This enables running the validation uses using the wire with
the command line flag --use-wire
Bug: dawn:654
Change-Id: I17a642a132c8b6321195ec6869e5f86aebdd1c51
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/38620
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>