Rename is_chromeos in chrome/src.

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/*" ]
 
   defines = [ "POLICY_COMPONENT_IMPLEMENTATION" ]
@@ skipping 145 matching lines @@
         "cloud/external_policy_data_updater.cc",
         "cloud/external_policy_data_updater.h",
         "cloud/resource_cache.cc",
         "cloud/resource_cache.h",
         "config_dir_policy_loader.cc",
         "config_dir_policy_loader.h",
         "policy_load_status.cc",
         "policy_load_status.h",
       ]
     }
-    if (is_chromeos) {
+    if (use_cros_fe) {
       sources += [
         "proxy_policy_provider.cc",
         "proxy_policy_provider.h",
       ]
       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",
@@ skipping 23 matching lines @@
       "policy_service.cc",
       "policy_service.h",
       "policy_service_stub.cc",
       "policy_service_stub.h",
     ]
     deps = [
       "//base",
     ]
   }
 }