BUG=angleproject:884

Change-Id: If2b8fd94b0354449ba7e629606d7b1b2c2430fd1
Reviewed-on: https://chromium-review.googlesource.com/272421Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>