Update the call when the network route changes

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 6fe3d86fd98f086fe0622711c7769573d5276a1b..a9615b67b5ceb303a4c576be007b2683c384b652 100644
--- a/webrtc/media/engine/webrtcvoiceengine.cc
+++ b/webrtc/media/engine/webrtcvoiceengine.cc
@@ -2331,8 +2331,7 @@ void WebRtcVoiceMediaChannel::OnRtcpReceived(
 void WebRtcVoiceMediaChannel::OnNetworkRouteChanged(
     const std::string& transport_name,
     const NetworkRoute& network_route) {
-  // TODO(honghaiz): uncomment this once the function in call is implemented.
-  // call_->OnNetworkRouteChanged(transport_name, network_route);
+  call_->OnNetworkRouteChanged(transport_name, network_route);
 }
 
 bool WebRtcVoiceMediaChannel::MuteStream(uint32_t ssrc, bool muted) {