Roll src/third_party/skia 880b6ea52bf0..346ce63daa51 (1 commits) (#7861)

https://skia.googlesource.com/skia.git/%2Blog/880b6ea52bf0..346ce63daa51

git log 880b6ea52bf00ea9621ee90e6b48f7fbc453fe8d..346ce63daa511ffc7fd728aa0698097274b91462 --date=short --no-merges --format=%ad %ae %s
2019-02-16 fmalita@chromium.org Add a SkMixerColorFilter GM

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': '880b6ea52bf00ea9621ee90e6b48f7fbc453fe8d',
+  'skia_revision': '346ce63daa511ffc7fd728aa0698097274b91462',
 
   # 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: fdad52cc7a1181ea7c03fa13bccd2cd1
+Signature: 94017eaa2abe4dcf08db41c433b0850e
 
 UNUSED LICENSES:
 
@@ -4930,8 +4930,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 ====================================================================================================
 LIBRARY: skia
-ORIGIN: ../../../third_party/skia/gm/skbug_8664.cpp + ../../../third_party/skia/LICENSE
+ORIGIN: ../../../third_party/skia/gm/mixercolorfilter.cpp + ../../../third_party/skia/LICENSE
 TYPE: LicenseType.bsd
+FILE: ../../../third_party/skia/gm/mixercolorfilter.cpp
 FILE: ../../../third_party/skia/gm/skbug_8664.cpp
 FILE: ../../../third_party/skia/include/gpu/GrContextThreadSafeProxy.h
 FILE: ../../../third_party/skia/include/private/GrContext_Base.h