Roll src/third_party/skia 20ebd0cb3882..348227b89430 (4 commits) (#7900)

https://skia.googlesource.com/skia.git/%2Blog/20ebd0cb3882..348227b89430

git log 20ebd0cb3882d1bdeed04eaa983b0e5842f0fdaf..348227b8943013f86d689bac0f8db8b287e96d97 --date=short --no-merges --format=%ad %ae %s
2019-02-20 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-02-21 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update go_deps asset
2019-02-21 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 902ceed39986..eef531f1716a (2 commits)
2019-02-20 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 (jvanverth@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': '20ebd0cb3882d1bdeed04eaa983b0e5842f0fdaf',
+  'skia_revision': '348227b8943013f86d689bac0f8db8b287e96d97',
 
   # 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: 80158806ee7715512b12aa7651039efe
+Signature: 7ed7cdd0833f8ee6a543292f0775c7d8
 
 UNUSED LICENSES:
 

sky/packages/sky_engine/LICENSE

@@ -2808,7 +2808,6 @@ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 --------------------------------------------------------------------------------
 boringssl
-engine
 etc1
 observatory_pub_packages
 skia