Roll src/third_party/skia dc19391eef52..70aab823547a (8 commits) (#8836)

https://skia.googlesource.com/skia.git
/%2Blog/dc19391eef52..70aab823547a

git log dc19391eef526cee90fcc2391fb0404c05702498..70aab823547a75a0d5eb0616f79a50691047d82c --date=short --no-merges --format=%ad %ae %s
2019-05-03 halcanary@google.com Shaper Tests: fix g3 build
2019-05-03 ethannicholas@google.com SkSL interpreter optimizations
2019-05-03 halcanary@google.com Shaper Tests: make a macro, rename test resources.
2019-05-03 halcanary@google.com SkColors: Fix new color constants
2019-05-03 fmalita@chromium.org [skottie] Relocate "GMs" to resources/
2019-04-22 herb@google.com Reland "SkShaper JSON output with cluster visualization"
2019-05-03 jvanverth@google.com Move GrMtlBufferManager functionality to better places
2019-05-02 halcanary@google.com Shaper : new unit test

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 (ethannicholas@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': 'dc19391eef526cee90fcc2391fb0404c05702498',
+  'skia_revision': '70aab823547a75a0d5eb0616f79a50691047d82c',
 
   # 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: 0596bbe39e5f53efb086eec8502b1865
+Signature: 4147c76fdde1ec4babb2a742395a8dd6
 
 UNUSED LICENSES:
 
@@ -5634,6 +5634,8 @@ FILE: ../../../third_party/skia/src/sksl/SkSLDefines.h
 FILE: ../../../third_party/skia/src/sksl/SkSLOutputStream.cpp
 FILE: ../../../third_party/skia/src/utils/SkCharToGlyphCache.cpp
 FILE: ../../../third_party/skia/src/utils/SkCharToGlyphCache.h
+FILE: ../../../third_party/skia/src/utils/SkShaperJSONWriter.cpp
+FILE: ../../../third_party/skia/src/utils/SkShaperJSONWriter.h
 ----------------------------------------------------------------------------------------------------
 Copyright 2019 Google Inc.