BUG=angleproject:892

Change-Id: Ifebcadab4fc4ad9fd93b9cf21b3ebdd2f4d6cfc1
Reviewed-on: https://chromium-review.googlesource.com/271164Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>