Revert of Delete base/prefs and update callers to use components.

ios/chrome/browser/application_context_impl.cc

 // 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.
 
 #include "ios/chrome/browser/application_context_impl.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/path_service.h"
+#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/pref_service.h"
 #include "base/time/default_tick_clock.h"
 #include "base/tracked_objects.h"
 #include "components/component_updater/component_updater_service.h"
 #include "components/component_updater/component_updater_service.h"
 #include "components/gcm_driver/gcm_client_factory.h"
 #include "components/gcm_driver/gcm_desktop_utils.h"
 #include "components/gcm_driver/gcm_driver.h"
 #include "components/history/core/browser/history_service.h"
 #include "components/keyed_service/core/service_access_type.h"
 #include "components/metrics/metrics_pref_names.h"
 #include "components/metrics/metrics_service.h"
 #include "components/metrics_services_manager/metrics_services_manager.h"
 #include "components/net_log/chrome_net_log.h"
 #include "components/network_time/network_time_tracker.h"
-#include "components/prefs/pref_registry_simple.h"
-#include "components/prefs/pref_service.h"
 #include "components/translate/core/browser/translate_download_manager.h"
 #include "components/update_client/configurator.h"
 #include "components/update_client/update_query_params.h"
 #include "components/variations/service/variations_service.h"
 #include "components/web_resource/promo_resource_service.h"
 #include "components/web_resource/web_resource_pref_names.h"
 #include "ios/chrome/browser/chrome_paths.h"
 #include "ios/chrome/browser/chrome_switches.h"
 #include "ios/chrome/browser/component_updater/ios_component_updater_configurator.h"
 #include "ios/chrome/browser/history/history_service_factory.h"
@@ skipping 344 matching lines @@
           worker_pool->GetSequenceToken(),
           base::SequencedWorkerPool::SKIP_ON_SHUTDOWN));
 
   gcm_driver_ = gcm::CreateGCMDriverDesktop(
       make_scoped_ptr(new gcm::GCMClientFactory), GetLocalState(), store_path,
       GetSystemURLRequestContext(), ::GetChannel(),
       web::WebThread::GetTaskRunnerForThread(web::WebThread::UI),
       web::WebThread::GetTaskRunnerForThread(web::WebThread::IO),
       blocking_task_runner);
 }