Roll Skia from 5035cdc7de31 to 18457971c30f (1 revision) (flutter#177767)

https://skia.googlesource.com/skia.git/+log/5035cdc7de31..18457971c30f

2025-10-30 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE
from bf371eff8421 to d763609022a4 (7 revisions)

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 jlavrova@google.com,jsimmons@google.com,kjlubick@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://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Author: engine-flutter-autoroll

DEPS

@@ -15,7 +15,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': '5035cdc7de31f72e5b0fd77a7248f732e1da2bb3',
+  'skia_revision': '18457971c30f00bb64c6b5287f25ca738c779181',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.