Roll Skia from f4e59f82dc69 to 789ad6b12776 (7 revisions) (flutter#184098)

https://skia.googlesource.com/skia.git/+log/f4e59f82dc69..789ad6b12776

2026-03-25
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2026-03-24 bungeman@google.com [shaper] Ignore
hb_font_funcs_set_variation_glyph_func
2026-03-24 fmalita@google.com [skottie] Workaround for CoreText autosize
issues
2026-03-24
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2026-03-24
recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com
Roll recipe dependencies (trivial).
2026-03-24 michaelludwig@google.com Add R16_float_SkColorType
2026-03-24 michaelludwig@google.com [graphite] Add support for 3-channel
texture format conversions

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,kjlubick@google.com,michaelludwig@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': 'f4e59f82dc698fa29c52c85d1cb74b09cc12f641',
+  'skia_revision': '789ad6b1277636bc4e205a9035eecbcad24d67ee',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.