Roll src/third_party/skia 99ccc0ca87e6..8d2c19554e4a (11 commits) (#8332)

https://skia.googlesource.com/skia.git/%2Blog/99ccc0ca87e6..8d2c19554e4a

git log 99ccc0ca87e6d255d1477923cec3a2b9732959ec..8d2c19554e4a1f9f75abaf1093558f9fc712ddf4 --date=short --no-merges --format=%ad %ae %s
2019-03-27 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 4c9f4a97ffe3..179c932426b3 (1 commits)
2019-03-27 csmartdalton@google.com Add MSAA and non-aa modes to GrFillRRect Op
2019-03-27 egdaniel@google.com Add support for vsync on android viewer.
2019-03-21 reed@google.com add bgra8 bgra8s and 8888s to explicitly control swizzle and srgb-ness in gpu[] configs
2019-03-27 mtklein@google.com add .svg sources to fm
2019-03-27 brianosman@google.com Allow Mock GrBackendTextures to masquerade as GL
2019-03-27 mtklein@google.com add --backend pdf to fm
2019-03-27 egdaniel@google.com Add vsync toggle for windows viewer.
2019-03-27 mtklein@google.com add --backend skp to fm
2019-03-27 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader e43cda5f76de..4c9f4a97ffe3 (1 commits)
2019-03-27 mtklein@google.com buildifier public.bzl

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 (stani@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': '99ccc0ca87e6d255d1477923cec3a2b9732959ec',
+  'skia_revision': '8d2c19554e4a1f9f75abaf1093558f9fc712ddf4',
 
   # 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: 34a282f02f7fb9a128e84ed0217e8743
+Signature: de6d3f4aa462810f8b52a646cac334d6
 
 UNUSED LICENSES: