Implement sk_sp<SkImageFilter> StructTraits

skia/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 if (current_cpu == "arm") {
   import("//build/config/arm.gni")
 }
 if (current_cpu == "mipsel" || current_cpu == "mips64el") {
   import("//build/config/mips.gni")
 }
 
 skia_support_gpu = !is_ios
 skia_support_pdf = !is_ios && (enable_basic_printing || enable_print_preview)
 
 # When building Chrome for iOS with GYP, the target cpu is not known during
 # the invocation of gyp. This cause the iOS build to use non-optimised skia.
 # Replicate this with GN to avoid introducing regression as recommended by
 # the OWNERS of skia.
 
 declare_args() {
   skia_whitelist_serialized_typefaces = false
+
   # TODO(crbug.com/607933): Once GYP is no longer supported, port iOS to use
   # optimised skia.
   skia_build_no_opts = is_ios
 }
 
 # The list of Skia defines that are to be set for chromium.
 gypi_chromium_skia_defines =
     exec_script("//build/gypi_to_gn.py",
                 [
                   rebase_path("//skia/chromium_skia_defines.gypi"),
@@ skipping 679 matching lines @@
     "ext/skia_utils_mac_unittest.mm",
   ]
 
   if (!is_win && !is_mac) {
     sources -= [ "ext/platform_canvas_unittest.cc" ]
   }
 
   deps = [
     ":skia",
     "//base",
-    "//base/test:run_all_unittests",
+    "//mojo/edk/test:run_all_unittests",
     "//testing/gtest",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 
   if (!is_ios) {
-    deps += [ "//cc:test_support" ]  # TODO: Fix this test to not depend on cc.
+    sources += [ "public/interfaces/test/struct_traits_unittest.cc" ]
+    deps += [
+      # TODO: Fix this test to not depend on cc.
+      "//cc:test_support",
+      "//mojo/edk/system",
+      "//mojo/public/cpp/bindings",
+      "//skia/public/interfaces:test_interfaces",
+    ]
   }
 }
 
 if (!is_ios) {
   executable("image_operations_bench") {
     sources = [
       "ext/image_operations_bench.cc",
     ]
 
     deps = [
@@ skipping 12 matching lines @@
 
     deps = [
       ":skia",
       "//base",
       "//base/test:test_support",
       "//build/config/sanitizers:deps",
       "//build/win:default_exe_manifest",
     ]
   }
 }