BUG=angleproject:2148

Change-Id: If3fa4a42a7343ed133f85be1a4d9d0fa48b427cd
Reviewed-on: https://chromium-review.googlesource.com/665158Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>