BUG=angleproject:1570

Change-Id: Ic39f5f1ff8f565b2876fdfc8d738a50f24b911b6
Reviewed-on: https://chromium-review.googlesource.com/402930Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>