Roll Skia from 7571f9e49024 to a66a9c31a318 (3 revisions)

https://skia.googlesource.com/skia.git/+log/7571f9e49024..a66a9c31a318

2020-09-03 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from e1051cbaad46 to 75690ce7ef4a (4 revisions)
2020-09-03 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from 33b01ad5 to 210fb6b5 (274 revisions)
2020-09-03 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from 6eeb3d8bf667 to 0c25fbe3e3ed (14 revisions)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-autoroll
Please CC michaelludwig@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:android_optional_gpu_tests_rel;luci.chromium.try:linux-blink-rel;luci.chromium.try:linux-chromeos-compile-dbg;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Cq-Do-Not-Cancel-Tryjobs: true
Bug: chromium:1034840,chromium:1123524,chromium:1124379
Tbr: michaelludwig@google.com
Change-Id: I0a395f20daaae9bab4aa28237b6215c3f527f6de
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2391867Reviewed-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@{#804158}

DEPS

@@ -195,7 +195,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '7571f9e4902490c7a316c715e838d5042e2689f1',
+  'skia_revision': 'a66a9c31a318eac556fd44a6858ff611fee95742',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.