Update the call when the network route changes

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 4914d9f51d8c07c31c9b3eaa408b88374b7b12dd..799596afb850ff3e69cd688af55f9250932f1b87 100644
--- a/webrtc/media/engine/webrtcvideoengine2.cc
+++ b/webrtc/media/engine/webrtcvideoengine2.cc
@@ -1410,9 +1410,8 @@ void WebRtcVideoChannel2::OnReadyToSend(bool ready) {
 
 void WebRtcVideoChannel2::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);
+    const rtc::NetworkRoute& network_route) {
+  call_->OnNetworkRouteChanged(transport_name, network_route);
 }
 
 // TODO(pbos): Remove SetOptions in favor of SetSendParameters.