Split MediaContentType and AudioFocusType

content/browser/media/session/media_session_browsertest.cc

 // Copyright 2015 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 "content/browser/media/session/media_session.h"
 
 #include <stddef.h>
 
 #include <list>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/test/histogram_tester.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "content/browser/media/session/media_session_delegate.h"
 #include "content/browser/media/session/mock_media_session_observer.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/test/content_browser_test.h"
 #include "content/shell/browser/shell.h"
+#include "media/base/media_content_type.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 using content::WebContents;
 using content::WebContentsObserver;
 using content::MediaSession;
 using content::MediaSessionDelegate;
 using content::MediaSessionObserver;
 using content::MediaSessionUmaHelper;
 using content::MockMediaSessionObserver;
 
 using ::testing::Expectation;
 
 namespace {
 
 class MockMediaSessionDelegate : public MediaSessionDelegate {
  public:
-  bool RequestAudioFocus(MediaSession::Type) override {
-    return true;
-  }
+  bool RequestAudioFocus(MediaSession::AudioFocusType) override { return true; }
 
   void AbandonAudioFocus() override {
   }
 };
 
 class MockWebContentsObserver : public WebContentsObserver {
  public:
   MockWebContentsObserver(WebContents* web_contents)
       : WebContentsObserver(web_contents) {}
 
@@ skipping 22 matching lines @@
   void TearDownOnMainThread() override {
     mock_web_contents_observer_.reset();
 
     media_session_->RemoveAllPlayersForTest();
     media_session_ = nullptr;
 
     ContentBrowserTest::TearDownOnMainThread();
   }
 
   void StartNewPlayer(MockMediaSessionObserver* media_session_observer,
-                      MediaSession::Type type) {
+                      media::MediaContentType type) {
     bool result = AddPlayer(
         media_session_observer,
         media_session_observer->StartNewPlayer(),
         type);
     EXPECT_TRUE(result);
   }
 
   bool AddPlayer(MockMediaSessionObserver* media_session_observer,
                  int player_id,
-                 MediaSession::Type type) {
+                 media::MediaContentType type) {
     return media_session_->AddPlayer(media_session_observer, player_id, type);
   }
 
   void RemovePlayer(MockMediaSessionObserver* media_session_observer,
                     int player_id) {
     media_session_->RemovePlayer(media_session_observer, player_id);
   }
 
   void RemovePlayers(MockMediaSessionObserver* media_session_observer) {
     media_session_->RemovePlayers(media_session_observer);
   }
 
   void OnPlayerPaused(MockMediaSessionObserver* media_session_observer,
                       int player_id) {
     media_session_->OnPlayerPaused(media_session_observer, player_id);
   }
 
   bool HasAudioFocus() { return media_session_->IsActiveForTest(); }
 
-  MediaSession::Type GetSessionType() {
+  MediaSession::AudioFocusType GetSessionType() {
     return media_session_->audio_focus_type_for_test();
   }
 
   bool IsControllable() { return media_session_->IsControllable(); }
 
   bool IsSuspended() { return media_session_->IsSuspended(); }
 
   void UIResume() {
     media_session_->Resume(MediaSession::SuspendType::UI);
   }
@@ skipping 34 matching lines @@
   std::unique_ptr<MockWebContentsObserver> mock_web_contents_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaSessionBrowserTest);
 };
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        PlayersFromSameObserverDoNotStopEachOtherInSameSession) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(media_session_observer->IsPlaying(0));
   EXPECT_TRUE(media_session_observer->IsPlaying(1));
   EXPECT_TRUE(media_session_observer->IsPlaying(2));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        PlayersFromManyObserverDoNotStopEachOtherInSameSession) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_1(
       new MockMediaSessionObserver);
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_2(
       new MockMediaSessionObserver);
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_3(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer_1.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_2.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_3.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer_1.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_2.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_3.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(media_session_observer_1->IsPlaying(0));
   EXPECT_TRUE(media_session_observer_2->IsPlaying(0));
   EXPECT_TRUE(media_session_observer_3->IsPlaying(0));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        SuspendedMediaSessionStopsPlayers) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
 
