Roll Skia from 6f31e27f1e29 to 85fa75616dfe (7 revisions) (#23118)

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': '6f31e27f1e292cdd0f99673f94f92e5d2efd116b',
+  'skia_revision': '85fa75616dfe4666e83fd1f84415855a6fc56726',
 
   # 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: be705e873a1796d02a86b01223fe8a0e
+Signature: 1792678dacbcbbffb692725b6e184a51
 
 UNUSED LICENSES:
 
@@ -3941,6 +3941,8 @@ FILE: ../../../third_party/skia/src/gpu/GrStagingBufferManager.cpp
 FILE: ../../../third_party/skia/src/gpu/GrStagingBufferManager.h
 FILE: ../../../third_party/skia/src/gpu/GrStencilMaskHelper.cpp
 FILE: ../../../third_party/skia/src/gpu/GrStencilMaskHelper.h
+FILE: ../../../third_party/skia/src/gpu/GrSurfaceFillContext.cpp
+FILE: ../../../third_party/skia/src/gpu/GrSurfaceFillContext.h
 FILE: ../../../third_party/skia/src/gpu/GrUniformDataManager.cpp
 FILE: ../../../third_party/skia/src/gpu/GrUniformDataManager.h
 FILE: ../../../third_party/skia/src/gpu/GrUtil.cpp