Roll Dawn from 14f20b0ab38d to 527080ff03ce (1 revision)

https://dawn.googlesource.com/dawn.git/+log/14f20b0ab38d..527080ff03ce

2020-06-10 xinghua.cao@intel.com Check FP16 support on Metal backend

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: I9986ebcffab0690aff3824e8b2eaeaa27e8064ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2239347Reviewed-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@{#776834}

DEPS

@@ -305,7 +305,7 @@ 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': '14f20b0ab38d5996d2c2716156912491783d93fa',
+  'dawn_revision': '527080ff03ce4541a12c2648b6a44e53a1d6384e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.