Roll Skia from a5ced794731b to 1adcac52d64b (6 revisions) (#18740)

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': 'a5ced794731b4a8724332321e0b59611044d2a1c',
+  'skia_revision': '1adcac52d64b6ecabf1f9ffe21934c13abc94f4e',
 
   # 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: aae2183e367be7a150e60f8d68023dd0
+Signature: f0d2a46f6529a210fd1738a57476bac8
 
 UNUSED LICENSES:
 
@@ -3912,6 +3912,7 @@ FILE: ../../../third_party/skia/bench/GrQuadBench.cpp
 FILE: ../../../third_party/skia/experimental/skottiekit/skottiekit_bindings.cpp
 FILE: ../../../third_party/skia/gm/crbug_1041204.cpp
 FILE: ../../../third_party/skia/gm/crbug_224618.cpp
+FILE: ../../../third_party/skia/gm/encode_color_types.cpp
 FILE: ../../../third_party/skia/gm/userfont.cpp
 FILE: ../../../third_party/skia/include/gpu/GrBackendSurfaceMutableState.h
 FILE: ../../../third_party/skia/include/gpu/d3d/GrD3DBackendContext.h