Roll src/third_party/dawn be6cd5188880..52d0627d5607 (2 commits)

https://dawn.googlesource.com/dawn.git/+log/be6cd5188880..52d0627d5607

git log be6cd5188880..52d0627d5607 --date=short --first-parent --format='%ad %ae %s'
2020-03-09 bryan.bernhart@intel.com D3D12: Pool-allocate shader-visible descriptor heaps.
2020-03-09 brandon1.jones@intel.com Residency 2: Create a d3d12::Heap During Direct Allocations

Created with:
  gclient setdep -r src/third_party/dawn@52d0627d5607

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
Bug: None
Tbr: cwallez@google.com
Change-Id: I8b3a86995d954fa859f11f58a1b0040ba67d3291
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2095936Reviewed-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@{#748504}

DEPS

@@ -302,7 +302,7 @@ 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': 'be6cd5188880a1f5a80e70eb240ec9bad7e05348',
+  'dawn_revision': '52d0627d5607cf191485165fe515062c2a61ce81',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.