BUG=angleproject:1549

Change-Id: I8f003257b6f39282cb52ccdbacb73860ab37c919
Reviewed-on: https://chromium-review.googlesource.com/390271Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Shannon Woods <shannonwoods@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>