Propagate media session id into MediaPlayerAndroid

media/base/android/media_player_android.h

Index: media/base/android/media_player_android.h
diff --git a/media/base/android/media_player_android.h b/media/base/android/media_player_android.h
index 16982d69c8cd8f73716f1c6ca76e9d2b12d526d6..950a5dc4b42505c9ba9bd141f4c5044e8ca37949 100644
--- a/media/base/android/media_player_android.h
+++ b/media/base/android/media_player_android.h
@@ -108,6 +108,8 @@ class MEDIA_EXPORT MediaPlayerAndroid {
 
   GURL frame_url() { return frame_url_; }
 
+  int media_session_id() { return media_session_id_; }
+
   // 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|.
@@ -119,7 +121,8 @@ class MEDIA_EXPORT MediaPlayerAndroid {
       int player_id,
       MediaPlayerManager* manager,
       const OnDecoderResourcesReleasedCB& on_decoder_resources_released_cb,
-      const GURL& frame_url);
+      const GURL& frame_url,
+      int media_session_id);
 
   // TODO(qinmin): Simplify the MediaPlayerListener class to only listen to
   // media interrupt events. And have a separate child class to listen to all
@@ -170,6 +173,9 @@ class MEDIA_EXPORT MediaPlayerAndroid {
   // Url for the frame that contains this player.
   GURL frame_url_;
 
+  // Media session ID assigned to this player.
+  int media_session_id_;
+
   // Listener object that listens to all the media player events.
   scoped_ptr<MediaPlayerListener> listener_;