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

content/renderer/media/video_capture_impl.cc

Index: content/renderer/media/video_capture_impl.cc
diff --git a/content/renderer/media/video_capture_impl.cc b/content/renderer/media/video_capture_impl.cc
index f9e13b6c293569df036996cd69a084aaf49081dc..ed3e7f0a88ef0a8e8f8a86e25facb53ca8ad6324 100644
--- a/content/renderer/media/video_capture_impl.cc
+++ b/content/renderer/media/video_capture_impl.cc
@@ -374,7 +374,11 @@ void VideoCaptureImpl::OnBufferReceived(
       NOTREACHED();
       break;
   }
-  DCHECK(frame);
+  if (!frame) {
+    Send(new VideoCaptureHostMsg_BufferReady(device_id_, buffer_id,
+                                             gpu::SyncToken(), -1.0));
+    return;
+  }
 
   frame->metadata()->SetTimeTicks(media::VideoFrameMetadata::REFERENCE_TIME,
                                   timestamp);