Roll Skia from 28698696f1b3 to 3354f8c4f8cb (2 revisions)

https://skia.googlesource.com/skia.git/+log/28698696f1b3..3354f8c4f8cb

2021-02-12 [email protected] Simplify stroke join definitions in tessellation shaders
2021-02-12 [email protected] Remove ternary Lvalue support in SPIR-V.

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 [email protected] 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/+doc/master/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -27,7 +27,7 @@ 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': '28698696f1b34a8df28f1428686efd4eadc241a9',
+  'skia_revision': '3354f8c4f8cb548037b9fc7852fd5efaaa340241',
 
   # 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: 9a6140b5ba17f0eb3d7f11f7168d3832
+Signature: f867c1242c6b7c4607e7109c1b2f91c9
 
 UNUSED LICENSES: