Roll src/third_party/skia 70aab82..8ac78aa (5 commits) (flutter#8838)

https://skia.googlesource.com/skia.git
/%2Blog/70aab823547a..8ac78aa

git log 70aab82..8ac78aa --date=short --no-merges --format=%ad %ae %s
2019-05-03 [email protected] Update the list of Skia dependencies
2019-05-03 [email protected] Fix .bzl skottie_lib_hdrs
2019-05-03 [email protected] Fixes for experimental/go-skia
2019-05-03 [email protected] docs/examples/Colors
2019-05-03 [email protected] Add explicit .bzl sources and headers lists for skottie/sksg

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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': '70aab823547a75a0d5eb0616f79a50691047d82c',
+  'skia_revision': '8ac78aa6df3f5c36794213491295f07f38c9f131',
 
   # 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: 4147c76fdde1ec4babb2a742395a8dd6
+Signature: 0e7774857f902219d918f486d54846b8
 
 UNUSED LICENSES:
 
@@ -4453,6 +4453,7 @@ FILE: ../../../third_party/skia/docs/examples/Color_Type_RGBA_F16.cpp
 FILE: ../../../third_party/skia/docs/examples/Color_Type_RGB_101010.cpp
 FILE: ../../../third_party/skia/docs/examples/Color_Type_RGB_565.cpp
 FILE: ../../../third_party/skia/docs/examples/Color_Type_RGB_888.cpp
+FILE: ../../../third_party/skia/docs/examples/Colors.cpp
 FILE: ../../../third_party/skia/docs/examples/Conic_Weight_a.cpp
 FILE: ../../../third_party/skia/docs/examples/Conic_Weight_b.cpp
 FILE: ../../../third_party/skia/docs/examples/Conic_Weight_c.cpp