BUG=angleproject:1309

Change-Id: I40e3580c99df44338dfd1d06677e80fd0c57853e
Reviewed-on: https://chromium-review.googlesource.com/636520Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>