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

webrtc/p2p/base/port.h

Index: webrtc/p2p/base/port.h
diff --git a/webrtc/p2p/base/port.h b/webrtc/p2p/base/port.h
index c6b7f609aad7500e6ad7d0b68676e2a59c072d5a..0bc861f740ee270f8b94b591881277e381f7a740 100644
--- a/webrtc/p2p/base/port.h
+++ b/webrtc/p2p/base/port.h
@@ -275,6 +275,10 @@ class Port : public PortInterface, public rtc::MessageHandler,
                             IceMessage* stun_msg,
                             const std::string& remote_ufrag);
 
+  // Called when a packet has been sent to the socket.
+  void OnPacketSent(const rtc::SocketAddress& addr,
+                    const rtc::SentPacket& sent_packet);
+
   // Called when the socket is currently able to send.
   void OnReadyToSend();
 
@@ -475,12 +479,16 @@ class Connection : public rtc::MessageHandler,
   sigslot::signal4<Connection*, const char*, size_t, const rtc::PacketTime&>
       SignalReadPacket;
 
+  sigslot::signal2<Connection*, const rtc::SentPacket&> SignalSentPacket;
+
   sigslot::signal1<Connection*> SignalReadyToSend;
 
   // Called when a packet is received on this connection.
   void OnReadPacket(const char* data, size_t size,
                     const rtc::PacketTime& packet_time);
 
+  void OnPacketSent(const rtc::SentPacket& sent_packet);
+
   // Called when the socket is currently able to send.
   void OnReadyToSend();