Bug: webrtc:8656 Change-Id: I3d42ffc92a7c95266e5d53bab03f388bd0de2592 Reviewed-on: https://webrtc-review.googlesource.com/39760 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Commit-Queue: Ying Wang <yinwa@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21710}