Verify returned frames from media::VideoFrame::Wrap*() methods

content/renderer/media/media_stream_video_track.cc

Index: content/renderer/media/media_stream_video_track.cc
diff --git a/content/renderer/media/media_stream_video_track.cc b/content/renderer/media/media_stream_video_track.cc
index bbb88f3fe8690d4c83011a3db09ee3eb0d3ae19e..6ff4688ce3dac0dec9825c07574c7478d64d378f 100644
--- a/content/renderer/media/media_stream_video_track.cc
+++ b/content/renderer/media/media_stream_video_track.cc
@@ -178,6 +178,8 @@ MediaStreamVideoTrack::FrameDeliverer::GetBlackFrame(
       media::VideoFrame::WrapVideoFrame(
           black_frame_, black_frame_->visible_rect(),
           black_frame_->natural_size());
+  if (!wrapped_black_frame)
+    return nullptr;
   wrapped_black_frame->AddDestructionObserver(
       base::Bind(&ReleaseOriginalFrame, black_frame_));