Reported to UMA and logged for at the end of the call. Bug: webrtc:8355 Change-Id: I4ef31bf9e55feaba9cf28be5cb4fcfae929c7179 Reviewed-on: https://webrtc-review.googlesource.com/53760 Reviewed-by: Philip Eliasson <philipel@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22132}