Make media::AudioRenderer inherit from media::TimeSource.

media/base/mock_filters.h

Index: media/base/mock_filters.h
diff --git a/media/base/mock_filters.h b/media/base/mock_filters.h
index 1de94f0ac8598af8d9d9e96422452381b95b05f9..b1e816557c96d1119f16c497fad1d2afe6e08dd2 100644
--- a/media/base/mock_filters.h
+++ b/media/base/mock_filters.h
@@ -138,6 +138,13 @@ class MockAudioRenderer : public AudioRenderer {
   MockAudioRenderer();
   virtual ~MockAudioRenderer();
 
+  // TimeSource implementation.
+  MOCK_METHOD0(StartTicking, void());
+  MOCK_METHOD0(StopTicking, void());
+  MOCK_METHOD1(SetPlaybackRate, void(float));
+  MOCK_METHOD1(SetMediaTime, void(base::TimeDelta));
+  MOCK_METHOD0(CurrentMediaTime, base::TimeDelta());
+
   // AudioRenderer implementation.
   MOCK_METHOD7(Initialize, void(DemuxerStream* stream,
                                 const PipelineStatusCB& init_cb,
@@ -146,15 +153,10 @@ class MockAudioRenderer : public AudioRenderer {
                                 const BufferingStateCB& buffering_state_cb,
                                 const base::Closure& ended_cb,
                                 const PipelineStatusCB& error_cb));
-  MOCK_METHOD0(StartRendering, void());
-  MOCK_METHOD0(StopRendering, void());
-  MOCK_METHOD1(SetMediaTime, void(base::TimeDelta));
   MOCK_METHOD1(Flush, void(const base::Closure& callback));
   MOCK_METHOD1(Stop, void(const base::Closure& callback));
-  MOCK_METHOD1(SetPlaybackRate, void(float playback_rate));
   MOCK_METHOD0(StartPlaying, void());
   MOCK_METHOD1(SetVolume, void(float volume));
-  MOCK_METHOD0(ResumeAfterUnderflow, void());
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioRenderer);