Roll Dawn from 042184128efe to 8a73e1876dbd (1 revision)

https://dawn.googlesource.com/dawn.git/+log/042184128efe..8a73e1876dbd

2020-12-07 enga@chromium.org Add MSL support for UseTintGenerator toggle

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 rharrison@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: rharrison@google.com
Change-Id: Id6d7321af3d00665c28d7e84ccd6664ad5674d5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2577552Reviewed-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@{#834539}

DEPS

@@ -326,7 +326,7 @@ 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': '042184128efea90552495d5054c3ae17b84cb3c3',
+  'dawn_revision': '8a73e1876dbd2d862701fde91bc21630c4bd0e5b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.