Functions like CreateReadyRenderPipeline reserve an
ObjectId for the pipeline created but the Id can not be
used until the callback is called successfully.
Bug: chromium:1172774, chromium:1172775
Change-Id: I145c0f033a2bde7957d15da2da8b9b19c6520ceb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/39840
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>