Set / verify stats report timestamps.

talk/app/webrtc/statscollector.h

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 34 matching lines @@
 
 // Conversion function to convert candidate type string to the corresponding one
 // from  enum RTCStatsIceCandidateType.
 const char* IceCandidateTypeToStatsType(const std::string& candidate_type);
 
 // Conversion function to convert adapter type to report string which are more
 // fitting to the general style of http://w3c.github.io/webrtc-stats. This is
 // only used by stats collector.
 const char* AdapterTypeToStatsType(rtc::AdapterType type);
 
+// A mapping between track ids and their StatsReport.
+typedef std::map<std::string, StatsReport*> TrackIdMap;
+
 class StatsCollector {
  public:
   // The caller is responsible for ensuring that the session outlives the
   // StatsCollector instance.
   explicit StatsCollector(WebRtcSession* session);
   virtual ~StatsCollector();
 
   // Adds a MediaStream with tracks that can be used as a |selector| in a call
   // to GetStats.
   void AddStream(MediaStreamInterface* stream);
@@ skipping 67 matching lines @@
   // Helper method to get stats from the local audio tracks.
   void UpdateStatsFromExistingLocalAudioTracks();
   void UpdateReportFromAudioTrack(AudioTrackInterface* track,
                                   StatsReport* report);
 
   // Helper method to get the id for the track identified by ssrc.
   // |direction| tells if the track is for sending or receiving.
   bool GetTrackIdBySsrc(uint32 ssrc, std::string* track_id,
                         StatsReport::Direction direction);
 
+  // Helper method to update the timestamp of track records.
+  void UpdateTrackReports();
+
   // A collection for all of our stats reports.
   StatsCollection reports_;
+  TrackIdMap track_ids_;
   // Raw pointer to the session the statistics are gathered from.
   WebRtcSession* const session_;
   double stats_gathering_started_;
   cricket::ProxyTransportMap proxy_to_transport_;
 
   // TODO(tommi): We appear to be holding on to raw pointers to reference
   // counted objects?  We should be using scoped_refptr here.
   typedef std::vector<std::pair<AudioTrackInterface*, uint32> >
       LocalAudioTrackVector;
   LocalAudioTrackVector local_audio_tracks_;
 };
 
 }  // namespace webrtc
 
 #endif  // TALK_APP_WEBRTC_STATSCOLLECTOR_H_