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 d3e71a381f795ec286202c0bd6c034a9d3a72155..7d15b868d7994744f2770be63c88fa12dd77edd8 100644
--- a/webrtc/media/engine/webrtcvideoengine2.cc
+++ b/webrtc/media/engine/webrtcvideoengine2.cc
@@ -1478,6 +1478,12 @@ void WebRtcVideoChannel2::OnNetworkRouteChanged(
   call_->OnNetworkRouteChanged(transport_name, network_route);
 }
 
+void WebRtcVideoChannel2::OnTransportOverheadChange(
+    int transport_overhead_per_packet) {
+  call_->OnTransportOverheadChange(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