RTCIceCandidateStats.transportId added and collected.

webrtc/api/rtcstats_integrationtest.cc

Index: webrtc/api/rtcstats_integrationtest.cc
diff --git a/webrtc/api/rtcstats_integrationtest.cc b/webrtc/api/rtcstats_integrationtest.cc
index c28130fe8a692558116b401eb2887ef3149454ae..199b66d7f474bfd617f43d8ac760521bc62c018f 100644
--- a/webrtc/api/rtcstats_integrationtest.cc
+++ b/webrtc/api/rtcstats_integrationtest.cc
@@ -354,6 +354,10 @@ class RTCStatsReportVerifier {
   bool VerifyRTCIceCandidateStats(
       const RTCIceCandidateStats& candidate) {
     RTCStatsVerifier verifier(report_, &candidate);
+    // TODO(hbos): Why is this not present, meaning
+    // |cricket::Candidate::transport_name| is an empty string? crbug.com/632723
+    verifier.TestMemberIsOptionalIDReference(

[Taylor Brandstetter, 2016/12/22 19:28:31]

Should get rid of "Optional"

[hbos, 2016/12/23 14:25:17]

Done.

+        candidate.transport_id, RTCTransportStats::kType);
     verifier.TestMemberIsDefined(candidate.ip);
     verifier.TestMemberIsDefined(candidate.port);
     verifier.TestMemberIsDefined(candidate.protocol);