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

webrtc/api/peerconnection.h

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_API_PEERCONNECTION_H_
 #define WEBRTC_API_PEERCONNECTION_H_
 
 #include <string>
 #include <map>
 #include <memory>
 #include <vector>
 
 #include "webrtc/api/peerconnectionfactory.h"
 #include "webrtc/api/peerconnectioninterface.h"
+#include "webrtc/api/rtcstatscollector.h"
 #include "webrtc/api/rtpreceiver.h"
 #include "webrtc/api/rtpsender.h"
 #include "webrtc/api/statscollector.h"
 #include "webrtc/api/streamcollection.h"
 #include "webrtc/api/webrtcsession.h"
 
 namespace webrtc {
 
 class MediaStreamObserver;
 class VideoRtpReceiver;
@@ skipping 64 matching lines @@
       const override;
   std::vector<rtc::scoped_refptr<RtpReceiverInterface>> GetReceivers()
       const override;
 
   rtc::scoped_refptr<DataChannelInterface> CreateDataChannel(
       const std::string& label,
       const DataChannelInit* config) override;
   bool GetStats(StatsObserver* observer,
                 webrtc::MediaStreamTrackInterface* track,
                 StatsOutputLevel level) override;
+  void GetRTCStats(
+      const rtc::scoped_refptr<RTCStatsCollectorCallback>& callback) override;

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

Passing references to "smart pointers" is no longer in accordance with the
coding standard. https://www.chromium.org/developers/smart-pointer-guidelines.

 
   SignalingState signaling_state() override;
 
   // TODO(bemasc): Remove ice_state() when callers are removed.
   IceState ice_state() override;
   IceConnectionState ice_connection_state() override;
   IceGatheringState ice_gathering_state() override;
 
   const SessionDescriptionInterface* local_description() const override;
   const SessionDescriptionInterface* remote_description() const override;
@@ skipping 305 matching lines @@
   bool enable_ice_renomination_ = false;
 
   std::vector<rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>>>
       senders_;
   std::vector<
       rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>>>
       receivers_;
 
   std::unique_ptr<WebRtcSession> session_;
   std::unique_ptr<StatsCollector> stats_;
+  rtc::scoped_refptr<RTCStatsCollector> stats_collector_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_PEERCONNECTION_H_