Extract AD policy scheduler into separate class

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")
 import("//testing/libfuzzer/fuzzer_test.gni")
 
 group("common") {
   if (is_component_build) {
     public_deps = [
@@ skipping 139 matching lines @@
     "//url",
   ]
 
   if (is_win) {
     libs = [
       "shlwapi.lib",
       "userenv.lib",
       "ntdsapi.lib",
     ]
   }
+
   # Compile on Linux for fuzzer and since code is reused on Chrome OS.
   if (is_win || is_linux) {
     sources += [
       "preg_parser.cc",
       "preg_parser.h",
       "registry_dict.cc",
       "registry_dict.h",
     ]
   }
   if (is_android) {
@@ skipping 11 matching lines @@
       "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) {
     sources += [
+      "policy_scheduler.cc",
+      "policy_scheduler.h",
       "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",
       "cloud/user_cloud_policy_store.h",
@@ skipping 81 matching lines @@
     "cloud/device_management_service_unittest.cc",
     "cloud/policy_header_io_helper_unittest.cc",
     "cloud/policy_header_service_unittest.cc",
     "cloud/user_info_fetcher_unittest.cc",
     "generate_policy_source_unittest.cc",
     "policy_bundle_unittest.cc",
     "policy_loader_ios_unittest.mm",
     "policy_loader_mac_unittest.cc",
     "policy_loader_win_unittest.cc",
     "policy_map_unittest.cc",
+    "policy_scheduler_unittest.cc",
     "policy_service_impl_unittest.cc",
     "policy_statistics_collector_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_win || is_linux) {
@@ skipping 54 matching lines @@
       "preg_parser_fuzzer.cc",
     ]
     seed_corpus = "//chrome/test/data/policy/gpo/fuzzer_corpus"
     dict = "//chrome/test/data/policy/gpo/fuzzer.dict"
     deps = [
       ":internal",
       "//base",
     ]
   }
 }