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

content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc

Index: content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc
diff --git a/content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc b/content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc
index 4e5dd05fc674c825c3a40f02602c40f9ca3f2505..2fcd03f6cf501eabde55f5581baa23bc5129b3f6 100644
--- a/content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc
+++ b/content/renderer/media/webrtc/webrtc_video_capturer_adapter.cc
@@ -95,6 +95,8 @@ class WebRtcVideoCapturerAdapter::MediaVideoFrameFactory
     const gfx::Size output_size(output_width, output_height);
     scoped_refptr<media::VideoFrame> video_frame =
         media::VideoFrame::WrapVideoFrame(frame_, visible_rect, output_size);
+    if (!video_frame)
+      return nullptr;
     video_frame->AddDestructionObserver(
         base::Bind(&ReleaseOriginalFrame, frame_));