Roll Dawn from 2ee68783068c to 4171134daf9d (7 revisions)

https://dawn.googlesource.com/dawn.git/+log/2ee68783068c..4171134daf9d

2020-10-07 cwallez@chromium.org Buffer: Validate the offset is aligned to 8
2020-10-07 cwallez@chromium.org Roll our copy of the Vulkan headers.
2020-10-07 dawn-autoroll@skia-public.iam.gserviceaccount.com Roll Tint from a388d56d9968 to 28ae1471bf2c (1 revision)
2020-10-07 dsinclair@chromium.org Re-enable disabled test.
2020-10-07 cwallez@chromium.org Buffer: Disallow unmapping when unmapped.
2020-10-07 cwallez@chromium.org dawn_wire: Guarantee OOM on MAX_SIZE_T sized buffers.
2020-10-07 dawn-autoroll@skia-public.iam.gserviceaccount.com Roll Tint from c9110b93cb8a to a388d56d9968 (1 revision)

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 kainino@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: kainino@google.com
Change-Id: I771883e0e8ba87a5025016182d978e8b133140ef
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2459247Reviewed-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@{#814917}

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': '2ee68783068c8fd515a786fe5e1814ac2b3c0817',
+  'dawn_revision': '4171134daf9dbcef5652582fcd637312f8e5ac4a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.