Roll src/third_party/skia bfa76f20bfcf..4504a652c071 (14 commits) (flutter#6421)

https://skia.googlesource.com/skia.git/+log/bfa76f20bfcf..4504a652c071


Created with:
  gclient setdep -r src/third_party/skia@4504a652c071

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

Author: skia-flutter-autoroll

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': 'bfa76f20bfcf46e8a3ae53dd0957bbb0216a3ed8',
+  'skia_revision': '4504a652c071ebcaf7c47ee0776c4e55cf73650a',
 
   # 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: 399cdb65314267a828389673f77bd9f5
+Signature: e929f769731ca95f9225787a0c5a7ce9
 
 UNUSED LICENSES:
 
@@ -827,7 +827,6 @@ FILE: ../../../third_party/skia/include/codec/SkCodecAnimation.h
 FILE: ../../../third_party/skia/include/core/SkBlendMode.h
 FILE: ../../../third_party/skia/include/core/SkClipOp.h
 FILE: ../../../third_party/skia/include/core/SkColorSpace.h
-FILE: ../../../third_party/skia/include/core/SkColorSpaceXform.h
 FILE: ../../../third_party/skia/include/core/SkICC.h
 FILE: ../../../third_party/skia/include/core/SkMilestone.h
 FILE: ../../../third_party/skia/include/core/SkOverdrawCanvas.h
@@ -971,7 +970,6 @@ FILE: ../../../third_party/skia/src/core/SkClipOpPriv.h
 FILE: ../../../third_party/skia/src/core/SkColorMatrixFilterRowMajor255.h
 FILE: ../../../third_party/skia/src/core/SkColorSpace.cpp
 FILE: ../../../third_party/skia/src/core/SkColorSpacePriv.h
-FILE: ../../../third_party/skia/src/core/SkColorSpaceXform.cpp
 FILE: ../../../third_party/skia/src/core/SkCpu.cpp
 FILE: ../../../third_party/skia/src/core/SkCpu.h
 FILE: ../../../third_party/skia/src/core/SkDeduper.h