Roll src/third_party/skia d562545e8a23..4f81bb73311d (1 commits) (#7561)

https://skia.googlesource.com/skia.git/%2Blog/d562545e8a23..4f81bb73311d

git log d562545e8a239e18bf9dfdc6959b12780507b1ca..4f81bb73311d8fddb99a3a42b65334de681dd595 --date=short --no-merges --format=%ad %ae %s
2019-01-23 reed@google.com remove all support for drawText

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 (djsollen@google.com), and stop
the roller if necessary.

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': 'd562545e8a239e18bf9dfdc6959b12780507b1ca',
+  'skia_revision': '4f81bb73311d8fddb99a3a42b65334de681dd595',
 
   # 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

-Signature: da907435ac162198feec32c67154b6f6
+Signature: fb7eda6e6154051f6c1ea72e2b7c4240
 
 UNUSED LICENSES: