RTCTransportStats added.

webrtc/api/rtcstatscollector.h

Index: webrtc/api/rtcstatscollector.h
diff --git a/webrtc/api/rtcstatscollector.h b/webrtc/api/rtcstatscollector.h
index 712f9e29494a8e813242580b769de974f1b41cef..6e6405fdc1aaefdb0614e12ebdf1d81afb753f4f 100644
--- a/webrtc/api/rtcstatscollector.h
+++ b/webrtc/api/rtcstatscollector.h
@@ -11,6 +11,7 @@
 #ifndef WEBRTC_API_RTCSTATSCOLLECTOR_H_
 #define WEBRTC_API_RTCSTATSCOLLECTOR_H_
 
+#include <map>
 #include <memory>
 #include <vector>
 
@@ -19,6 +20,7 @@
 #include "webrtc/base/asyncinvoker.h"
 #include "webrtc/base/refcount.h"
 #include "webrtc/base/scoped_ref_ptr.h"
+#include "webrtc/base/sslidentity.h"
 #include "webrtc/base/timeutils.h"
 
 namespace cricket {
@@ -75,15 +77,21 @@ class RTCStatsCollector : public virtual rtc::RefCountInterface {
       const rtc::scoped_refptr<RTCStatsReport>& partial_report);
 
  private:
+  struct CertificateStatsPair {
+    std::unique_ptr<rtc::SSLCertificateStats> local;
+    std::unique_ptr<rtc::SSLCertificateStats> remote;
+  };
+
   void AddPartialResults_s(rtc::scoped_refptr<RTCStatsReport> partial_report);
   void DeliverCachedReport();
 
   // Produces |RTCCertificateStats|.
   void ProduceCertificateStats_s(
       int64_t timestamp_us, const SessionStats& session_stats,
+      const std::map<std::string, CertificateStatsPair>& certificate_stats_map,
       RTCStatsReport* report) const;
-  void ProduceCertificateStatsFromSSLCertificateAndChain_s(
-      int64_t timestamp_us, const rtc::SSLCertificate& certificate,
+  void ProduceCertificateStatsFromSSLCertificateStats_s(
+      int64_t timestamp_us, const rtc::SSLCertificateStats& certificate_stats,
       RTCStatsReport* report) const;
   // Produces |RTCIceCandidatePairStats| and |RTCIceCandidateStats|.
   void ProduceIceCandidateAndPairStats_s(
@@ -95,6 +103,15 @@ class RTCStatsCollector : public virtual rtc::RefCountInterface {
   // Produces |RTCPeerConnectionStats|.
   void ProducePeerConnectionStats_s(
       int64_t timestamp_us, RTCStatsReport* report) const;
+  // Produces |RTCTransportStats|.
+  void ProduceTransportStats_s(
+      int64_t timestamp_us, const SessionStats& session_stats,
+      const std::map<std::string, CertificateStatsPair>& certificate_stats_map,
+      RTCStatsReport* report) const;
+
+  // Helper functions to stats producing functions.
+  std::map<std::string, CertificateStatsPair> PrepareCertificateStatsMap_s(
+      const SessionStats& session_stats) const;
 
   PeerConnection* const pc_;
   rtc::Thread* const signaling_thread_;