Roll Dawn from 429a12542f16 to 3668d352bc5f (4 revisions)

https://dawn.googlesource.com/dawn.git/+log/429a12542f16..3668d352bc5f

2020-12-02 dawn-autoroll@skia-public.iam.gserviceaccount.com Roll Tint from 782f6a5e3e3c to 685cb02ea8d9 (15 revisions)
2020-12-02 rharrison@chromium.org Do not assert in work thread during tests
2020-12-02 enga@chromium.org OpenGL: Bind a dummy sampler for OpImageFetch if not present
2020-12-02 cwallez@chromium.org Reenable BufferMappedAtCreationOOM on Windows

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dawn-chromium-autoroll
Please CC dsinclair@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:dawn-linux-x64-deps-rel;luci.chromium.try:dawn-mac-x64-deps-rel;luci.chromium.try:dawn-win10-x64-deps-rel;luci.chromium.try:dawn-win10-x86-deps-rel
Bug: None
Tbr: dsinclair@google.com
Change-Id: I78473a8988a0f4e59ba424e5ed4afc20fa459a4a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2570041Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#833167}

DEPS

@@ -330,7 +330,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'dawn_revision': '429a12542f160a36d87c1daa6c3102bce072207e',
+  'dawn_revision': '3668d352bc5fe13af27dc178d203f67032537a7f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.