Roll Skia from 3a9e6b6a4721 to 6e4a2f266a17 (1 revision)

https://skia.googlesource.com/skia.git/+log/3a9e6b6a4721..6e4a2f266a17

2024-10-10 skia-autoroll@skia-public.iam.gserviceaccount.com Roll vulkan-deps from 458c840c3ccf to 4480c8e9e59c (6 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 brianosman@google.com,jacksongardner@google.com,jvanverth@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

DEPS

@@ -14,7 +14,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': '3a9e6b6a472129ff91a5177017ae4cf057c5261d',
+  'skia_revision': '6e4a2f266a177dae3159c3ee838d9e9775526692',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.