Roll Skia from 70bb18d7c99d to c2bfcff07225 (8 revisions)

https://skia.googlesource.com/skia.git/+log/70bb18d7c99d..c2bfcff07225

2020-11-06 adlai@google.com Use SkSpan to cut out some noise when flushing surfaces
2020-11-06 csmartdalton@google.com Revert "Update GrTriangulator to count curves"
2020-11-06 adlai@google.com Have DDLs honor the reduceOpsTaskSplittingFlag
2020-11-06 herb@google.com move concrete subruns to .cpp
2020-11-06 jlavrova@google.com Yet another workaround Thai \n problem (same as txtlib)
2020-11-06 fmalita@chromium.org [svg] Convert most presentation attributes to new style parsing
2020-11-06 brianosman@google.com Reland "Rearrange SkSL pre-include modules to hide things"
2020-11-06 brianosman@google.com Allow public SkSL to return vec4 (aka float4)

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 bsalomon@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:1075428
Tbr: bsalomon@google.com
Change-Id: I36363947eb0cec2ab86dbaa6f0940ce318115800
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2523827Reviewed-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@{#825136}

DEPS

@@ -206,7 +206,7 @@ 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': '70bb18d7c99de6c649379b7eef134b10ced29b34',
+  'skia_revision': 'c2bfcff07225a1f9f0bbbaa986e070ee3797f322',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.