Wire up transport sequence number / send time callbacks to webrtc via libjingle.

webrtc/p2p/base/stunport.h

Index: webrtc/p2p/base/stunport.h
diff --git a/webrtc/p2p/base/stunport.h b/webrtc/p2p/base/stunport.h
index 2967c15d959f33bb9ea01fdd759ebaa541c61a8a..68b6ae63dcf0651fafedbba8b9a41635be9374c0 100644
--- a/webrtc/p2p/base/stunport.h
+++ b/webrtc/p2p/base/stunport.h
@@ -140,6 +140,9 @@ class UDPPort : public Port {
                     const rtc::SocketAddress& remote_addr,
                     const rtc::PacketTime& packet_time);
 
+  void OnSentPacket(rtc::AsyncPacketSocket* socket,
+                    const rtc::SentPacket& sent_packet);
+
   void OnReadyToSend(rtc::AsyncPacketSocket* socket);
 
   // This method will send STUN binding request if STUN server address is set.