Roll Dawn from ed0b3cf15389 to ddef7a04a2d3 (3 revisions)

https://dawn.googlesource.com/dawn.git/+log/ed0b3cf15389..ddef7a04a2d3

2020-09-25 hao.x.li@intel.com Query API: QuerySet on Metal
2020-09-24 cwallez@chromium.org Standardize the use of UNREACHABLE in switches.
2020-09-24 cwallez@chromium.org Add wgpu::BindingType::MultisampledTexture

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 cwallez@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: cwallez@google.com
Change-Id: I790b4340bb3e5c67647b20cb8c7ecf533f64084a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2431328Reviewed-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@{#810648}

DEPS

@@ -318,7 +318,7 @@ 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': 'ed0b3cf15389ff2f9fc84e0d218ae2555b53d8a1',
+  'dawn_revision': 'ddef7a04a2d3f66b3914576caf6057b43e135e3d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.