Refactor certificate stats collection, added SSLCertificateStats.

webrtc/api/statscollector.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.
  */
 
@@ skipping 73 matching lines @@
   void ClearUpdateStatsCacheForTest();
 
  private:
   friend class StatsCollectorTest;
 
   // Overridden in unit tests to fake timing.
   virtual double GetTimeNow();
 
   bool CopySelectedReports(const std::string& selector, StatsReports* reports);
 
-  // Helper method for AddCertificateReports.
-  StatsReport* AddOneCertificateReport(
-      const rtc::SSLCertificate* cert, const StatsReport* issuer);
-
   // Helper method for creating IceCandidate report. |is_local| indicates
   // whether this candidate is local or remote.
   StatsReport* AddCandidateReport(const cricket::Candidate& candidate,
                                   bool local);
 
   // Adds a report for this certificate and every certificate in its chain, and
-  // returns the leaf certificate's report.
+  // returns the leaf certificate's report (|cert|'s report).
   StatsReport* AddCertificateReports(const rtc::SSLCertificate* cert);
 
   StatsReport* AddConnectionInfoReport(const std::string& content_name,
       int component, int connection_id,
       const StatsReport::Id& channel_report_id,
       const cricket::ConnectionInfo& info);
 
   void ExtractDataInfo();
   void ExtractSessionInfo();
   void ExtractVoiceInfo();
@@ skipping 29 matching lines @@
   // 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_t> >
       LocalAudioTrackVector;
   LocalAudioTrackVector local_audio_tracks_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_STATSCOLLECTOR_H_