Remove requirement of compositing a video frame for dropped frame count.

content/renderer/media/webmediaplayer_impl.cc

Index: content/renderer/media/webmediaplayer_impl.cc
diff --git a/content/renderer/media/webmediaplayer_impl.cc b/content/renderer/media/webmediaplayer_impl.cc
index 7af0999d2bea9a349f0c16ea1732ca8b25e71f42..dbe3924d3445509e0bbde6fda6eaee9f7f145634 100644
--- a/content/renderer/media/webmediaplayer_impl.cc
+++ b/content/renderer/media/webmediaplayer_impl.cc
@@ -577,7 +577,7 @@ unsigned WebMediaPlayerImpl::droppedFrameCount() const {
   unsigned frames_dropped = stats.video_frames_dropped;
 
   frames_dropped += const_cast<VideoFrameCompositor&>(compositor_)
-                        .GetFramesDroppedBeforeComposite();
+                        .GetFramesDroppedBeforeCompositorWasNotified();
 
   DCHECK_LE(frames_dropped, stats.video_frames_decoded);
   return frames_dropped;