BUG=angleproject:892

Change-Id: I163e3b674cdb5357cfaf31305f4776dc4c895af1
Reviewed-on: https://chromium-review.googlesource.com/272228Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>