MediaCodecPlayer (stage 1 - play/pause only)

media/base/android/media_player_android.cc

Index: media/base/android/media_player_android.cc
diff --git a/media/base/android/media_player_android.cc b/media/base/android/media_player_android.cc
index 60e1dfc0f823268042381b5e4514931290c3d2b8..99668e8122fa1d3afa52e4eb411fe0ef4021d783 100644
--- a/media/base/android/media_player_android.cc
+++ b/media/base/android/media_player_android.cc
@@ -98,4 +98,8 @@ void MediaPlayerAndroid::SetAudible(bool is_audible) {
   }
 }
 
+base::WeakPtr<MediaPlayerAndroid> MediaPlayerAndroid::WeakPtrForUIThread() {
+  return weak_factory_.GetWeakPtr();
+}
+
 }  // namespace media