Roll Skia from ace3f2939f89 to 0a69b4bb071c (4 revisions)

https://skia.googlesource.com/skia.git/+log/ace3f2939f89..0a69b4bb071c

2021-01-12 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from 2c65da28a2ee to 5b8dec52b68f (3 revisions)
2021-01-12 csmartdalton@google.com Move GrAATriangulator into its own file
2021-01-12 johnstiles@google.com Add flag to force skslc to compile one test file at a time.
2021-01-12 csmartdalton@google.com Move various static GrTriangulator functions into structs

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 ethannicholas@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: ethannicholas@google.com
Change-Id: Ia69d560efb6153b726c92a0ea0a78938af977685
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2625848Reviewed-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@{#842824}

DEPS

@@ -199,7 +199,7 @@ 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': 'ace3f2939f8970c7eb6693c5da0c2ab372c30b87',
+  'skia_revision': '0a69b4bb071c7868dda1cd734351146898a74aba',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.