Roll Skia from a58c14025a27 to fa8d6915cbbf (2 revisions)

https://skia.googlesource.com/skia.git/+log/a58c14025a27..fa8d6915cbbf

2020-12-04 jvanverth@google.com Remove Metal Perf bots running on MacOS 10.13.
2020-12-04 johnstiles@google.com Simplify various logic around multi-dimensional arrays.

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 westont@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: None
Tbr: westont@google.com
Change-Id: I36cdd6615adcfff3a3d89c47389579a69ba23ea7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2574426Reviewed-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@{#833762}

DEPS

@@ -204,7 +204,7 @@ 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': 'a58c14025a27e804c3471f5a4cef676d6f357f11',
+  'skia_revision': 'fa8d6915cbbf8cc7f6bc11c2c6bb7eaa36c2b5df',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.