Change-Id: I5adf1e675be2114b648878078a8f2e6808c390c7 Bug: webrtc:10915 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/150331 Commit-Queue: Ying Wang <yinwa@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28959}