BUG=angleproject:1063

Change-Id: Id0772b5c8479150a1e736aa7cd35ec6444753278
Reviewed-on: https://chromium-review.googlesource.com/285126Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>