RTCMediaStreamTrackStats.framesSent collected by RTCStatsCollector.

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 5ded4470ea5fb13d019e4f7a91e869f435bc08a8..f4a48555b2fbd715ca4906198c91d99315d0ddc5 100644
--- a/webrtc/api/rtcstats_integrationtest.cc
+++ b/webrtc/api/rtcstats_integrationtest.cc
@@ -438,11 +438,13 @@ class RTCStatsReportVerifier {
       verifier.TestMemberIsNonNegative<uint32_t>(
           media_stream_track.frame_height);
       verifier.TestMemberIsUndefined(media_stream_track.frames_per_second);
-      verifier.TestMemberIsUndefined(media_stream_track.frames_sent);
       if (*media_stream_track.remote_source) {
+        verifier.TestMemberIsUndefined(media_stream_track.frames_sent);
         verifier.TestMemberIsNonNegative<uint32_t>(
             media_stream_track.frames_received);
       } else {
+        verifier.TestMemberIsNonNegative<uint32_t>(
+            media_stream_track.frames_sent);
         verifier.TestMemberIsUndefined(media_stream_track.frames_received);
       }
       verifier.TestMemberIsUndefined(media_stream_track.frames_decoded);