   EXPECT_FALSE(media_session_observer->IsPlaying(0));
   EXPECT_FALSE(media_session_observer->IsPlaying(1));
   EXPECT_FALSE(media_session_observer->IsPlaying(2));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ResumedMediaSessionRestartsPlayers) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
   SystemResume();
 
   EXPECT_TRUE(media_session_observer->IsPlaying(0));
   EXPECT_TRUE(media_session_observer->IsPlaying(1));
   EXPECT_TRUE(media_session_observer->IsPlaying(2));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        StartedPlayerOnSuspendedSessionPlaysAlone) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(media_session_observer->IsPlaying(0));
 
   SystemSuspend(true);
 
   EXPECT_FALSE(media_session_observer->IsPlaying(0));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_FALSE(media_session_observer->IsPlaying(0));
   EXPECT_TRUE(media_session_observer->IsPlaying(1));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_FALSE(media_session_observer->IsPlaying(0));
   EXPECT_TRUE(media_session_observer->IsPlaying(1));
   EXPECT_TRUE(media_session_observer->IsPlaying(2));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        MediaSessionSetVolumeMultiplier) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   double volume_multiplier = 0.2f;
   SystemSetVolumeMultiplier(volume_multiplier);
 
   EXPECT_EQ(volume_multiplier, media_session_observer->GetVolumeMultiplier(0));
   EXPECT_EQ(volume_multiplier, media_session_observer->GetVolumeMultiplier(1));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_EQ(volume_multiplier, media_session_observer->GetVolumeMultiplier(2));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, AudioFocusInitialState) {
   EXPECT_FALSE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, StartPlayerGivesFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, SuspendGivesAwayAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
 
   EXPECT_FALSE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, StopGivesAwayAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   EXPECT_FALSE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ResumeGivesBackAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
   SystemResume();
 
   EXPECT_TRUE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        RemovingLastPlayerDropsAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayer(media_session_observer.get(), 0);
   EXPECT_TRUE(HasAudioFocus());
   RemovePlayer(media_session_observer.get(), 1);
   EXPECT_TRUE(HasAudioFocus());
   RemovePlayer(media_session_observer.get(), 2);
   EXPECT_FALSE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        RemovingLastPlayerFromManyObserversDropsAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_1(
       new MockMediaSessionObserver);
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_2(
       new MockMediaSessionObserver);
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_3(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer_1.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_2.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_3.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer_1.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_2.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_3.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayer(media_session_observer_1.get(), 0);
   EXPECT_TRUE(HasAudioFocus());
   RemovePlayer(media_session_observer_2.get(), 0);
   EXPECT_TRUE(HasAudioFocus());
   RemovePlayer(media_session_observer_3.get(), 0);
   EXPECT_FALSE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        RemovingAllPlayersFromObserversDropsAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_1(
       new MockMediaSessionObserver);
   std::unique_ptr<MockMediaSessionObserver> media_session_observer_2(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer_1.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_1.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_2.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer_2.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer_1.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_1.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_2.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer_2.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayers(media_session_observer_1.get());
   EXPECT_TRUE(HasAudioFocus());
   RemovePlayers(media_session_observer_2.get());
   EXPECT_FALSE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ResumePlayGivesAudioFocus) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayer(media_session_observer.get(), 0);
   EXPECT_FALSE(HasAudioFocus());
 
-  EXPECT_TRUE(
-      AddPlayer(media_session_observer.get(), 0, MediaSession::Type::Content));
+  EXPECT_TRUE(AddPlayer(media_session_observer.get(), 0,
+                        media::MediaContentType::Content));
   EXPECT_TRUE(HasAudioFocus());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ResumeSuspendAreSentOnlyOncePerPlayers) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_EQ(0, media_session_observer->received_suspend_calls());
   EXPECT_EQ(0, media_session_observer->received_resume_calls());
 
