Austin Eng 45238d775a Add empty implementations of Push/PopErrorScope
This adds Push/PopErrorScope to the API with empty implementations which
just call the error callback. Also adds unittests that the wire callbacks
return as expected.

Bug: dawn:153
Change-Id: I63826360e39fbac4c9855d3d55a05b5ca26db450
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/10543
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
2019-09-04 22:54:03 +00:00
..