Roll Skia from 7fc705bdd7e9 to b6a7319f211c (2 revisions) (#27624)

diff --git a/DEPS b/DEPS
index 456f76c..9eeb723 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': '7fc705bdd7e9849f1e08fc8d2da43c7732883f57',
+  'skia_revision': 'b6a7319f211c3ed2e16a8000281ed65005627c63',
 
   # 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 4e5d441..5707330 100644
--- a/ci/licenses_golden/licenses_skia
+++ b/ci/licenses_golden/licenses_skia
@@ -1,4 +1,4 @@
-Signature: 10f47da4490d50bfece06fc26d249db0
+Signature: 8fa7ea34699a5509cf62587f240be3e6
 
 UNUSED LICENSES:
 
@@ -5169,6 +5169,7 @@
 FILE: ../../../third_party/skia/src/core/SkBlenderBase.h
 FILE: ../../../third_party/skia/src/core/SkMatrixInvert.cpp
 FILE: ../../../third_party/skia/src/core/SkMatrixInvert.h
+FILE: ../../../third_party/skia/src/core/SkVMBlitter.h
 FILE: ../../../third_party/skia/src/core/SkYUVAInfoLocation.h
 FILE: ../../../third_party/skia/src/effects/SkBlenders.cpp
 FILE: ../../../third_party/skia/src/effects/imagefilters/SkRuntimeImageFilter.cpp