RTCIceCandidatePairStats.[state/priority] added, ConnectionInfo updated.

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 577cc064f02af93aec5c759c753ba9136ad69d1b..556907ce510f216a251d85e30f3d629e26b632ff 100644
--- a/webrtc/api/rtcstats_integrationtest.cc
+++ b/webrtc/api/rtcstats_integrationtest.cc
@@ -359,8 +359,8 @@ class RTCStatsReportVerifier {
         candidate_pair.local_candidate_id, RTCLocalIceCandidateStats::kType);
     verifier.TestMemberIsIDReference(
         candidate_pair.remote_candidate_id, RTCRemoteIceCandidateStats::kType);
-    verifier.TestMemberIsUndefined(candidate_pair.state);
-    verifier.TestMemberIsUndefined(candidate_pair.priority);
+    verifier.TestMemberIsDefined(candidate_pair.state);
+    verifier.TestMemberIsNonNegative<uint64_t>(candidate_pair.priority);
     verifier.TestMemberIsUndefined(candidate_pair.nominated);
     verifier.TestMemberIsDefined(candidate_pair.writable);
     verifier.TestMemberIsUndefined(candidate_pair.readable);