thread_->sink(); }

	void CallOnMediaDelegatePlay(int delegate_id) {
	delegate_manager_->OnMediaDelegatePlay(delegate_id);
	}

	void CallOnMediaDelegatePause(int delegate_id) {
	delegate_manager_->OnMediaDelegatePause(delegate_id);
	}

	void SetIsLowEndDeviceForTesting() {
	delegate_manager_->SetIdleCleanupParamsForTesting(kIdleTimeout,
	&tick_clock_, true);
	}

	void RunLoopOnce() {
	base::RunLoop run_loop;
	base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
	run_loop.QuitClosure());
	run_loop.Run();
	}

	std::unique_ptr<RendererWebMediaPlayerDelegate> delegate_manager_;
	StrictMock<MockWebMediaPlayerDelegateObserver> observer_1_, observer_2_,
	observer_3_;
	base::SimpleTestTickClock tick_clock_;

	private:
	DISALLOW_COPY_AND_ASSIGN(RendererWebMediaPlayerDelegateTest);
	};

	TEST_F(RendererWebMediaPlayerDelegateTest, SendsMessagesCorrectly) {
	StrictMock<MockWebMediaPlayerDelegateObserver> observer;
	const int delegate_id = delegate_manager_->AddObserver(&observer);

	// Verify the playing message.
	{
	const bool kHasVideo = true, kHasAudio = false, kIsRemote = false;
	const media::MediaContentType kMediaContentType =
	media::MediaContentType::Transient;
	delegate_manager_->DidPlay(delegate_id, kHasVideo, kHasAudio,
	kMediaContentType);

	const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
	MediaPlayerDelegateHostMsg_OnMediaPlaying::ID);
	ASSERT_TRUE(msg);

	std::tuple<int, bool, bool, bool, media::MediaContentType> result;
	ASSERT_TRUE(MediaPlayerDelegateHostMsg_OnMediaPlaying::Read(msg, &result));
	EXPECT_EQ(delegate_id, std::get<0>(result));
	EXPECT_EQ(kHasVideo, std::get<1>(result));
	EXPECT_EQ(kHasAudio, std::get<2>(result));
	EXPECT_EQ(kIsRemote, std::get<3>(result));
	EXPECT_EQ(kMediaContentType, std::get<4>(result));
	}

	// Verify the paused message.
	{
	test_sink().ClearMessages();
	const bool kReachedEndOfStream = false;
	delegate_manager_->DidPause(delegate_id);

	const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
	MediaPlayerDelegateHostMsg_OnMediaPaused::ID);
	ASSERT_TRUE(msg);

	std::tuple<int, bool> result;
	ASSERT_TRUE(MediaPlayerDelegateHostMsg_OnMediaPaused::Read(msg, &result));
	EXPECT_EQ(delegate_id, std::get<0>(result));
	EXPECT_EQ(kReachedEndOfStream, std::get<1>(result));
	}

	// Verify the destruction message.
	{
	test_sink().ClearMessages();
	delegate_manager_->PlayerGone(delegate_id);
	const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
	MediaPlayerDelegateHostMsg_OnMediaDestroyed::ID);
	ASSERT_TRUE(msg);

	std::tuple<int> result;
	ASSERT_TRUE(
	MediaPlayerDelegateHostMsg_OnMediaDestroyed::Read(msg, &result));
	EXPECT_EQ(delegate_id, std::get<0>(result));
	}

	// Verify the resize message.
	{
	test_sink().ClearMessages();
	delegate_manager_->DidPlayerSizeChange(delegate_id, gfx::Size(16, 9));
	const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
	MediaPlayerDelegateHostMsg_OnMediaSizeChanged::ID);
	ASSERT_TRUE(msg);

	std::tuple<int, gfx::Size> result;
	ASSERT_TRUE(
	MediaPlayerDelegateHostMsg_OnMediaSizeChanged::Read(msg, &result));
	EXPECT_EQ(delegate_id, std::get<0>(result));
	EXPECT_EQ(16, std::get<1>(result).width());
	EXPECT_EQ(9, std::get<1>(result).height());
	}

	// Verify the muted status message.
	{
	test_sink().ClearMessages();
	delegate_manager_->DidPlayerMutedStatusChange(delegate_id, true);
	const IPC::Message* msg = test_sink().GetUniqueMessageMatching(
	MediaPlayerDelegateHostMsg_OnMutedStatusChanged::ID);
	ASSERT_TRUE(msg);

	std::tuple<int, bool> result;
	ASSERT_TRUE(
	MediaPlayerDelegateHostMsg_OnMutedStatusChanged::Read(msg, &result));
	EXPECT_EQ(delegate_id, std::get<0>(result));
	EXPECT_TRUE(std::get<1>(result));
	}
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, DeliversObserverNotifications) {
	const int delegate_id = delegate_manager_->AddObserver(&observer_1_);

	EXPECT_CALL(observer_1_, OnFrameHidden());
	delegate_manager_->WasHidden();

	EXPECT_CALL(observer_1_, OnFrameShown());
	delegate_manager_->WasShown();

	EXPECT_CALL(observer_1_, OnPause());
	MediaPlayerDelegateMsg_Pause pause_msg(0, delegate_id);
	delegate_manager_->OnMessageReceived(pause_msg);

	EXPECT_CALL(observer_1_, OnPlay());
	MediaPlayerDelegateMsg_Play play_msg(0, delegate_id);
	delegate_manager_->OnMessageReceived(play_msg);

	const double kTestMultiplier = 0.5;
	EXPECT_CALL(observer_1_, OnVolumeMultiplierUpdate(kTestMultiplier));
	MediaPlayerDelegateMsg_UpdateVolumeMultiplier volume_msg(0, delegate_id,
	kTestMultiplier);
	delegate_manager_->OnMessageReceived(volume_msg);

