This move the "use wire" option as well as instance and window creation
to the test environment. The environment will later be used to print
system information before running the tests for debugging.
BUG=dawn:109
Change-Id: Ice2f40bd5506cc69927287f9f8d51dac85f4472b
Reviewed-on: https://dawn-review.googlesource.com/c/4823
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This will be useful to provide additional coverage of the wire in
addition to the very focused WireTests unittests. All tests pass except
the MapWriteAsync ones that aren't implemented in the wire yet. They can
be skipped with --gtest_filter=-*MapWrite*