BUG=angleproject:1190

Change-Id: I38604de469c5f7efaf37bcebf20bc6425df35e62
Reviewed-on: https://chromium-review.googlesource.com/309512Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tryjob-Request: Jamie Madill <jmadill@chromium.org>
Tested-by: Austin Kinross <aukinros@microsoft.com>