BUG=angleproject:1379

Change-Id: Ibda6e84c0a7f86e838247cd5c538ef956dd786fe
Reviewed-on: https://chromium-review.googlesource.com/346410Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Sami Väisänen <svaisanen@nvidia.com>