Roll src/third_party/skia ac55784e3363..3fd1841161d1 (1 commits) (#8852)

https://skia.googlesource.com/skia.git
/%2Blog/ac55784e3363..3fd1841161d1

git log ac55784e33638f02b108aa0b0809040acd3cb7bc..3fd1841161d17c99a916da6fc0a2f8e5f06b962d --date=short --no-merges --format=%ad %ae %s
2019-05-05 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update SKP version

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 (robertphillips@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': 'ac55784e33638f02b108aa0b0809040acd3cb7bc',
+  'skia_revision': '3fd1841161d17c99a916da6fc0a2f8e5f06b962d',
 
   # 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: 7c30ef8a841ff2b68cd88fe8ffb74216
+Signature: 9d05681daf2571269ff74232a376ed25
 
 UNUSED LICENSES: