BUG=angleproject:1512

Change-Id: Ifdb8d4c38e3c90e03eee42ba9fd6390dffd61363
Reviewed-on: https://chromium-review.googlesource.com/388611Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>