Roll src/third_party/skia 90043480b587..1179d5dfaf8d (3 commits) (#7995)

https://skia.googlesource.com/skia.git/%2Blog/90043480b587..1179d5dfaf8d

git log 90043480b587b627b255e8010b23b0f2dff3a8c9..1179d5dfaf8d0a2a7c6c8f7e997dd267b118d5db --date=short --no-merges --format=%ad %ae %s
2019-02-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 aaa17b8528d8..4b314eefc839 (2 commits)
2019-02-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 3014e76bab03..201f136c9907 (1 commits)
2019-02-28 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader dfc0f3b7a757..3014e76bab03 (1 commits)

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 (scroggo@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': '90043480b587b627b255e8010b23b0f2dff3a8c9',
+  'skia_revision': '1179d5dfaf8d0a2a7c6c8f7e997dd267b118d5db',
 
   # 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: f86ecf445ce41fd5cdd109670d3a3e06
+Signature: f25dc20a23aafd38437994dfd80cdd57
 
 UNUSED LICENSES: