cc: Video layers without a frame should not occlude

content/renderer/media/android/webmediaplayer_android.cc

Index: content/renderer/media/android/webmediaplayer_android.cc
diff --git a/content/renderer/media/android/webmediaplayer_android.cc b/content/renderer/media/android/webmediaplayer_android.cc
index 763bdaaa652d7da069bce350e666e9a271c5f41e..16f17f4702d92e0cc265c8d8a1cb2bf8fe9d7350 100644
--- a/content/renderer/media/android/webmediaplayer_android.cc
+++ b/content/renderer/media/android/webmediaplayer_android.cc
@@ -1280,6 +1280,11 @@ bool WebMediaPlayerAndroid::UpdateCurrentFrame(base::TimeTicks deadline_min,
   return false;
 }
 
+bool WebMediaPlayerAndroid::HasCurrentFrame() {
+  base::AutoLock auto_lock(current_frame_lock_);
+  return current_frame_;
+}
+
 scoped_refptr<media::VideoFrame> WebMediaPlayerAndroid::GetCurrentFrame() {
   scoped_refptr<VideoFrame> video_frame;
   {