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

talk/media/webrtc/fakewebrtccall.h

Index: talk/media/webrtc/fakewebrtccall.h
diff --git a/talk/media/webrtc/fakewebrtccall.h b/talk/media/webrtc/fakewebrtccall.h
index 422848dda19264370771299678509f6e9ddfe4fd..484b0cb7567a7e82c007507305d5aa278300c776 100644
--- a/talk/media/webrtc/fakewebrtccall.h
+++ b/talk/media/webrtc/fakewebrtccall.h
@@ -164,6 +164,7 @@ class FakeCall : public webrtc::Call, public webrtc::PacketReceiver {
   const std::vector<FakeAudioReceiveStream*>& GetAudioReceiveStreams();
   const FakeAudioReceiveStream* GetAudioReceiveStream(uint32_t ssrc);
 
+  webrtc::SentPacket last_packet_sent() const;
   webrtc::NetworkState GetNetworkState() const;
   int GetNumCreatedSendStreams() const;
   int GetNumCreatedReceiveStreams() const;
@@ -200,9 +201,11 @@ class FakeCall : public webrtc::Call, public webrtc::PacketReceiver {
   void SetBitrateConfig(
       const webrtc::Call::Config::BitrateConfig& bitrate_config) override;
   void SignalNetworkState(webrtc::NetworkState state) override;
+  void OnSentPacket(const webrtc::SentPacket& packet_sent) override;
 
   webrtc::Call::Config config_;
   webrtc::NetworkState network_state_;
+  webrtc::SentPacket last_packet_sent_;
   webrtc::Call::Stats stats_;
   std::vector<FakeVideoSendStream*> video_send_streams_;
   std::vector<FakeVideoReceiveStream*> video_receive_streams_;