NOT FOR LANDING Implement WebMediaSession

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 3f07a9319a866b8b88a562a528159b0f8e7eef88..da8682b5b3084f5ea177da25322bde491ee023f2 100644
--- a/media/base/android/media_player_android.h
+++ b/media/base/android/media_player_android.h
@@ -98,6 +98,8 @@ class MEDIA_EXPORT MediaPlayerAndroid {
 
   int player_id() { return player_id_; }
 
+  int session_id() { return session_id_; }
+
   GURL frame_url() { return frame_url_; }
 
   // Attach/Detaches |listener_| for listening to all the media events. If
@@ -111,7 +113,8 @@ 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 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
@@ -155,6 +158,9 @@ class MEDIA_EXPORT MediaPlayerAndroid {
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaPlayerAndroid> weak_factory_;
 
+  // Media session ID assigned to this player
+  int session_id_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaPlayerAndroid);
 };