Define RtpTransportControllerSendInterface.

webrtc/voice_engine/channel_proxy.h

Index: webrtc/voice_engine/channel_proxy.h
diff --git a/webrtc/voice_engine/channel_proxy.h b/webrtc/voice_engine/channel_proxy.h
index 28d036446a295a87c8f1ccd62c713a0f201d1f66..91bc1766e9f9c8a7c9b7c544493a9c7a8dd5a225 100644
--- a/webrtc/voice_engine/channel_proxy.h
+++ b/webrtc/voice_engine/channel_proxy.h
@@ -33,6 +33,7 @@ class RtpPacketSender;
 class RtpPacketReceived;
 class RtpReceiver;
 class RtpRtcp;
+class RtpTransportControllerSendInterface;
 class Transport;
 class TransportFeedbackObserver;
 
@@ -62,9 +63,7 @@ class ChannelProxy {
   virtual void EnableSendTransportSequenceNumber(int id);
   virtual void EnableReceiveTransportSequenceNumber(int id);
   virtual void RegisterSenderCongestionControlObjects(
-      RtpPacketSender* rtp_packet_sender,
-      TransportFeedbackObserver* transport_feedback_observer,
-      PacketRouter* packet_router,
+      RtpTransportControllerSendInterface* transport,
       RtcpBandwidthObserver* bandwidth_observer);
   virtual void RegisterReceiverCongestionControlObjects(
       PacketRouter* packet_router);