BUG=510822
BUG=angleproject:1071

Change-Id: Ia2e6d0ac71e61dbed75e55994d2bf874a75fabd6
Reviewed-on: https://chromium-review.googlesource.com/286831Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>