[Mac/GN] Set up the component build.

components/policy/core/common/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/features.gni")
 
 source_set("common") {
   visibility = [
     "//components/policy/*",
     "//components/syncable_prefs/*",
@@ skipping 171 matching lines @@
       ]
       sources -= [
         "cloud/cloud_policy_client_registration_helper.cc",
         "cloud/cloud_policy_client_registration_helper.h",
         "cloud/user_cloud_policy_manager.cc",
         "cloud/user_cloud_policy_manager.h",
         "cloud/user_cloud_policy_store.cc",
         "cloud/user_cloud_policy_store.h",
       ]
     }
+    if (is_mac) {
+      libs = [ "CoreFoundation.framework" ]
+    }
     if (!is_ios && !is_mac) {
       sources -= [
         "mac_util.cc",
         "mac_util.h",
       ]
     }
   } else {
     # Some of the policy code is always enabled, so that other parts of Chrome
     # can always interface with the PolicyService without having to #ifdef on
     # ENABLE_CONFIGURATION_POLICY.
@@ skipping 97 matching lines @@
       "//components/policy:policy_component_test_support",
       "//components/prefs:test_support",
       "//components/prefs:test_support",
       "//google_apis",
       "//net:test_support",
       "//testing/gmock",
       "//testing/gtest",
     ]
   }
 }