PeerConnection[Interface]::GetStats(RTCStatsCollectorCallback*) added.

webrtc/api/rtcstats_objects.h

-/*
- *  Copyright 2016 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_RTCSTATS_OBJECTS_H_
-#define WEBRTC_API_RTCSTATS_OBJECTS_H_
-
-#include <string>
-
-#include "webrtc/api/rtcstats.h"
-
-namespace webrtc {
-
-class RTCPeerConnectionStats : public RTCStats {
- public:
-  RTCPeerConnectionStats(const std::string& id, int64_t timestamp_us);
-  RTCPeerConnectionStats(std::string&& id, int64_t timestamp_us);
-
-  WEBRTC_RTCSTATS_IMPL(RTCStats, RTCPeerConnectionStats,
-      &data_channels_opened,
-      &data_channels_closed);
-
-  RTCStatsMember<uint32_t> data_channels_opened;
-  RTCStatsMember<uint32_t> data_channels_closed;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_API_RTCSTATS_OBJECTS_H_