BUG=angleproject:886

Change-Id: Ibcfc2f06e8308e2e6eb1a6c38206b803f689d7af
Reviewed-on: https://chromium-review.googlesource.com/265470Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>