Roll src/third_party/skia ad1a0ca8be29..f82158fb7fdc (5 commits) (#8752)

https://skia.googlesource.com/skia.git
/%2Blog/ad1a0ca8be29..f82158fb7fdc

git log ad1a0ca8be29c1d57e24aba149c2d6c251395f89..f82158fb7fdc233ea32598d795a656e7a08adb1e --date=short --no-merges --format=%ad %ae %s
2019-04-25 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-26 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update go_deps asset
2019-04-26 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 1b0acbb5126e..6f691fbb59c7 (5 commits)
2019-04-26 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src ea73ef568188..07c444c4d281 (439 commits)
2019-04-25 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com 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 (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': 'ad1a0ca8be29c1d57e24aba149c2d6c251395f89',
+  'skia_revision': 'f82158fb7fdc233ea32598d795a656e7a08adb1e',
 
   # 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: d481e79113a128510097489d3b693bc2
+Signature: d227cb2f333eea96f4bb6c19aa8bdf9e
 
 UNUSED LICENSES: