BUG=angleproject:1510

Change-Id: I42355607235a05fe276342084acd1eb359c16de4
Reviewed-on: https://chromium-review.googlesource.com/390414Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>