Set actual transport overhead in rtp_rtcp

webrtc/base/networkroute.h

Index: webrtc/base/networkroute.h
diff --git a/webrtc/base/networkroute.h b/webrtc/base/networkroute.h
index a34e6d304d4bd4538baf40b0a3df7abf6921fa6e..a4e3d805a9139da9895de5697bca896db0e8f610 100644
--- a/webrtc/base/networkroute.h
+++ b/webrtc/base/networkroute.h
@@ -22,22 +22,26 @@ struct NetworkRoute {
   uint16_t local_network_id;
   uint16_t remote_network_id;
   int last_sent_packet_id;  // Last packet id sent on the PREVIOUS route.
+  int transport_overhead_per_packet;
 
   NetworkRoute()
       : connected(false),
         local_network_id(0),
         remote_network_id(0),
-        last_sent_packet_id(-1) {}
+        last_sent_packet_id(-1),
+        transport_overhead_per_packet(0) {}
 
   // The route is connected if the local and remote network ids are provided.
   NetworkRoute(bool connected,
                uint16_t local_net_id,
                uint16_t remote_net_id,
-               int last_packet_id)
+               int last_packet_id,
+               int transport_overhead_per_packet)
       : connected(connected),
         local_network_id(local_net_id),
         remote_network_id(remote_net_id),
-        last_sent_packet_id(last_packet_id) {}
+        last_sent_packet_id(last_packet_id),
+        transport_overhead_per_packet(transport_overhead_per_packet) {}
 
   // |last_sent_packet_id| does not affect the NetworkRoute comparison.
   bool operator==(const NetworkRoute& nr) const {