Roll Skia from 25a8404 to 8c57866 (17 revisions) (#18704)

Author: skia-flutter-autoroll

DEPS

@@ -26,7 +26,7 @@ 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': '25a8404bd150f50312daf07eb1be0290d94b4a19',
+  'skia_revision': '8c5786622b4ecf6024356be5d5395bd1c8b1fa6f',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: b179d8dd43d193053c482d9c1efdafe8
+Signature: 464d6b35254435f49dfcad5ea56935f2
 
 UNUSED LICENSES:
 
@@ -3973,11 +3973,10 @@ FILE: ../../../third_party/skia/src/gpu/d3d/GrD3DTypesPriv.cpp
 FILE: ../../../third_party/skia/src/gpu/d3d/GrD3DUtil.cpp
 FILE: ../../../third_party/skia/src/gpu/d3d/GrD3DUtil.h
 FILE: ../../../third_party/skia/src/gpu/effects/GrDeviceSpaceEffect.fp
-FILE: ../../../third_party/skia/src/gpu/effects/GrMatrixEffect.fp
+FILE: ../../../third_party/skia/src/gpu/effects/GrMatrixEffect.cpp
+FILE: ../../../third_party/skia/src/gpu/effects/GrMatrixEffect.h
 FILE: ../../../third_party/skia/src/gpu/effects/generated/GrDeviceSpaceEffect.cpp
 FILE: ../../../third_party/skia/src/gpu/effects/generated/GrDeviceSpaceEffect.h
-FILE: ../../../third_party/skia/src/gpu/effects/generated/GrMatrixEffect.cpp
-FILE: ../../../third_party/skia/src/gpu/effects/generated/GrMatrixEffect.h
 FILE: ../../../third_party/skia/src/gpu/geometry/GrShape.cpp
 FILE: ../../../third_party/skia/src/gpu/geometry/GrShape.h
 FILE: ../../../third_party/skia/src/gpu/glsl/GrGLSLUniformHandler.cpp