Roll src/third_party/skia cb7149e05864..98c65fc9558f (3 commits) (flutter#7498)

https://skia.googlesource.com/skia.git/%2Blog/cb7149e05864..98c65fc9558f

git log cb7149e0586409f25fa76f3a8f9fcd7ecbb8029d..98c65fc9558ff78a192709c8467e65a05b09293d --date=short --no-merges --format=%ad %ae %s
2019-01-15 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-01-15 recipe-roller@chromium.org Roll recipe dependencies (trivial).
2019-01-07 herb@google.com Switch to bulk api for GPU mask (BMP) drawing.

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 (halcanary@google.com), and stop
the roller if necessary.

Author: skia-flutter-autoroll

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': 'cb7149e0586409f25fa76f3a8f9fcd7ecbb8029d',
+  'skia_revision': '98c65fc9558ff78a192709c8467e65a05b09293d',
 
   # 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: 906a8f8c6f4e8c24bdfcc2656053e44a
+Signature: 587015a84a61fccb105a958becad7bc5
 
 UNUSED LICENSES: