BUG=angleproject:2254

Change-Id: I4e837a831e0950330b243bd8aa01831af0a70cc4
Reviewed-on: https://chromium-review.googlesource.com/775604
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>