BUG=angleproject:2303

Change-Id: If22dd174d2a7b50b1416fa760494e99bbc813985
Reviewed-on: https://chromium-review.googlesource.com/894839Reviewed-by: Lingfeng Yang <lfy@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>