Roll Skia from a8160d808252 to b472cacb48d6 (1 revision) (flutter#54653)

https://skia.googlesource.com/skia.git/+log/a8160d808252..b472cacb48d6

2024-08-20 skia-autoroll@skia-public.iam.gserviceaccount.com Manual roll Dawn from ae5dd592666e to 40d470c73393 (8 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,jimgraham@google.com,rmistry@google.com,robertphillips@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': 'a8160d80825248e995db27441b1f87223ee332aa',
+ 'skia_revision': 'b472cacb48d6a00d745a34e974983a9e7b18a346',
 
  # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
  # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.