Add Stats to Stun ping.

webrtc/api/statstypes.cc

Index: webrtc/api/statstypes.cc
diff --git a/webrtc/api/statstypes.cc b/webrtc/api/statstypes.cc
index 61af82467a7595b2ff255726bd2d53a334839fa5..bde7dcb24ebb739073dd3262862483f12f96ff59 100644
--- a/webrtc/api/statstypes.cc
+++ b/webrtc/api/statstypes.cc
@@ -414,6 +414,18 @@ const char* StatsReport::Value::display_name() const {
       return "googBucketDelay";
     case kStatsValueNameBandwidthLimitedResolution:
       return "googBandwidthLimitedResolution";
+    // STUN ping related attributes.
+    // TODO(zhihuang) Rename these stats to follow the standards.
+    case kStatsValueNameSentPingRequestsTotal:
+      return "consentRequestsSent";

[pthatcher1, 2016/05/27 21:27:15]

I think it's more likely this will end up "requestsSent" and similar for all of
these except for the next one.  So, just take of the "consent" part.

But who knows :).

[zhihuang1, 2016/06/01 21:30:05]

Then I will keep the TODO part.

+    case kStatsValueNameSentPingRequestsBeforeFirstResponse:
+      return "consentRequestsSentBeforeFirstResponse";

[pthatcher1, 2016/05/27 21:27:15]

And this might be "consentRequestsSent".

+    case kStatsValueNameSentPingResponses:
+      return "consentResponsesSent";
+    case kStatsValueNameRecvPingRequests:
+      return "consentRequestsReceived";
+    case kStatsValueNameRecvPingResponses:
+      return "consentResponsesReceived";
 
     // Candidate related attributes. Values are taken from
     // http://w3c.github.io/webrtc-stats/#rtcstatstype-enum*.