Moving webrtc/stats/ into webrtc/api/ to resolve a circular dependency

webrtc/api/peerconnectioninterface.h

Index: webrtc/api/peerconnectioninterface.h
diff --git a/webrtc/api/peerconnectioninterface.h b/webrtc/api/peerconnectioninterface.h
index f5d8c63b671921146e69a170eb5a7916f2340fb6..264716066e75560f8f81ea580cc51e1520195bce 100644
--- a/webrtc/api/peerconnectioninterface.h
+++ b/webrtc/api/peerconnectioninterface.h
@@ -60,6 +60,7 @@
 #include "webrtc/api/dtmfsenderinterface.h"
 #include "webrtc/api/jsep.h"
 #include "webrtc/api/mediastreaminterface.h"
+#include "webrtc/api/rtcstatscollector.h"
 #include "webrtc/api/rtpreceiverinterface.h"
 #include "webrtc/api/rtpsenderinterface.h"
 #include "webrtc/api/statstypes.h"
@@ -440,6 +441,8 @@ class PeerConnectionInterface : public rtc::RefCountInterface {
   virtual bool GetStats(StatsObserver* observer,
                         MediaStreamTrackInterface* track,
                         StatsOutputLevel level) = 0;
+  virtual void GetRTCStats(
+      const rtc::scoped_refptr<RTCStatsCollectorCallback>& callback) = 0;

[nisse-webrtc, 2016/09/13 08:16:40]

Ditto, no references to smart pointers.

 
   virtual rtc::scoped_refptr<DataChannelInterface> CreateDataChannel(
       const std::string& label,