This utility will be used to run tests on the wire in both the
end2end tests and the unit tests.
Bug: dawn:654
Change-Id: I5ac0b2385efe32ee1c4af033b01198f890c0f7dd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/38500
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>