Roll src/third_party/skia 3d1b941..bea1f94 (7 commits) (#8083)

https://skia.googlesource.com/skia.git/%2Blog/3d1b941f3a7d..bea1f94f341e

git log 3d1b941..bea1f94 --date=short --no-merges --format=%ad %ae %s
2019-03-08 mtklein@google.com remove platform_font_manager()
2019-03-08 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 6203340..d2b1d2f (1 commits)
2019-03-08 reed@google.com change load/store_rgba to have src and dst variants
2019-03-07 jcgregorio@google.com Get doxygen working again.
2019-03-07 ethannicholas@google.com Fixed a couple of Vulkan bugs
2019-03-08 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 3ed33ce..6203340 (1 commits)
2019-03-07 benjaminwagner@google.com Add CMake asset for macOS.

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 (reed@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': '3d1b941f3a7d84d9bc83cf2ad1050bc608193c56',
+  'skia_revision': 'bea1f94f341e8b0466ea2bfbda3f3ba44a2fda5c',
 
   # 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: 8bdb80f9946ca01423af71f6555e5c39
+Signature: 9107ca6e7b9595ef1a2eff8ea828c5c4
 
 UNUSED LICENSES:
 
@@ -2005,7 +2005,6 @@ TYPE: LicenseType.bsd
 FILE: ../../../third_party/skia/.clang-tidy
 FILE: ../../../third_party/skia/CQ_COMMITTERS
 FILE: ../../../third_party/skia/DEPS
-FILE: ../../../third_party/skia/Doxyfile
 FILE: ../../../third_party/skia/animations/checkbox.xml
 FILE: ../../../third_party/skia/animations/chest#1.jpg
 FILE: ../../../third_party/skia/animations/fire#1.jpg
@@ -2131,6 +2130,7 @@ FILE: ../../../third_party/skia/infra/bots/assets/chromebook_x86_64_gles/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/clang_linux/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/clang_win/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/cmake_linux/VERSION
+FILE: ../../../third_party/skia/infra/bots/assets/cmake_mac/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/gcloud_linux/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/go/VERSION
 FILE: ../../../third_party/skia/infra/bots/assets/go_deps/VERSION