Roll src/third_party/skia 263b89711802..ef3556df44b2 (4 commits) (#18468)

diff --git a/DEPS b/DEPS
index 8512ca3..a9fefa9 100644
--- a/DEPS
+++ b/DEPS
@@ -26,7 +26,7 @@
   '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': '263b8971180252f96a4f322fabffbb71d81fcf2d',
+  'skia_revision': 'ef3556df44b2d0ec175bd3b2e29d9200eda2acff',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the
diff --git a/ci/licenses_golden/licenses_skia b/ci/licenses_golden/licenses_skia
index 1588eb3..8f5963c 100644
--- a/ci/licenses_golden/licenses_skia
+++ b/ci/licenses_golden/licenses_skia
@@ -1,4 +1,4 @@
-Signature: 28a395d9741756a1c8c7470e0fa0feb3
+Signature: 1def120e0c1c29e2548f2a8f3fbcde6a
 
 UNUSED LICENSES: