GN: chromeos: Add missing components tests

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 234 matching lines @@
       "policy_statistics_collector_unittest.cc",
       "preg_parser_win_unittest.cc",
       "registry_dict_win_unittest.cc",
       "remote_commands/remote_commands_queue_unittest.cc",
       "remote_commands/remote_commands_service_unittest.cc",
       "schema_map_unittest.cc",
       "schema_registry_tracking_policy_provider_unittest.cc",
       "schema_registry_unittest.cc",
       "schema_unittest.cc",
     ]
-    if (!is_chromeos) {
+    if (is_chromeos) {
+      sources += [ "proxy_policy_provider_unittest.cc" ]
+    } else {
       sources += [
         "cloud/user_cloud_policy_manager_unittest.cc",
         "cloud/user_cloud_policy_store_unittest.cc",
       ]
     }
     if (!is_android) {
       sources += [ "async_policy_provider_unittest.cc" ]
     }
     if (!is_android && !is_ios) {
       sources += [
@@ skipping 24 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",
     ]
   }
 }