Roll Skia from ff88cc168149 to 4f859fac52bc (6 revisions) (#181159)

https://skia.googlesource.com/skia.git/+log/ff88cc168149..4f859fac52bc

2026-01-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll
vulkan-deps from 054bfeafe598 to 677b48f20ec4 (2 revisions)
2026-01-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ANGLE
from 8f8fc461bbc2 to 713349950f98 (5 revisions)
2026-01-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Skia
Infra from 7b586743f3a3 to 649451a11ab2 (3 revisions)
2026-01-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll Dawn
from b6ad04f90bdb to d14ae3d97ad7 (6 revisions)
2026-01-19
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2026-01-19 skia-autoroll@skia-public.iam.gserviceaccount.com Roll
debugger-app-base from bc58f4cf14ce to a2de4c63b16c

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 jimgraham@google.com,jlavrova@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
diff --git a/DEPS b/DEPS
index e125752..6dc3cf8 100644
--- a/DEPS
+++ b/DEPS
@@ -15,7 +15,7 @@
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': 'ff88cc168149b2f19fb9daea1bbfab4e0cee41de',
+  'skia_revision': '4f859fac52bc19c55139eccd33772f69077e0cf7',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.