Roll Skia from 23d333bdd6a0 to 294aaf945757 (7 revisions) (flutter#32996)

Author: skia-flutter-autoroll

DEPS

@@ -27,7 +27,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '23d333bdd6a04cb0dd95c27c8390b83db72fad71',
+  'skia_revision': '294aaf9457577b5966bf45b9135b7e0d12bacb37',
 
   # 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: 196d1fb1e997f73ac24720c2553327d7
+Signature: d2572ace40e6a61beb0e7b4e61c4d225
 
 UNUSED LICENSES:
 
@@ -6216,6 +6216,8 @@ FILE: ../../../third_party/skia/src/gpu/graphite/Sampler.h
 FILE: ../../../third_party/skia/src/gpu/graphite/TextureProxyView.h
 FILE: ../../../third_party/skia/src/gpu/graphite/TextureUtils.cpp
 FILE: ../../../third_party/skia/src/gpu/graphite/TextureUtils.h
+FILE: ../../../third_party/skia/src/gpu/graphite/UploadBufferManager.cpp
+FILE: ../../../third_party/skia/src/gpu/graphite/UploadBufferManager.h
 FILE: ../../../third_party/skia/src/gpu/graphite/UploadTask.cpp
 FILE: ../../../third_party/skia/src/gpu/graphite/UploadTask.h
 FILE: ../../../third_party/skia/src/gpu/graphite/mtl/MtlSampler.h