This is in preparation for a change that will change all the
CreateFooInternal to be CreateFoo so they can be called in a
reentrant manner without special refcounting.
This also standardizes all the backends (except OpenGL and Null)
to use Object::Create that returns a Ref<T> or ResultOrError<Ref<T>>,
something we wanted to do for a long time.
Bug: dawn:723
Change-Id: I9e0baced333ffeb0affbc6a276c9bd9de082263a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46440
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>