Roll src/third_party/skia bd42540..79e5371 (3 commits) (#8783)

https://skia.googlesource.com/skia.git
/%2Blog/bd425405f3aa..79e5371

git log bd42540..79e5371 --date=short --no-merges --format=%ad %ae %s
2019-04-29 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-29 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-04-29 csmartdalton@google.com Reland "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 (ethannicholas@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': 'bd425405f3aa000c7258b8af2464d973c0a123c8',
+  'skia_revision': '79e53712a05fdd676eb84b612aaa996b2b1e7c19',
 
   # 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: 6a43d49c62050535ce48ad28473a4fe9
+Signature: 413f03c2e52764a59781be487eb28f0a
 
 UNUSED LICENSES: