Roll Dawn from c4593127cbdd to e557087870b0 (1 revision)

https://dawn.googlesource.com/dawn.git/+log/c4593127cbdd..e557087870b0

2020-10-20 cwallez@chromium.org CMakeLists: make DAWN_THIRD_PARTY_DIR an option.

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: If43a048eb320501bff73d60bde087f09bdb3bf0c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2487165Reviewed-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@{#818946}

DEPS

@@ -329,7 +329,7 @@ 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': 'c4593127cbdd382c18afea59b242b8040db5e4ce',
+  'dawn_revision': 'e557087870b0db11f232ce5825f88d8037e10e7c',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.