Roll Skia from e17b0501963a to 453f67ff0ade (28 revisions) (#21732)

https://skia.googlesource.com/skia.git/+log/e17b0501963a..453f67ff0ade

2020-10-09 ethannicholas@google.com SkSL enum changes
2020-10-09 egdaniel@google.com Suppress vulkan validation layers bug.
2020-10-09 ethannicholas@google.com more SkSL IRNode refactoring
2020-10-09 egdaniel@google.com Make sure the normal GrProgramDesc handles input attachment key.
2020-10-09 michaelludwig@google.com SkDevice::drawSpecial accepts arbitrary matrix v2
2020-10-09 brianosman@google.com Reorganize how SkSL includes are parsed and stored
2020-10-09 johnstiles@google.com Reland "Add sk_Caps.builtinDeterminantSupport and use it in cross()."
2020-10-09 adlai@google.com Reland "Merge GrContext::init into GrDirectContext ..."
2020-10-09 johnstiles@google.com Add test for sk_Caps.mustGuardDivisionEvenAfterExplicitZeroCheck.
2020-10-09 johnstiles@google.com Add test for sk_Caps.inBlendModesFailRandomlyForAllZeroVec.
2020-10-09 johnstiles@google.com Reland "Put top level FPs into their own functions"
2020-10-09 ethannicholas@google.com refactored more SkSL IRNodes
2020-10-09 egdaniel@google.com Reland "Rename GrStencilAttachment class to generic GrAttachment"
2020-10-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from af82ff2606e9 to 4a368eae5a6f (468 revisions)
2020-10-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 5f4e70b81046 to 952149303d06 (1 revision)
2020-10-09 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn from 6b4a4a85dfd7 to 793a07e36636 (12 revisions)
2020-10-09 jvanverth@google.com Revert "Add sk_Caps.builtinDeterminantSupport and use it in cross()."
2020-10-09 brianosman@google.com Remove custom iterators from SkSL::Program
2020-10-08 jvanverth@google.com Revert "Rename GrStencilAttachment class to generic GrAttachment"
2020-10-08 johnstiles@google.com Add sk_Caps.builtinDeterminantSupport and use it in cross().
2020-10-08 michaelludwig@google.com Add SkImageFilters::Shader in place of Paint factory
2020-10-08 michaelludwig@google.com Clip perspective bounds by device clip in SkPDFDevice
2020-10-08 jvanverth@google.com Revert "Merge GrContext::init into GrDirectContext ..."
2020-10-08 jvanverth@google.com Add push constant support to GrCaps.
2020-10-08 adlai@google.com Merge GrContext::init into GrDirectContext ...
2020-10-08 bsalomon@google.com Expose ManagedBackendTexture from BackendTextureImageFactory.
2020-10-08 kjlubick@google.com [canvaskit] Attempt to turn off rtti
2020-10-08 johnstiles@google.com Use SkSTArray to track CFG exits instead of std<set>.

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 jvanverth@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

DEPS

@@ -26,7 +26,7 @@ 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': 'e17b0501963aac4840e280c7ac175fd38e4a0c9d',
+  'skia_revision': '453f67ff0adeb1d4c0274fa0493eb788d046c14c',
 
   # 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

-Signature: c05ecdf25a4f555ea48de1e26068b217
+Signature: 57bfe5341c44882bab9791c862ab34b2
 
 UNUSED LICENSES: