Roll src/third_party/skia 8413ff13fefa..b14574924ab3 (4 commits) (#8745)

https://skia.googlesource.com/skia.git
/%2Blog/8413ff13fefa..b14574924ab3

git log 8413ff13fefa1e88cd3fc67ebaed87c9eb3419c7..b14574924ab332c1b6ce9afabdc03820540aab1e --date=short --no-merges --format=%ad %ae %s
2019-04-25 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-25 brianosman@google.com Turn off warnings as errors in SwiftShader
2019-04-25 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-25 csmartdalton@google.com Revert "ccpr: Set atlas proxy size to draw bounds rather than backing size"

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 (mtklein@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': '8413ff13fefa1e88cd3fc67ebaed87c9eb3419c7',
+  'skia_revision': 'b14574924ab332c1b6ce9afabdc03820540aab1e',
 
   # 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: 5924f585f00089f00b6d107419c4f1b5
+Signature: 9a7691b8cb6dcfa278ad1b7c9c32632c
 
 UNUSED LICENSES: