Memory copy the VideoFrame to match the requirement for HW encoders.

media/cast/sender/video_sender.cc

Index: media/cast/sender/video_sender.cc
diff --git a/media/cast/sender/video_sender.cc b/media/cast/sender/video_sender.cc
index a229f2d6349082be762b8e4e9ea976bfe2d288e6..3bf616f71ab8fad221ae3f45a7eb331628405e39 100644
--- a/media/cast/sender/video_sender.cc
+++ b/media/cast/sender/video_sender.cc
@@ -324,6 +324,10 @@ void VideoSender::OnEncodedVideoFrame(
   frames_in_encoder_--;
   DCHECK_GE(frames_in_encoder_, 0);
 
+  // Encoding was exited with errors.
+  if (!encoded_frame)
+    return;
+
   duration_in_encoder_ =
       last_enqueued_frame_reference_time_ - encoded_frame->reference_time;