   SystemSuspend(true);
   EXPECT_EQ(3, media_session_observer->received_suspend_calls());
 
   SystemResume();
   EXPECT_EQ(3, media_session_observer->received_resume_calls());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ResumeSuspendAreSentOnlyOncePerPlayersAddedTwice) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   // Adding the three players above again.
-  EXPECT_TRUE(
-      AddPlayer(media_session_observer.get(), 0, MediaSession::Type::Content));
-  EXPECT_TRUE(
-      AddPlayer(media_session_observer.get(), 1, MediaSession::Type::Content));
-  EXPECT_TRUE(
-      AddPlayer(media_session_observer.get(), 2, MediaSession::Type::Content));
+  EXPECT_TRUE(AddPlayer(media_session_observer.get(), 0,
+                        media::MediaContentType::Content));
+  EXPECT_TRUE(AddPlayer(media_session_observer.get(), 1,
+                        media::MediaContentType::Content));
+  EXPECT_TRUE(AddPlayer(media_session_observer.get(), 2,
+                        media::MediaContentType::Content));
 
   EXPECT_EQ(0, media_session_observer->received_suspend_calls());
   EXPECT_EQ(0, media_session_observer->received_resume_calls());
 
   SystemSuspend(true);
   EXPECT_EQ(3, media_session_observer->received_suspend_calls());
 
   SystemResume();
   EXPECT_EQ(3, media_session_observer->received_resume_calls());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        RemovingTheSamePlayerTwiceIsANoop) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayer(media_session_observer.get(), 0);
   RemovePlayer(media_session_observer.get(), 0);
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, MediaSessionType) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
   // Starting a player with a given type should set the session to that type.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
-  EXPECT_EQ(MediaSession::Type::Transient, GetSessionType());
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
+  EXPECT_EQ(MediaSession::AudioFocusType::Transient, GetSessionType());
 
   // Adding a player of the same type should have no effect on the type.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
-  EXPECT_EQ(MediaSession::Type::Transient, GetSessionType());
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
+  EXPECT_EQ(MediaSession::AudioFocusType::Transient, GetSessionType());
 
   // Adding a player of Content type should override the current type.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  EXPECT_EQ(MediaSession::Type::Content, GetSessionType());
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  EXPECT_EQ(MediaSession::AudioFocusType::Content, GetSessionType());
 
   // Adding a player of the Transient type should have no effect on the type.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
-  EXPECT_EQ(MediaSession::Type::Content, GetSessionType());
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
+  EXPECT_EQ(MediaSession::AudioFocusType::Content, GetSessionType());
 
   EXPECT_TRUE(media_session_observer->IsPlaying(0));
   EXPECT_TRUE(media_session_observer->IsPlaying(1));
   EXPECT_TRUE(media_session_observer->IsPlaying(2));
   EXPECT_TRUE(media_session_observer->IsPlaying(3));
 
   SystemSuspend(true);
 
   EXPECT_FALSE(media_session_observer->IsPlaying(0));
   EXPECT_FALSE(media_session_observer->IsPlaying(1));
   EXPECT_FALSE(media_session_observer->IsPlaying(2));
   EXPECT_FALSE(media_session_observer->IsPlaying(3));
 
-  EXPECT_EQ(MediaSession::Type::Content, GetSessionType());
+  EXPECT_EQ(MediaSession::AudioFocusType::Content, GetSessionType());
 
   SystemResume();
 
   EXPECT_TRUE(media_session_observer->IsPlaying(0));
   EXPECT_TRUE(media_session_observer->IsPlaying(1));
   EXPECT_TRUE(media_session_observer->IsPlaying(2));
   EXPECT_TRUE(media_session_observer->IsPlaying(3));
 
