Also shutdown performance, since it's not easy to only test one.

BUG=angleproject:1014

Change-Id: I9d06426788ed336031271f8876589b111f1294b7
Reviewed-on: https://chromium-review.googlesource.com/273974Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Brandon Jones <bajones@chromium.org>