Roll Skia from 55abaf5893ae to ff44584b475b (13 revisions)

https://skia.googlesource.com/skia.git/+log/55abaf5893ae..ff44584b475b

2020-12-10 brianosman@google.com SkSL: Disallow '%' and '%=' on non-integral types
2020-12-10 reed@google.com Use samplingoptions in imageshader
2020-12-10 ethannicholas@google.com Reland "Reland "Revert "Initial land of SkSL DSL."""
2020-12-10 johnstiles@google.com Fix matrixCompMult halfNxM implementation and add unit tests.
2020-12-10 bsalomon@google.com Add SurfaceContextReadPixels to excluded wasm tests
2020-12-10 jsimmons@google.com Reland "Cache text blobs computed by TextLine::paintText"
2020-12-10 csmartdalton@google.com Implement indirect stroking for conics
2020-12-10 bsalomon@google.com GrRenderTargetContext->GrSurfaceDrawContext
2020-12-10 rmistry@google.com Spelling and capitalization fixes from GitHub PRs
2020-12-10 michaelludwig@google.com Remove SkDrawIter entirely
2020-12-10 ethannicholas@google.com Revert "Reland "Revert "Initial land of SkSL DSL."""
2020-12-10 tdenniston@google.com Add specialized impl of Wang's formula for cubic rationals
2020-12-10 johnstiles@google.com Remove ftransform intrinsic from SkSL.

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 jmbetancourt@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: jmbetancourt@google.com
Change-Id: I1061ddb981399ffd36e7a8e216a66ee6b79efba8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2585670Reviewed-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@{#835921}

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': '55abaf5893ae015eab7b6013c133578883de7886',
+  'skia_revision': 'ff44584b475b99e75bce4948c840abc67ebfb4f6',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.