Propagate audible state from player to the containing tab

media/base/android/media_player_android.h

 // Copyright (c) 2013 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.
 
 #ifndef MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
 #define MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
 
 #include <jni.h>
 #include <string>
 
@@ skipping 84 matching lines @@
   MediaPlayerAndroid(int player_id,
                      MediaPlayerManager* manager,
                      const RequestMediaResourcesCB& request_media_resources_cb,
                      const GURL& frame_url);
 
   // Attach/Detaches |listener_| for listening to all the media events. If
   // |j_media_player| is NULL, |listener_| only listens to the system media
   // events. Otherwise, it also listens to the events from |j_media_player|.
   void AttachListener(jobject j_media_player);
   void DetachListener();
+  void SetAudible(bool is_audible);
 
   MediaPlayerManager* manager() { return manager_; }
 
   RequestMediaResourcesCB request_media_resources_cb_;
 
  private:
   // Player ID assigned to this player.
   int player_id_;
 
   // Resource manager for all the media players.
   MediaPlayerManager* manager_;
 
   // Url for the frame that contains this player.
   GURL frame_url_;
 
   // Listener object that listens to all the media player events.
   scoped_ptr<MediaPlayerListener> listener_;
 
   // Weak pointer passed to |listener_| for callbacks.
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaPlayerAndroid> weak_factory_;
 
+  // Maintains the audible state of the player, true if it is playing sound.
+  bool is_audible_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaPlayerAndroid);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_