BUG=angleproject:2045

Change-Id: Ie1deac50a534ee748518d9ec5e6f749f3c78b53d
Reviewed-on: https://chromium-review.googlesource.com/531795Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>