BUG=angleproject:1523

Change-Id: I55ef1233fb42e2dc3eda26c3aa4e14c700f98bf0
Reviewed-on: https://chromium-review.googlesource.com/756868Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>