Flaky virtual/webrtc-wpt-plan-b/external/wpt/webrtc/RTCPeerConnection-iceConnectionState.https.html

TBR=hta@chromium.org

Bug: 997201
Change-Id: Iab008004a321cd54f8a4b3ff5cc6aabd7841a3d0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1768470Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690373}

third_party/blink/web_tests/TestExpectations

@@ -5871,6 +5871,7 @@ crbug.com/919587 [ Linux ] virtual/threaded/fast/idle-callback/idle_periods.html
 crbug.com/923244 external/wpt/webrtc/RTCDTMFSender-ontonechange.https.html [ Failure Pass ]
 # WebRTC Plan B
 crbug.com/920979 virtual/webrtc-wpt-plan-b/external/wpt/webrtc/RTCPeerConnection-remote-track-mute.https.html [ Timeout ]
+crbug.com/997201 virtual/webrtc-wpt-plan-b/external/wpt/webrtc/RTCPeerConnection-iceConnectionState.https.html [ Pass Failure ]
 crbug.com/920979 virtual/webrtc-wpt-plan-b/external/wpt/webrtc/RTCTrackEvent-fire.html [ Timeout ]
 # WebRTC codec tests - software H.264 not present on webkit bot family
 crbug.com/840659 external/wpt/webrtc/protocol/video-codecs.https.html [ Pass Failure ]