Roll src/third_party/skia 8c14038e56c3..d7a5a1d27e1d (5 commits) (#7683)

https://skia.googlesource.com/skia.git/%2Blog/8c14038e56c3..d7a5a1d27e1d

git log 8c14038e56c37e5b41c066c1b1825fe32c257d01..d7a5a1d27e1d3ecc1ef4dfa1cef38195daf99f67 --date=short --no-merges --format=%ad %ae %s
2019-02-04 csmartdalton@google.com Add a central skiagm::GM::DrawFailureMessage for error messages
2019-02-04 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader cd610c9a9dbc..3f5a479280cc (1 commits)
2019-02-04 scroggo@google.com Remove temporarily_sanitize
2019-02-04 mtklein@google.com use std::underlying_type
2019-02-04 reed@google.com remove legacy includes

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 (fmalita@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': '8c14038e56c37e5b41c066c1b1825fe32c257d01',
+  'skia_revision': 'd7a5a1d27e1d3ecc1ef4dfa1cef38195daf99f67',
 
   # 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: b282d702baeeda6d0f1c176ca7bb29c4
+Signature: f062937692335a9be503b3b81928e6ba
 
 UNUSED LICENSES: