Roll src/third_party/skia 14538ddf874e..6c56055f65fc (5 commits) (#5576)

Auto-roller completed checks. Merging.

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': '14538ddf874e1a146487dad02709929c4b63baf5',
+  'skia_revision': '6c56055f65fc5a64a6124929f6313892cea18fe0',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

travis/licenses_golden/licenses_third_party

-Signature: 1570c26fb3ac06244ab79c9de27df68a
+Signature: 4496b02fa0d9cc770662ab523b6bcf2e
 
 UNUSED LICENSES:
 
@@ -17375,6 +17375,8 @@ FILE: ../../../third_party/skia/src/gpu/text/GrSDFMaskFilter.h
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkAMDMemoryAllocator.cpp
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkAMDMemoryAllocator.h
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkImageLayout.h
+FILE: ../../../third_party/skia/src/gpu/vk/GrVkPipelineLayout.cpp
+FILE: ../../../third_party/skia/src/gpu/vk/GrVkPipelineLayout.h
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkTypesPriv.cpp
 FILE: ../../../third_party/skia/src/opts/SkOpts_hsw.cpp
 FILE: ../../../third_party/skia/src/opts/SkRasterPipeline_opts.h