Roll Skia from ed4294faecde to 641994569415 (4 revisions) (flutter#177264)

https://skia.googlesource.com/skia.git/+log/ed4294faecde..641994569415

2025-10-20 borenet@google.com [infra] Add wait_for_device.py
2025-10-20 mike@reedtribe.org Move compute-tight-bounds impl to priv
2025-10-20 briansalomon@gmail.com Split out generic non-Ganesh
ComparePixels
2025-10-20 kjlubick@google.com Make Dawn args use fullpath

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 codefu@google.com,jmbetancourt@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': 'ed4294faecdee11b26dedc9f130d9a3c3ea3f9d7',
+  'skia_revision': '641994569415ae4ac2de895ea6da17073252e3dd',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.