This is necessary for Chromium CL: https://chromium-review.googlesource.com/c/chromium/src/+/2327373 BUG=chromium:1066670 Change-Id: I8c5e5976d6c4737135254b9715b3aa5c885bfc8c Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/180773 Reviewed-by: Jamie Walch <jamiewalch@chromium.org> Commit-Queue: Thomas Anderson <thomasanderson@chromium.org> Cr-Commit-Position: refs/heads/master@{#31901}