BUG=angleproject:635

Change-Id: If09014508d5f4dfeb17ac946672a76a98b8ad175
Reviewed-on: https://chromium-review.googlesource.com/316580Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tryjob-Request: Corentin Wallez <cwallez@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>