Set actual transport overhead in rtp_rtcp

webrtc/media/engine/webrtcvoiceengine.cc

Index: webrtc/media/engine/webrtcvoiceengine.cc
diff --git a/webrtc/media/engine/webrtcvoiceengine.cc b/webrtc/media/engine/webrtcvoiceengine.cc
index fc901ae1e6074b54478ca1c77b0d08877d62c844..29d7dc12e4b2c21a0692402bc3140c5954adff46 100644
--- a/webrtc/media/engine/webrtcvoiceengine.cc
+++ b/webrtc/media/engine/webrtcvoiceengine.cc
@@ -2449,6 +2449,13 @@ void WebRtcVoiceMediaChannel::OnReadyToSend(bool ready) {
       ready ? webrtc::kNetworkUp : webrtc::kNetworkDown);
 }
 
+void WebRtcVoiceMediaChannel::OnTransportOverheadChange(
+    int transport_overhead_per_packet) {
+  RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
+  call_->OnTransportOverheadChange(webrtc::MediaType::AUDIO,
+                                   transport_overhead_per_packet);
+}
+
 bool WebRtcVoiceMediaChannel::GetStats(VoiceMediaInfo* info) {
   TRACE_EVENT0("webrtc", "WebRtcVoiceMediaChannel::GetStats");
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());