Roll src/third_party/skia a2a0c8a2c475..24ed75db12ba (12 commits) (#16216)

https://skia.googlesource.com/skia.git/+log/a2a0c8a2c475..24ed75db12ba

git log a2a0c8a2c475..24ed75db12ba --date=short --first-parent --format='%ad %ae %s'
2020-01-29 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2020-01-29 nifong@google.com Return summaries of all layers for display
2020-01-29 egdaniel@google.com Use views throughout gpu blur code.
2020-01-29 kjlubick@google.com [canvaskit] Add demo for RT shader
2020-01-29 csmartdalton@google.com Add a "kSimpleInnerPolygons" mode to GrTessellator
2020-01-29 fmalita@chromium.org [skottie] Cleanup: convert shape stroke/fill to new adapter pattern
2020-01-29 bsalomon@google.com Check for valid stencil buffer in GrGLGpu::clearStencilClip
2020-01-29 bsalomon@google.com Make cache RRect blur masks with exact fit textures.
2020-01-29 reed@google.com tweak textbox to use subpixel
2020-01-29 csmartdalton@google.com Preserve triangle winding in GrTessellator
2020-01-29 jlavrova@google.com Memory leak in cache
2020-01-29 egdaniel@google.com Remove asTextureProxyRef from SkSpecialImage.

Created with:
  gclient setdep -r src/third_party/skia@24ed75db12ba

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC reed@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Bug: None
Tbr: reed@google.com

DEPS

@@ -26,7 +26,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': 'a2a0c8a2c47519fea570c0179d90373c3230346d',
+  'skia_revision': '24ed75db12ba8bcdfb75a6794093e68cab4c4270',
 
   # 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: 1ec037488511721f0589c3b1da312165
+Signature: e67d53f8b5b038f4ec9086043b583f75
 
 UNUSED LICENSES:
 
@@ -5616,6 +5616,7 @@ FILE: ../../../third_party/skia/modules/skottie/src/Camera.h
 FILE: ../../../third_party/skia/modules/skottie/src/Transform.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/Transform.h
 FILE: ../../../third_party/skia/modules/skottie/src/layers/shapelayer/Ellipse.cpp
+FILE: ../../../third_party/skia/modules/skottie/src/layers/shapelayer/FillStroke.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/layers/shapelayer/Gradient.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/layers/shapelayer/MergePaths.cpp
 FILE: ../../../third_party/skia/modules/skottie/src/layers/shapelayer/Polystar.cpp