-  EXPECT_EQ(MediaSession::Type::Content, GetSessionType());
+  EXPECT_EQ(MediaSession::AudioFocusType::Content, GetSessionType());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ControlsShowForContent) {
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_));
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
   // Starting a player with a content type should show the media controls.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ControlsNoShowForTransient) {
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, false, testing::_));
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
   // Starting a player with a transient type should not show the media controls.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
 
   EXPECT_FALSE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ControlsHideWhenStopped) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, true, testing::_))
       .After(showControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayers(media_session_observer.get());
 
   EXPECT_FALSE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ControlsShownAcceptTransient) {
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_));
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   // Transient player join the session without affecting the controls.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsShownAfterContentAdded) {
   Expectation dontShowControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(false, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_))
       .After(dontShowControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
 
   // The controls are shown when the content player is added.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsStayIfOnlyOnePlayerHasBeenPaused) {
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_));
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
 
   // Removing only content player doesn't hide the controls since the session
   // is still active.
   RemovePlayer(media_session_observer.get(), 0);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsHideWhenTheLastPlayerIsRemoved) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, true, testing::_))
       .After(showControls);
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayer(media_session_observer.get(), 0);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 
   RemovePlayer(media_session_observer.get(), 1);
 
   EXPECT_FALSE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsHideWhenAllThePlayersAreRemoved) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, true, testing::_))
       .After(showControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   RemovePlayers(media_session_observer.get());
 
   EXPECT_FALSE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsNotHideWhenTheLastPlayerIsPaused) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, true, testing::_))
       .After(showControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   OnPlayerPaused(media_session_observer.get(), 0);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 
   OnPlayerPaused(media_session_observer.get(), 1);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        SuspendTemporaryUpdatesControls) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, true, testing::_))
       .After(showControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ControlsUpdatedWhenResumed) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   Expectation pauseControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, true, testing::_)).After(showControls);
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_))
       .After(pauseControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   SystemSuspend(true);
   SystemResume();
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsHideWhenSessionSuspendedPermanently) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, true, testing::_))
       .After(showControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(false);
 
   EXPECT_FALSE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ConstrolsHideWhenSessionStops) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   Expectation pauseControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, true, testing::_)).After(showControls);
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, true, testing::_))
       .After(pauseControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   EXPECT_FALSE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsHideWhenSessionChangesFromContentToTransient) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   Expectation pauseControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, true, testing::_)).After(showControls);
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(false, false, testing::_))
       .After(pauseControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   SystemSuspend(true);
 
   // This should reset the session and change it to a transient, so
   // hide the controls.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Transient);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Transient);
 
   EXPECT_FALSE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsUpdatedWhenNewPlayerResetsSession) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   Expectation pauseControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, true, testing::_)).After(showControls);
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_))
       .After(pauseControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   SystemSuspend(true);
 
   // This should reset the session and update the controls.
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsResumedWhenPlayerIsResumed) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   Expectation pauseControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, true, testing::_)).After(showControls);
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_))
       .After(pauseControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   SystemSuspend(true);
 
   // This should resume the session and update the controls.
-  AddPlayer(media_session_observer.get(), 0, MediaSession::Type::Content);
+  AddPlayer(media_session_observer.get(), 0, media::MediaContentType::Content);
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsUpdatedDueToResumeSessionAction) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, true, testing::_))
       .After(showControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   UISuspend();
 
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        ControlsUpdatedDueToSuspendSessionAction) {
   Expectation showControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, false, testing::_));
   Expectation pauseControls = EXPECT_CALL(*mock_web_contents_observer(),
       MediaSessionStateChanged(true, true, testing::_)).After(showControls);
   EXPECT_CALL(*mock_web_contents_observer(),
               MediaSessionStateChanged(true, false, testing::_))
       .After(pauseControls);
 
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   UISuspend();
   UIResume();
 
