Roll src/third_party/skia 6305b2f8342a..0ee16f689843 (2 commits) (#16286)

https://skia.googlesource.com/skia.git/+log/6305b2f8342a..0ee16f689843

git log 6305b2f8342a..0ee16f689843 --date=short --first-parent --format='%ad %ae %s'
2020-01-31 herb@google.com Add reverse iterators to SkSpan
2020-01-30 herb@google.com Cleanup GrStrike management because we do not abandon strikes

Created with:
  gclient setdep -r src/third_party/skia@0ee16f689843

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC reed@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Bug: None
Tbr: reed@google.com

DEPS

@@ -26,7 +26,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '6305b2f8342a75c34c96698d536894963b448e9d',
+  'skia_revision': '0ee16f6898432bf3241a1a8876ecb864859849a8',
 
   # 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: 25e40a8ae9da4311553a55d4a0a5fe28
+Signature: ed38bcaff441d930f4799d60e2ae574f
 
 UNUSED LICENSES: