Roll Skia from ad5944cf8dbb to 23d8f9453581 (17 revisions)

https://skia.googlesource.com/skia.git/+log/ad5944cf8dbb..23d8f9453581

2021-08-10 johnstiles@google.com Fix array-of-matrix/struct comparisons in Metal.
2021-08-10 johnstiles@google.com Fix array-of-vector comparisons in Metal.
2021-08-10 johnstiles@google.com Fix copy-paste type confusion in BoolLiteral.
2021-08-10 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from b1b760e74e00 to 1d49cb6620a7 (1 revision)
2021-08-10 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from 167f67f3cb83 to f99d5aa7d407 (3 revisions)
2021-08-10 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from 4686da27b37b to b1b760e74e00 (3 revisions)
2021-08-09 johnstiles@google.com Simplify the boilerplate of cloning a fragment processor.
2021-08-09 bsalomon@google.com Reland "Use a table for dither effect rather than math."
2021-08-09 michaelludwig@google.com Delete GrClipStackClip and GrReducedClip
2021-08-09 fmalita@chromium.org Separate SkUnicode bazel source sets
2021-08-09 robertphillips@google.com Revert "[COLRv1] Support retrieving ClipBox."
2021-08-09 bsalomon@google.com Rename GrGLSLFragmentProcessor to GrFragmentProcessor::ProgramImpl
2021-08-09 reed@google.com Clean up unflattening paints
2021-08-09 michaelludwig@google.com Avoid unnecessary setting of display params in Viewer
2021-08-09 fmalita@chromium.org Remove unneeded skottie_android dep
2021-08-09 michaelludwig@google.com Enable new GrClipStack on Android
2021-08-09 drott@chromium.org [COLRv1] Support retrieving ClipBox.

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 robertphillips@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/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': 'ad5944cf8dbbe2ccfb5e313aaba3cd7d59414f14',
+  'skia_revision': '23d8f94535813d7c973af69aaeb67a0e5d7c9140',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: d29739fa9d3c3a29c6629f10ac43012f
+Signature: 220af64e2b1faa2466d2645cad6fb49c
 
 UNUSED LICENSES:
 
@@ -1842,17 +1842,13 @@ FILE: ../../../third_party/skia/src/effects/imagefilters/SkShaderImageFilter.cpp
 FILE: ../../../third_party/skia/src/gpu/GrAppliedClip.h
 FILE: ../../../third_party/skia/src/gpu/GrAuditTrail.cpp
 FILE: ../../../third_party/skia/src/gpu/GrAuditTrail.h
-FILE: ../../../third_party/skia/src/gpu/GrClipStackClip.cpp
-FILE: ../../../third_party/skia/src/gpu/GrClipStackClip.h
 FILE: ../../../third_party/skia/src/gpu/GrColorSpaceXform.cpp
 FILE: ../../../third_party/skia/src/gpu/GrColorSpaceXform.h
 FILE: ../../../third_party/skia/src/gpu/GrDirectContextPriv.h
 FILE: ../../../third_party/skia/src/gpu/GrFixedClip.h
 FILE: ../../../third_party/skia/src/gpu/GrOpsRenderPass.cpp
 FILE: ../../../third_party/skia/src/gpu/GrOpsRenderPass.h
 FILE: ../../../third_party/skia/src/gpu/GrProgramDesc.cpp
-FILE: ../../../third_party/skia/src/gpu/GrReducedClip.cpp
-FILE: ../../../third_party/skia/src/gpu/GrReducedClip.h
 FILE: ../../../third_party/skia/src/gpu/GrRenderTargetProxy.cpp
 FILE: ../../../third_party/skia/src/gpu/GrRenderTargetProxy.h
 FILE: ../../../third_party/skia/src/gpu/GrResourceHandle.h