Roll Skia from 49e32eb178a7 to 927f20598b11 (3 revisions) (flutter/engine#48956)

https://skia.googlesource.com/skia.git/+log/49e32eb178a7..927f20598b11

2023-12-12 skia-autoroll@skia-public.iam.gserviceaccount.com Roll vulkan-deps from ebfd5875d4b7 to 50d52367e3b3 (6 revisions)
2023-12-12 kjlubick@google.com Fix defines for G3 android build
2023-12-12 michaelludwig@google.com [skif] Add non-strict asShader() to SkSpecialImage

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,jsimmons@google.com,michaelludwig@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

@@ -18,7 +18,7 @@ vars = {
   'llvm_git': 'https://llvm.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '49e32eb178a7b6ed5c598182329bf4f21e51157d',
+  'skia_revision': '927f20598b11040c3265369e6da1ee3732cbb9e3',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: eb7c1c00c058202a4a1c11a16e8ba4eb
+Signature: 2fd4d8d4611505dfd9381dc1ada23cf1
 
 ====================================================================================================
 LIBRARY: etc1