Roll src/third_party/dawn 58dbfcae38f4..9b67273de9e5 (1 commits)

https://dawn.googlesource.com/dawn.git/+log/58dbfcae38f4..9b67273de9e5

git log 58dbfcae38f4..9b67273de9e5 --date=short --no-merges --format='%ad %ae %s'
2019-11-14 ellyjones@google.com build: assert use_dawn

Created with:
  gclient setdep -r src/third_party/dawn@9b67273de9e5

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/+/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
TBR=cwallez@google.com

Bug: chromium:None
Change-Id: I55404f6de3f1cbf5838ad7a02e68d9e6edecdbf2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1917990Reviewed-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@{#715497}

DEPS

@@ -307,7 +307,7 @@ 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': '58dbfcae38f465b5f7963517b9d914190d304d19',
+  'dawn_revision': '9b67273de9e57ac5aa2b3d37a60dd270ec09e973',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.