Reverted the code for the non-interactive audible tab notification

media/base/android/media_player_manager.h

Index: media/base/android/media_player_manager.h
diff --git a/media/base/android/media_player_manager.h b/media/base/android/media_player_manager.h
index bf6ca4e0734f8b092082910a3f34e6052c537143..5d50f58658a35749fcdfea521871f916f60b7da9 100644
--- a/media/base/android/media_player_manager.h
+++ b/media/base/android/media_player_manager.h
@@ -63,9 +63,6 @@ class MEDIA_EXPORT MediaPlayerManager {
   // Called when video size has changed. Args: player ID, width, height.
   virtual void OnVideoSizeChanged(int player_id, int width, int height) = 0;
 
-  // Called when the player thinks it stopped or started making sound.
-  virtual void OnAudibleStateChanged(int player_id, bool is_audible_now) = 0;
-
   // Called when the player pauses as a new key is required to decrypt
   // encrypted content.
   virtual void OnWaitingForDecryptionKey(int player_id) = 0;