RTCIceCandidateStats.transportId added and collected.

webrtc/api/stats/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.
  */
 
@@ skipping 152 matching lines @@
 // TODO(hbos): |RTCStatsCollector| only collects candidates that are part of
 // ice candidate pairs, but there could be candidates not paired with anything.
 // crbug.com/632723
 class RTCIceCandidateStats : public RTCStats {
  public:
   WEBRTC_RTCSTATS_DECL();
 
   RTCIceCandidateStats(const RTCIceCandidateStats& other);
   ~RTCIceCandidateStats() override;
 
+  RTCStatsMember<std::string> transport_id;
   RTCStatsMember<std::string> ip;
   RTCStatsMember<int32_t> port;
   RTCStatsMember<std::string> protocol;
   // TODO(hbos): Support enum types? "RTCStatsMember<RTCIceCandidateType>"?
   RTCStatsMember<std::string> candidate_type;
   RTCStatsMember<int32_t> priority;
   // TODO(hbos): Not collected by |RTCStatsCollector|. crbug.com/632723
   RTCStatsMember<std::string> url;
 
  protected:
@@ skipping 205 matching lines @@
   RTCStatsMember<std::string> rtcp_transport_stats_id;
   RTCStatsMember<bool> active_connection;
   RTCStatsMember<std::string> selected_candidate_pair_id;
   RTCStatsMember<std::string> local_certificate_id;
   RTCStatsMember<std::string> remote_certificate_id;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_STATS_RTCSTATS_OBJECTS_H_