Roll Skia from 76c1ff1566c4 to a583a0fdcc15 (4 revisions)

https://skia.googlesource.com/skia.git/+log/76c1ff1566c4..a583a0fdcc15

2021-11-10 [email protected] In SkRuntimeEffect, replace ConstIterable with SkSpan
2021-11-10 [email protected] Add tests for matrix constant-expressions.
2021-11-10 [email protected] Fix test when optimizations are off.
2021-11-10 [email protected] [recipes] Port to Python 3

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC [email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry
To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

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/main/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -27,7 +27,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '76c1ff1566c45222d77bf687bf40c878801e6376',
+  'skia_revision': 'a583a0fdcc158c2fca1d974f0894a2a3bcb7e524',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 23f18c193605d92591f3213013a62b97
+Signature: a8be60403bff220ecf89899404a81d23
 
 UNUSED LICENSES: