Roll Skia to a184ac7e0cdb26919369151f606c194358c94ff5 (#4000)

DEPS

@@ -22,7 +22,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'github_git': 'https://github.com',
-  'skia_revision': '141df44fd82b5d9223025a5daa463fcf22d8416f',
+  'skia_revision': 'a184ac7e0cdb26919369151f606c194358c94ff5',
 
   # 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: d4bdc7ffb0097caf9a722e8697a21850
+Signature: 872673c84783803f34679906f1bc969e
 
 UNUSED LICENSES:
 
@@ -26892,8 +26892,6 @@ FILE: ../../../third_party/skia/src/gpu/ops/GrSemaphoreOp.h
 FILE: ../../../third_party/skia/src/gpu/ops/GrSimpleMeshDrawOpHelper.cpp
 FILE: ../../../third_party/skia/src/gpu/ops/GrSimpleMeshDrawOpHelper.h
 FILE: ../../../third_party/skia/src/gpu/ops/GrStencilPathOp.cpp
-FILE: ../../../third_party/skia/src/gpu/ops/GrTextureOp.cpp
-FILE: ../../../third_party/skia/src/gpu/ops/GrTextureOp.h
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkBufferView.cpp
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkBufferView.h
 FILE: ../../../third_party/skia/src/gpu/vk/GrVkSemaphore.cpp