Set actual transport overhead in rtp_rtcp

webrtc/media/engine/webrtcvideoengine2.cc

Index: webrtc/media/engine/webrtcvideoengine2.cc
diff --git a/webrtc/media/engine/webrtcvideoengine2.cc b/webrtc/media/engine/webrtcvideoengine2.cc
index 4d2d4cba08766fa62d31cddc0a6257fbc847830b..f58df35034eac64f1ae657faefe4946e4f0973bf 100644
--- a/webrtc/media/engine/webrtcvideoengine2.cc
+++ b/webrtc/media/engine/webrtcvideoengine2.cc
@@ -1524,6 +1524,12 @@ void WebRtcVideoChannel2::OnNetworkRouteChanged(
   call_->OnNetworkRouteChanged(transport_name, network_route);
 }
 
+void WebRtcVideoChannel2::OnTransportOverheadChange(
+    int transport_overhead_per_packet) {
+  call_->SignalTransportOverheadChange(webrtc::MediaType::VIDEO,
+                                       transport_overhead_per_packet);
+}
+
 void WebRtcVideoChannel2::SetInterface(NetworkInterface* iface) {
   MediaChannel::SetInterface(iface);
   // Set the RTP recv/send buffer to a bigger size