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

talk/media/base/rtpdataengine.h

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 96 matching lines @@
     return true;
   }
   virtual bool SetReceive(bool receive) {
     receiving_ = receive;
     return true;
   }
   virtual void OnPacketReceived(rtc::Buffer* packet,
                                 const rtc::PacketTime& packet_time);
   virtual void OnRtcpReceived(rtc::Buffer* packet,
                               const rtc::PacketTime& packet_time) {}
+  virtual void OnPacketSent(const rtc::SentPacket& packet_sent) {}
   virtual void OnReadyToSend(bool ready) {}
   virtual bool SendData(
     const SendDataParams& params,
     const rtc::Buffer& payload,
     SendDataResult* result);
 
  private:
   void Construct(rtc::Timing* timing);
   bool SetMaxSendBandwidth(int bps);
   bool SetSendCodecs(const std::vector<DataCodec>& codecs);
   bool SetRecvCodecs(const std::vector<DataCodec>& codecs);
 
   bool sending_;
   bool receiving_;
   rtc::Timing* timing_;
   std::vector<DataCodec> send_codecs_;
   std::vector<DataCodec> recv_codecs_;
   std::vector<StreamParams> send_streams_;
   std::vector<StreamParams> recv_streams_;
   std::map<uint32, RtpClock*> rtp_clock_by_send_ssrc_;
   rtc::scoped_ptr<rtc::RateLimiter> send_limiter_;
 };
 
 }  // namespace cricket
 
 #endif  // TALK_MEDIA_BASE_RTPDATAENGINE_H_