Roll Skia from af8db303f7f4 to a50940da6d67 (1 revision) (#24515)

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': 'af8db303f7f4ea9e278c3450b7e8105813f726b6',
+  'skia_revision': 'a50940da6d677632f2a8fdc962089f564a82b1c4',
 
   # 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

-Signature: 1041067db26da5a82e901ace8f96d69c
+Signature: 31e95643420d2c3b642198059b6d86f1
 
 UNUSED LICENSES:
 
@@ -4047,7 +4047,6 @@ FILE: ../../../third_party/skia/src/core/SkImageFilter.cpp
 FILE: ../../../third_party/skia/src/core/SkUtilsArm.cpp
 FILE: ../../../third_party/skia/src/effects/imagefilters/SkColorFilterImageFilter.cpp
 FILE: ../../../third_party/skia/src/effects/imagefilters/SkLightingImageFilter.cpp
-FILE: ../../../third_party/skia/src/effects/imagefilters/SkLightingImageFilter.h
 FILE: ../../../third_party/skia/src/effects/imagefilters/SkMagnifierImageFilter.cpp
 FILE: ../../../third_party/skia/src/effects/imagefilters/SkMagnifierImageFilter.h
 FILE: ../../../third_party/skia/src/effects/imagefilters/SkMatrixConvolutionImageFilter.cpp