Roll Skia from d9d5ef855d75 to b81084128325 (2 revisions)

https://skia.googlesource.com/skia.git/+log/d9d5ef855d75..b81084128325

2023-08-03 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE from 5d4b3645d0dc to 6a09e41ce6ea (9 revisions)
2023-08-03 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SK Tool from 0808f27d717b to 61a1004acf75

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 brianosman@google.com,jacksongardner@google.com,jvanverth@google.com,rmistry@google.com 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

@@ -18,7 +18,7 @@ vars = {
   'llvm_git': 'https://llvm.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': 'd9d5ef855d75a47f335d9d09a008f0673598aab9',
+  'skia_revision': 'b8108412832504761a799be9a83f56a399d4f16c',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.