Exposing RtpSenders and RtpReceivers from PeerConnection.

talk/app/webrtc/rtpreceiverinterface.h

 /*
  * libjingle
  * Copyright 2015 Google Inc.
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-#ifndef TALK_APP_WEBRTC_MEDIACONTROLLER_H_
-#define TALK_APP_WEBRTC_MEDIACONTROLLER_H_
+// This file contains interfaces for RtpReceivers
+// http://w3c.github.io/webrtc-pc/#rtcrtpreceiver-interface
 
-#include "webrtc/base/thread.h"
+#ifndef TALK_APP_WEBRTC_RTPRECEIVERINTERFACE_H_
+#define TALK_APP_WEBRTC_RTPRECEIVERINTERFACE_H_
+
+#include <string>
+
+#include "talk/app/webrtc/proxy.h"
+#include "talk/app/webrtc/mediastreaminterface.h"
+#include "webrtc/base/refcount.h"
+#include "webrtc/base/scoped_ref_ptr.h"
 
 namespace webrtc {
-class Call;
-class VoiceEngine;
 
-// The MediaController currently owns shared state between media channels, but
-// in the future will create and own RtpSenders and RtpReceivers.
-class MediaControllerInterface {
+class RtpReceiverInterface : public rtc::RefCountInterface {
  public:
-  static MediaControllerInterface* Create(rtc::Thread* worker_thread,
-                                          webrtc::VoiceEngine* voice_engine);
+  virtual rtc::scoped_refptr<MediaStreamTrackInterface> track() const = 0;
 
-  virtual ~MediaControllerInterface() {}
-  virtual webrtc::Call* call_w() = 0;
+ protected:
+  virtual ~RtpReceiverInterface() {}
 };
+
+// Define proxy for RtpReceiverInterface.
+BEGIN_PROXY_MAP(RtpReceiver)
+PROXY_CONSTMETHOD0(rtc::scoped_refptr<MediaStreamTrackInterface>, track)
+END_PROXY()
+
 }  // namespace webrtc
 
-#endif  // TALK_APP_WEBRTC_MEDIACONTROLLER_H_
+#endif  // TALK_APP_WEBRTC_RTPRECEIVERINTERFACE_H_