Make cricket::VideoFrame inherit webrtc::VideoFrame.

webrtc/media/base/videobroadcaster.cc

Index: webrtc/media/base/videobroadcaster.cc
diff --git a/webrtc/media/base/videobroadcaster.cc b/webrtc/media/base/videobroadcaster.cc
index ffe9069ea58c60eed5333b10d28fd91f3c5fd923..b38c2bd3629d138d3442e44dd43da52510257424 100644
--- a/webrtc/media/base/videobroadcaster.cc
+++ b/webrtc/media/base/videobroadcaster.cc
@@ -56,7 +56,7 @@ void VideoBroadcaster::OnFrame(const cricket::VideoFrame& frame) {
     if (sink_pair.wants.black_frames) {
       sink_pair.sink->OnFrame(cricket::WebRtcVideoFrame(
           GetBlackFrameBuffer(frame.width(), frame.height()), frame.rotation(),
-          frame.timestamp_us(), frame.transport_frame_id()));
+          frame.timestamp_us()));
     } else {
       sink_pair.sink->OnFrame(frame);
     }