Passing Texture backed VideoFrame through WebRTC wrappers

content/renderer/media/webrtc/webrtc_video_capturer_adapter.h

Index: content/renderer/media/webrtc/webrtc_video_capturer_adapter.h
diff --git a/content/renderer/media/webrtc/webrtc_video_capturer_adapter.h b/content/renderer/media/webrtc/webrtc_video_capturer_adapter.h
index 69f2202e326e54a26616422f4c63cd6c25614280..7293111a648becbd0d24ec7c52d9445dc9079865 100644
--- a/content/renderer/media/webrtc/webrtc_video_capturer_adapter.h
+++ b/content/renderer/media/webrtc/webrtc_video_capturer_adapter.h
@@ -57,7 +57,7 @@ class CONTENT_EXPORT WebRtcVideoCapturerAdapter
   // This is an alias to the frame_factory_ in the base class
   // cricket::VideoCapturer.
   class MediaVideoFrameFactory;
-  MediaVideoFrameFactory* frame_factory_;
+  MediaVideoFrameFactory* const frame_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcVideoCapturerAdapter);
 };