Roll src/third_party/skia ff84d8a900d4..67d87128fd00 (7 commits) (flutter#7987)

https://skia.googlesource.com/skia.git/%2Blog/ff84d8a900d4..67d87128fd00

git log ff84d8a900d4b9dd4d4aa7a9569425f0ac234830..67d87128fd001b7fc049e65af7c7a3b5240c4a11 --date=short --no-merges --format=%ad %ae %s
2019-02-27 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 5edafb5ac109..928dfeed1796 (2 commits)
2019-02-26 borenet@google.com [recipes] Plumb task ID through to DM results
2019-02-27 brianosman@google.com Particles: Improvements to SkCurve
2019-02-27 reed@google.com Avoid forcing rasterpipeline due to device colorspace
2019-02-27 kjlubick@google.com update canvaskit docs to new API
2019-02-27 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader ead1a345a36c..5edafb5ac109 (1 commits)
2019-02-27 recipe-roller@chromium.org Roll recipe dependencies (trivial).

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

Author: skia-flutter-autoroll

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': 'ff84d8a900d4b9dd4d4aa7a9569425f0ac234830',
+  'skia_revision': '67d87128fd001b7fc049e65af7c7a3b5240c4a11',
 
   # 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

@@ -1,4 +1,4 @@
-Signature: 1bea5458095c0f6e6943f64d781b6e6f
+Signature: 31a4ba58e2ed9670d2518bf9bbb627cb
 
 UNUSED LICENSES: