New API on java's MediaPlayer to suspend/resume a session.

related-to-bug: 2231576
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index c9cae35..2408c62 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -222,6 +222,8 @@
         virtual status_t        getMetadata(bool update_only,
                                             bool apply_filter,
                                             Parcel *reply);
+        virtual status_t        suspend();
+        virtual status_t        resume();
 
         sp<MediaPlayerBase>     createPlayer(player_type playerType);