Revert of Revert of Propagate audible state from player to the containing tab"

media/base/android/media_source_player_unittest.cc

Index: media/base/android/media_source_player_unittest.cc
diff --git a/media/base/android/media_source_player_unittest.cc b/media/base/android/media_source_player_unittest.cc
index 9ac934eebd52cb7cb15c2080662e93277bb234dc..6750537744301a296d3918f32fcfd7283e9dcff7 100644
--- a/media/base/android/media_source_player_unittest.cc
+++ b/media/base/android/media_source_player_unittest.cc
@@ -75,6 +75,7 @@ class MockMediaPlayerManager : public MediaPlayerManager {
                       const base::TimeDelta& current_time) override {}
   void OnError(int player_id, int error) override {}
   void OnVideoSizeChanged(int player_id, int width, int height) override {}
+  void OnAudibleStateChanged(int player_id, bool is_audible_now) override {}
   MediaPlayerAndroid* GetFullscreenPlayer() override { return NULL; }
   MediaPlayerAndroid* GetPlayer(int player_id) override { return NULL; }
   void RequestFullScreen(int player_id) override {}