BUG=angleproject:1354

Change-Id: I073b75d416bd5184402b580bcebfca34f7cd28a8
Reviewed-on: https://chromium-review.googlesource.com/395110
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>