Roll Skia from b1f34bf3c2cb to 6b9c7bb81419 (1 revision) (#28101)

diff --git a/DEPS b/DEPS
index 3db0806..5448a9f 100644
--- a/DEPS
+++ b/DEPS
@@ -27,7 +27,7 @@
   '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': 'b1f34bf3c2cb488947800549724d3bae28126895',
+  'skia_revision': '6b9c7bb81419a6374cf0f4812845b3a21a686c73',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.
diff --git a/ci/licenses_golden/licenses_skia b/ci/licenses_golden/licenses_skia
index 3b4a4ff..39f333b 100644
--- a/ci/licenses_golden/licenses_skia
+++ b/ci/licenses_golden/licenses_skia
@@ -1,4 +1,4 @@
-Signature: 9466e5581d3ff31a88343aafcae068ba
+Signature: 449d8ad50fed99ea594101018a9ed675
 
 UNUSED LICENSES: