BUG=angleproject:892

Change-Id: Ia718306226ce6cfcf91f74947a7775b1439e4fab
Reviewed-on: https://chromium-review.googlesource.com/268995Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>