Roll Skia from afd8a6c6ae87 to b6d158aaf3dd (3 revisions) (#18588)

diff --git a/DEPS b/DEPS
index fa34ece..7c341c9 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': 'afd8a6c6ae87d9462b0094e8c0009b226cc45f1f',
+  'skia_revision': 'b6d158aaf3ddd44a2b6bb2428de65b94645427d6',
 
   # 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 f9d8e18..6fcfc58 100644
--- a/ci/licenses_golden/licenses_skia
+++ b/ci/licenses_golden/licenses_skia
@@ -1,4 +1,4 @@
-Signature: 34c18e2491e24617448b31acb23a9840
+Signature: 146315b65820981efa22a0f118591750
 
 UNUSED LICENSES: