We were missing this in a few places, and this was giving runtime
errors in dEQP negative tests.

BUG=angleproject:901

Change-Id: I9de5b055dcfe4ad5c13c800a31b4a0b424863bee
Reviewed-on: https://chromium-review.googlesource.com/266888Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>