Roll Dawn from 155241b665f8 to ee977a0df8e3 (4 revisions)

https://dawn.googlesource.com/dawn.git/+log/155241b665f8..ee977a0df8e3

2020-12-17 enga@chromium.org Update MultisampledSamplingTests to use WGSL
2020-12-17 enga@chromium.org Update DepthStencilCopyTests to use WGSL - FragDepth
2020-12-17 enga@chromium.org Autogenerate all of the wire callback mocks
2020-12-17 cwallez@chromium.org Introduce SubresourceStorage (3/N): Inline data

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: Ie4775c298e9a1806b2b3c47d74c3060a80edcd13
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2597111Reviewed-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@{#838256}

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': '155241b665f8305d54145ca460e0b8cebe888336',
+  'dawn_revision': 'ee977a0df8e3f3a12a6f2983db98838bf65566da',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.