Roll Skia from 31b0ed0c0054 to 3dce2d4ee4f3 (1 revision) (#43880)

https://skia.googlesource.com/skia.git/+log/31b0ed0c0054..3dce2d4ee4f3

2023-07-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 4e401427f8dd to 4a260c12b8c1 (1 revision)

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 bdero@google.com,brianosman@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': '31b0ed0c0054d53305630eaf405487a085cca3da',
+  'skia_revision': '3dce2d4ee4f38948aaf32d43c87220c458d6dc5b',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.