Roll Skia from 26eb1876de72 to cb6ea5bd807d (2 revisions) (flutter#54241

)

https://skia.googlesource.com/skia.git/+log/26eb1876de72..cb6ea5bd807d

2024-07-31 bungeman@google.com Remove __MSVC_RUNTIME_CHECKS support
2024-07-31 jvanverth@google.com Revert "[ganesh] Check for null ThreadSafeProxy in GrImageContext::abandoned()"

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,johnstiles@google.com,rmistry@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': '26eb1876de72992b50a2c7fc39f63787a94885d1',
+  'skia_revision': 'cb6ea5bd807d56c0daf779df31e2e72743611b5a',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: f4f567c90307be97638f1e3542af9f90
+Signature: 57a5da6593d2a1f7198c7c782fae0bbe
 
 ====================================================================================================
 LIBRARY: etc1