	EXPECT_CALL(observer_1_, OnFrameClosed());
	MediaPlayerDelegateMsg_SuspendAllMediaPlayers suspend_msg(0);
	delegate_manager_->OnMessageReceived(suspend_msg);
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, TheTimerIsInitiallyStopped) {
	ASSERT_FALSE(delegate_manager_->IsIdleCleanupTimerRunningForTesting());
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, AddingAnIdleObserverStartsTheTimer) {
	const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
	delegate_manager_->SetIdle(delegate_id_1, true);
	RunLoopOnce();
	ASSERT_TRUE(delegate_manager_->IsIdleCleanupTimerRunningForTesting());
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, RemovingAllObserversStopsTheTimer) {
	const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
	delegate_manager_->SetIdle(delegate_id_1, true);
	RunLoopOnce();
	delegate_manager_->RemoveObserver(delegate_id_1);
	RunLoopOnce();
	ASSERT_FALSE(delegate_manager_->IsIdleCleanupTimerRunningForTesting());
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, PlaySuspendsLowEndIdleDelegates) {
	SetIsLowEndDeviceForTesting();

	const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
	delegate_manager_->SetIdle(delegate_id_1, true);
	const int delegate_id_2 = delegate_manager_->AddObserver(&observer_2_);
	delegate_manager_->SetIdle(delegate_id_2, true);
	RunLoopOnce();

	// Calling play on the first player should suspend the other idle player.
	EXPECT_CALL(observer_2_, OnIdleTimeout());
	delegate_manager_->DidPlay(delegate_id_1, true, true,
	media::MediaContentType::Persistent);
	delegate_manager_->SetIdle(delegate_id_1, false);
	tick_clock_.Advance(base::TimeDelta::FromMicroseconds(1));
	RunLoopOnce();
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, MaxLowEndIdleDelegates) {
	SetIsLowEndDeviceForTesting();

	int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
	delegate_manager_->SetIdle(delegate_id_1, true);
	int delegate_id_2 = delegate_manager_->AddObserver(&observer_2_);
	delegate_manager_->SetIdle(delegate_id_2, true);
	RunLoopOnce();

	// Just adding a third idle observer should suspend all idle players.
	EXPECT_CALL(observer_1_, OnIdleTimeout());
	EXPECT_CALL(observer_2_, OnIdleTimeout());
	int delegate_id_3 = delegate_manager_->AddObserver(&observer_3_);
	delegate_manager_->SetIdle(delegate_id_3, true);
	EXPECT_CALL(observer_3_, OnIdleTimeout());
	tick_clock_.Advance(base::TimeDelta::FromMicroseconds(1));
	RunLoopOnce();
	}

	TEST_F(RendererWebMediaPlayerDelegateTest,
	SuspendRequestsAreOnlySentOnceIfHandled) {
	int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
	delegate_manager_->SetIdle(delegate_id_1, true);
	EXPECT_CALL(observer_1_, OnIdleTimeout());
	tick_clock_.Advance(kIdleTimeout + base::TimeDelta::FromMicroseconds(1));
	base::RunLoop().RunUntilIdle();
	}

	TEST_F(RendererWebMediaPlayerDelegateTest, IdleDelegatesAreSuspended) {
	// Add one non-idle observer and one idle observer.
	const int delegate_id_1 = delegate_manager_->AddObserver(&observer_1_);
	const int delegate_id_2 = delegate_manager_->AddObserver(&observer_2_);
	delegate_manager_->SetIdle(delegate_id_2, true);

	// The idle cleanup task should suspend the second delegate while the first is
	// kept alive.
	{
	EXPECT_CALL(observer_2_, OnIdleTimeout());
	tick_clock_.Advance(kIdleTimeout + base::TimeDelta::FromMicroseconds(1));
	RunLoopOnce();
	}

	// Once the player is idle, it should be suspended after \|kIdleTimeout\|.
	delegate_manager_->SetIdle(delegate_id_1, true);
	{
	EXPECT_CALL(observer_1_, OnIdleTimeout());
	tick_clock_.Advance(kIdleTimeout + base::TimeDelta::FromMicroseconds(1));
	RunLoopOnce();
	}
	}

	#if defined(OS_ANDROID)

	TEST_F(RendererWebMediaPlayerDelegateTest, Histograms) {
	NiceMock<MockWebMediaPlayerDelegateObserver> observer;
	int delegate_id = delegate_manager_->AddObserver(&observer);
	base::HistogramTester histogram_tester;
	histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 0);

	// Play/pause while not hidden doesn't record anything.
	delegate_manager_->DidPlay(delegate_id, true, true,
	MediaContentType::Persistent);
	RunLoopOnce();
	delegate_manager_->DidPause(delegate_id);
	RunLoopOnce();
	histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 0);

	// Play/pause while hidden does.
	delegate_manager_->SetFrameHiddenForTesting(true);
	delegate_manager_->DidPlay(delegate_id, true, true,
	MediaContentType::Persistent);
	RunLoopOnce();
	delegate_manager_->DidPause(delegate_id);
	RunLoopOnce();
	histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 1);

	// As does ending background playback by becoming visible.
	delegate_manager_->SetFrameHiddenForTesting(true);
	delegate_manager_->DidPlay(delegate_id, true, true,
	MediaContentType::Persistent);
	RunLoopOnce();
	delegate_manager_->SetFrameHiddenForTesting(false);
	RunLoopOnce();
	histogram_tester.ExpectTotalCount("Media.Android.BackgroundVideoTime", 2);
	}

	#endif // OS_ANDROID

	} // namespace media