Fixing RTCIceCandidatePairStats.nominated for ICE controlling agent.

webrtc/pc/rtcstats_integrationtest.cc

Index: webrtc/pc/rtcstats_integrationtest.cc
diff --git a/webrtc/pc/rtcstats_integrationtest.cc b/webrtc/pc/rtcstats_integrationtest.cc
index 03fb96c0e33a3d5c9cc2b6c6b0d211c7dc4d16e7..3337c4ee8b4944e41646780acb0c427bd1a61544 100644
--- a/webrtc/pc/rtcstats_integrationtest.cc
+++ b/webrtc/pc/rtcstats_integrationtest.cc
@@ -379,6 +379,8 @@ class RTCStatsReportVerifier {
     if (is_selected_pair) {
       verifier.TestMemberIsNonNegative<double>(
           candidate_pair.available_outgoing_bitrate);
+      // A pair should be nominated in order to be selected.
+      EXPECT_TRUE(*candidate_pair.nominated);
     } else {
       verifier.TestMemberIsUndefined(candidate_pair.available_outgoing_bitrate);
     }