Exposing RtpSenders and RtpReceivers from PeerConnection.

talk/app/webrtc/peerconnectioninterface.h

Index: talk/app/webrtc/peerconnectioninterface.h
diff --git a/talk/app/webrtc/peerconnectioninterface.h b/talk/app/webrtc/peerconnectioninterface.h
index ca853385e6327fdcad52014b32abc115685e80c1..b2bcbd12a55638eb87a5acede8560ed1ef0a527c 100644
--- a/talk/app/webrtc/peerconnectioninterface.h
+++ b/talk/app/webrtc/peerconnectioninterface.h
@@ -77,6 +77,8 @@
 #include "talk/app/webrtc/dtlsidentitystore.h"
 #include "talk/app/webrtc/jsep.h"
 #include "talk/app/webrtc/mediastreaminterface.h"
+#include "talk/app/webrtc/rtpreceiverinterface.h"
+#include "talk/app/webrtc/rtpsenderinterface.h"
 #include "talk/app/webrtc/statstypes.h"
 #include "talk/app/webrtc/umametrics.h"
 #include "webrtc/base/fileutils.h"
@@ -146,6 +148,9 @@ class MetricsObserverInterface : public rtc::RefCountInterface {
 };
 
 typedef MetricsObserverInterface UMAObserver;
+typedef std::vector<rtc::scoped_refptr<RtpSenderInterface>> RtpSenderRefptrs;
+typedef std::vector<rtc::scoped_refptr<RtpReceiverInterface>>
+    RtpReceiverRefptrs;
 
 class PeerConnectionInterface : public rtc::RefCountInterface {
  public:
@@ -322,6 +327,10 @@ class PeerConnectionInterface : public rtc::RefCountInterface {
   virtual rtc::scoped_refptr<DtmfSenderInterface> CreateDtmfSender(
       AudioTrackInterface* track) = 0;
 
+  virtual RtpSenderRefptrs GetSenders() const = 0;
+
+  virtual RtpReceiverRefptrs GetReceivers() const = 0;
+
   virtual bool GetStats(StatsObserver* observer,
                         MediaStreamTrackInterface* track,
                         StatsOutputLevel level) = 0;