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        DontResumeBySystemUISuspendedSessions) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   UISuspend();
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 
   SystemResume();
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        AllowUIResumeForSystemSuspend) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 
   UIResume();
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ResumeSuspendFromUI) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   UISuspend();
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 
   UIResume();
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, ResumeSuspendFromSystem) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   SystemSuspend(true);
   EXPECT_TRUE(IsControllable());
   EXPECT_TRUE(IsSuspended());
 
   SystemResume();
   EXPECT_TRUE(IsControllable());
   EXPECT_FALSE(IsSuspended());
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, UMA_Suspended_SystemTransient) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   SystemSuspend(true);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.Suspended"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(0)); // System Transient
   EXPECT_EQ(0, samples->GetCount(1)); // System Permanent
   EXPECT_EQ(0, samples->GetCount(2)); // UI
 }
 
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        UMA_Suspended_SystemPermantent) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   SystemSuspend(false);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.Suspended"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(0, samples->GetCount(0)); // System Transient
   EXPECT_EQ(1, samples->GetCount(1)); // System Permanent
   EXPECT_EQ(0, samples->GetCount(2)); // UI
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, UMA_Suspended_UI) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   UISuspend();
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.Suspended"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(0, samples->GetCount(0)); // System Transient
   EXPECT_EQ(0, samples->GetCount(1)); // System Permanent
   EXPECT_EQ(1, samples->GetCount(2)); // UI
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, UMA_Suspended_Multiple) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   UISuspend();
   UIResume();
 
   SystemSuspend(true);
   SystemResume();
 
   UISuspend();
   UIResume();
 
   SystemSuspend(false);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.Suspended"));
   EXPECT_EQ(4, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(0)); // System Transient
   EXPECT_EQ(1, samples->GetCount(1)); // System Permanent
   EXPECT_EQ(2, samples->GetCount(2)); // UI
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, UMA_Suspended_Crossing) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   UISuspend();
   SystemSuspend(true);
   SystemSuspend(false);
   UIResume();
 
   SystemSuspend(true);
   SystemSuspend(true);
   SystemSuspend(false);
   SystemResume();
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.Suspended"));
   EXPECT_EQ(2, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(0)); // System Transient
   EXPECT_EQ(0, samples->GetCount(1)); // System Permanent
   EXPECT_EQ(1, samples->GetCount(2)); // UI
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest, UMA_Suspended_Stop) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.Suspended"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(0, samples->GetCount(0)); // System Transient
   EXPECT_EQ(0, samples->GetCount(1)); // System Permanent
   EXPECT_EQ(1, samples->GetCount(2)); // UI
 }
 
@@ skipping 14 matching lines @@
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
   MediaSessionUmaHelper* media_session_uma_helper = GetMediaSessionUMAHelper();
   base::SimpleTestTickClock* clock = new base::SimpleTestTickClock();
   clock->SetNowTicks(base::TimeTicks::Now());
   media_session_uma_helper->SetClockForTest(
       std::unique_ptr<base::SimpleTestTickClock>(clock));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   clock->Advance(base::TimeDelta::FromMilliseconds(1000));
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.ActiveTime"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(1000));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        UMA_ActiveTime_ActivationWithUISuspension) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
   MediaSessionUmaHelper* media_session_uma_helper = GetMediaSessionUMAHelper();
   base::SimpleTestTickClock* clock = new base::SimpleTestTickClock();
   clock->SetNowTicks(base::TimeTicks::Now());
   media_session_uma_helper->SetClockForTest(
       std::unique_ptr<base::SimpleTestTickClock>(clock));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   clock->Advance(base::TimeDelta::FromMilliseconds(1000));
   UISuspend();
 
   clock->Advance(base::TimeDelta::FromMilliseconds(2000));
   UIResume();
 
