BUG=angleproject:516

Change-Id: I7f969435a89c0063b504628d2ec3321cc02df7ce
Reviewed-on: https://chromium-review.googlesource.com/283243Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Corentin Wallez <cwallez@chromium.org>