BUG=angleproject:1143

Change-Id: I5bd1a7de7b147062f2e093a30efe4ed06eb80ec2
Reviewed-on: https://chromium-review.googlesource.com/295247Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>