[Mac/GN] Set up the component build.

ui/accessibility/BUILD.gn

 # Copyright 2014 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/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//build/json_schema_api.gni")
 import("//testing/test.gni")
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ skipping 68 matching lines @@
     "//base:i18n",
     "//ui/base",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 
   if (is_win) {
     public_deps += [ "//third_party/iaccessible2" ]
   }
 
+  if (is_mac) {
+    libs = [
+      "AppKit.framework",
+      "Foundation.framework",
+    ]
+  }
+
   if (use_atk) {
     sources += [
       "platform/atk_util_auralinux.cc",
       "platform/atk_util_auralinux.h",
       "platform/ax_platform_node_auralinux.cc",
       "platform/ax_platform_node_auralinux.h",
     ]
 
     configs += [
       ":atk",
@@ skipping 60 matching lines @@
 json_schema_api("ax_gen") {
   sources = [
     "ax_enums.idl",
   ]
   deps = [
     "//base/third_party/dynamic_annotations",
   ]
   root_namespace = "ui"
   schemas = true
 }