Roll src/third_party/skia 0b496ff92fce..6cd82342937a (1 commits) (flutter/engine#7857)

https://skia.googlesource.com/skia.git/%2Blog/0b496ff92fce..6cd82342937a

git log 0b496ff92fce253b21ed9e72ab796de0ba50526b..6cd82342937a2835129fea44b6f62b0d23dc2d35 --date=short --no-merges --format=%ad %ae %s
2019-02-16 fmalita@chromium.org Simplify optional input handling in SkMixerColorFilter

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': '0b496ff92fce253b21ed9e72ab796de0ba50526b',
+  'skia_revision': '6cd82342937a2835129fea44b6f62b0d23dc2d35',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

engine/src/flutter/ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 762d2906533f62ab9c466f588a8764c0
+Signature: a0668a31e154ad409e5f8687d0601046
 
 UNUSED LICENSES: