BUG=angleproject:884

Change-Id: I9e248e623f3b342f878bf65c9686768b90cf5ed8
Reviewed-on: https://chromium-review.googlesource.com/275692Tested-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>