   clock->Advance(base::TimeDelta::FromMilliseconds(1000));
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.ActiveTime"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(2000));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        UMA_ActiveTime_ActivationWithSystemSuspension) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
   MediaSessionUmaHelper* media_session_uma_helper = GetMediaSessionUMAHelper();
   base::SimpleTestTickClock* clock = new base::SimpleTestTickClock();
   clock->SetNowTicks(base::TimeTicks::Now());
   media_session_uma_helper->SetClockForTest(
       std::unique_ptr<base::SimpleTestTickClock>(clock));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
 
   clock->Advance(base::TimeDelta::FromMilliseconds(1000));
   SystemSuspend(true);
 
   clock->Advance(base::TimeDelta::FromMilliseconds(2000));
   SystemResume();
 
   clock->Advance(base::TimeDelta::FromMilliseconds(1000));
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.ActiveTime"));
   EXPECT_EQ(1, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(2000));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        UMA_ActiveTime_ActivateSuspendedButNotStopped) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
   MediaSessionUmaHelper* media_session_uma_helper = GetMediaSessionUMAHelper();
   base::SimpleTestTickClock* clock = new base::SimpleTestTickClock();
   clock->SetNowTicks(base::TimeTicks::Now());
   media_session_uma_helper->SetClockForTest(
       std::unique_ptr<base::SimpleTestTickClock>(clock));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   clock->Advance(base::TimeDelta::FromMilliseconds(500));
   SystemSuspend(true);
 
   {
     std::unique_ptr<base::HistogramSamples> samples(
         tester.GetHistogramSamplesSinceCreation("Media.Session.ActiveTime"));
     EXPECT_EQ(0, samples->TotalCount());
   }
 
   SystemResume();
@@ skipping 12 matching lines @@
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
   MediaSessionUmaHelper* media_session_uma_helper = GetMediaSessionUMAHelper();
   base::SimpleTestTickClock* clock = new base::SimpleTestTickClock();
   clock->SetNowTicks(base::TimeTicks::Now());
   media_session_uma_helper->SetClockForTest(
       std::unique_ptr<base::SimpleTestTickClock>(clock));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   clock->Advance(base::TimeDelta::FromMilliseconds(500));
   SystemSuspend(true);
   media_session_->Stop(MediaSession::SuspendType::UI);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   clock->Advance(base::TimeDelta::FromMilliseconds(5000));
   SystemResume();
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.ActiveTime"));
   EXPECT_EQ(2, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(500));
   EXPECT_EQ(1, samples->GetCount(5000));
 }
 
 IN_PROC_BROWSER_TEST_F(MediaSessionBrowserTest,
                        UMA_ActiveTime_MultipleActivations) {
   std::unique_ptr<MockMediaSessionObserver> media_session_observer(
       new MockMediaSessionObserver);
   base::HistogramTester tester;
 
   MediaSessionUmaHelper* media_session_uma_helper = GetMediaSessionUMAHelper();
   base::SimpleTestTickClock* clock = new base::SimpleTestTickClock();
   clock->SetNowTicks(base::TimeTicks::Now());
   media_session_uma_helper->SetClockForTest(
       std::unique_ptr<base::SimpleTestTickClock>(clock));
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   clock->Advance(base::TimeDelta::FromMilliseconds(10000));
   RemovePlayer(media_session_observer.get(), 0);
 
-  StartNewPlayer(media_session_observer.get(), MediaSession::Type::Content);
+  StartNewPlayer(media_session_observer.get(),
+                 media::MediaContentType::Content);
   clock->Advance(base::TimeDelta::FromMilliseconds(1000));
   media_session_->Stop(MediaSession::SuspendType::UI);
 
   std::unique_ptr<base::HistogramSamples> samples(
       tester.GetHistogramSamplesSinceCreation("Media.Session.ActiveTime"));
   EXPECT_EQ(2, samples->TotalCount());
   EXPECT_EQ(1, samples->GetCount(1000));
   EXPECT_EQ(1, samples->GetCount(10000));
 }