Roll src/third_party/skia e63b01b..f77dbd0 (19 commits) (flutter#9057)

https://skia.googlesource.com/skia.git
/%2Blog/e63b01b364a0..f77dbd0

git log e63b01b..f77dbd0 --date=short --no-merges --format=%ad %ae %s
2019-05-21 mtklein@google.com remove -ffp-contract
2019-05-22 senorblanco@chromium.org GrTessellator: improved straight skeleton implementation.
2019-05-21 herb@google.com Move SkFont over to SkStrikeSpecStorage
2019-05-21 csmartdalton@google.com Remove VisitorType from GrOp::visitProxies
2019-05-20 jvanverth@google.com Fix resize and vsync issues in Mac Viewer
2019-05-21 robertphillips@google.com Make GrGLGpu::createBackendTexture parallel GrGLGpu::createTextureImpl
2019-05-22 halcanary@google.com VkTestUtils: respect new optional SK_GPU_TOOLS_VK_LIBRARY_NAME define
2019-05-22 jvanverth@google.com ARC cleanup and memory leak fix.
2019-05-21 mtklein@google.com use float -> float math functions
2019-05-22 zhenyu.shan@intel.com Add AVX2 implementation for blit_row_s32a_opaque
2019-05-21 jcgregorio@google.com Add Huawei P30 to the tree.
2019-05-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 e8247a5..fb8e1b2 (6 commits)
2019-05-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 09fbfa7a6919..aacbdfe80aea (446 commits)
2019-05-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 9e2844f..f4d2a44 (2 commits)
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-21 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-05-21 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 (csmartdalton@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': 'e63b01b364a0e86668ff4c4508b725b2e6752c00',
+  'skia_revision': 'f77dbd04b92645d0f62d645210c449b5cac9b484',
 
   # 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: 86e8504ad0700adfecdedff7e4a900f6
+Signature: 2adf195fe1b3fd5e206ecc4ffa6891bb
 
 UNUSED LICENSES:
 
@@ -5343,7 +5343,9 @@ FILE: ../../../third_party/skia/experimental/ffmpeg/SkVideoDecoder.cpp
 FILE: ../../../third_party/skia/experimental/ffmpeg/SkVideoDecoder.h
 FILE: ../../../third_party/skia/gm/backdrop.cpp
 FILE: ../../../third_party/skia/gm/backdrop_imagefilter_croprect.cpp
+FILE: ../../../third_party/skia/gm/collapsepaths.cpp
 FILE: ../../../third_party/skia/gm/compositor_quads.cpp
+FILE: ../../../third_party/skia/gm/crbug_913349.cpp
 FILE: ../../../third_party/skia/gm/crbug_938592.cpp
 FILE: ../../../third_party/skia/gm/crbug_947055.cpp
 FILE: ../../../third_party/skia/gm/mac_aa_explorer.cpp