Roll src/third_party/skia d336ebdea812..77a1a7e6182e (5 commits) (#7784)

https://skia.googlesource.com/skia.git/%2Blog/d336ebdea812..77a1a7e6182e

git log d336ebdea812c4c260c2d10bb5a515b7a98a42c1..77a1a7e6182e6a8437e357cfa5725409e2d80e30 --date=short --no-merges --format=%ad %ae %s
2019-02-11 halcanary@google.com find_commit_with_best_gold_results takes arguments
2019-02-11 thakis@chromium.org Remove a few semicolons.
2019-02-11 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 9388dded242f..d9ce258c174b (1 commits)
2019-02-11 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 1fcc8416fd35..35663ddf4997 (90 commits)
2019-02-11 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 9686153413f3..9388dded242f (1 commits)

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 (stephana@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': 'd336ebdea812c4c260c2d10bb5a515b7a98a42c1',
+  'skia_revision': '77a1a7e6182e6a8437e357cfa5725409e2d80e30',
 
   # 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: 624fd8774b432d0287ace0dfd8d5705a
+Signature: 70f3c998dbf0358a95626af31051e3fb
 
 UNUSED LICENSES: