Roll Skia from 13fc260c7080 to aa64c352b349 (1 revision) (flutter#21752)

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': '13fc260c7080d2122a7e7152c9385d914cd20be7',
+  'skia_revision': 'aa64c352b349a779e98d903eda594dd0ce502736',
 
   # 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: c252752f32283d7bfc5847ad8abb5106
+Signature: 1ddc21dfb8c528f98d2a0fc2bdf73821
 
 UNUSED LICENSES:
 
@@ -2781,7 +2781,6 @@ FILE: ../../../third_party/skia/src/core/SkDrawLooper.cpp
 FILE: ../../../third_party/skia/src/core/SkFontStream.h
 FILE: ../../../third_party/skia/src/core/SkGpuBlurUtils.cpp
 FILE: ../../../third_party/skia/src/core/SkGpuBlurUtils.h
-FILE: ../../../third_party/skia/src/core/SkLegacyGpuBlurUtils.cpp
 FILE: ../../../third_party/skia/src/core/SkMatrixUtils.h
 FILE: ../../../third_party/skia/src/core/SkMessageBus.h
 FILE: ../../../third_party/skia/src/core/SkMipmap.cpp