Roll Dawn from 7f4980e7d265 to 1233b66c90d4 (6 revisions)

https://dawn.googlesource.com/dawn.git/+log/7f4980e7d265..1233b66c90d4

2020-07-18 enga@chromium.org Guard [MTLDevice recommendedMaxWorkingSetSize] only on MacOS
2020-07-18 enga@chromium.org Add offset argument in BufferZeroInit mapping test
2020-07-17 cwallez@chromium.org Add offset and size to Get[Const]MappedRange.
2020-07-17 enga@chromium.org Call vkFreeCommandBuffers before destroying the vkCommandPool
2020-07-17 enga@chromium.org Remove depth sampling tests of non-normalized depth values
2020-07-17 enga@chromium.org Make common/ compile with Emscripten

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: chromium:1082181
Tbr: cwallez@google.com
Change-Id: I2abf8058dafda7791e533eb857a810f3873cd5d0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2305244Reviewed-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@{#789730}

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': '7f4980e7d265d3f2e984dd316dccdb28a9dd86bf',
+  'dawn_revision': '1233b66c90d45c3c2b16a6d0635183201893dffc',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.