Implements CR deduplication for iOS.

ios/chrome/browser/prefs/browser_prefs.mm

 // Copyright 2015 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/prefs/browser_prefs.h"
 
 #include "components/autofill/core/browser/autofill_manager.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/dom_distiller/core/distilled_page_prefs.h"
 #include "components/flags_ui/pref_service_flags_storage.h"
 #include "components/gcm_driver/gcm_channel_status_syncer.h"
 #include "components/network_time/network_time_tracker.h"
 #include "components/ntp_snippets/ntp_snippets_service.h"
 #include "components/omnibox/browser/zero_suggest_provider.h"
 #include "components/password_manager/core/browser/password_manager.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/pref_service.h"
 #include "components/proxy_config/pref_proxy_config_tracker_impl.h"
 #include "components/rappor/rappor_service.h"
 #include "components/search_engines/template_url_prepopulate_data.h"
 #include "components/signin/core/common/signin_pref_names.h"
 #include "components/ssl_config/ssl_config_service_manager.h"
 #include "components/strings/grit/components_locale_settings.h"
 #include "components/sync_driver/sync_prefs.h"
 #include "components/translate/core/browser/translate_prefs.h"
 #include "components/translate/core/common/translate_pref_names.h"
+#include "components/update_client/update_client.h"
 #include "components/variations/service/variations_service.h"
 #include "components/web_resource/promo_resource_service.h"
 #include "ios/chrome/browser/application_context_impl.h"
 #include "ios/chrome/browser/browser_state/browser_state_info_cache.h"
 #include "ios/chrome/browser/first_run/first_run.h"
 #import "ios/chrome/browser/geolocation/omnibox_geolocation_local_state.h"
 #import "ios/chrome/browser/memory/memory_debugger_manager.h"
 #import "ios/chrome/browser/metrics/ios_chrome_metrics_service_client.h"
 #include "ios/chrome/browser/net/http_server_properties_manager_factory.h"
 #include "ios/chrome/browser/pref_names.h"
@@ skipping 14 matching lines @@
 void RegisterLocalStatePrefs(PrefRegistrySimple* registry) {
   BrowserStateInfoCache::RegisterPrefs(registry);
   flags_ui::PrefServiceFlagsStorage::RegisterPrefs(registry);
   gcm::GCMChannelStatusSyncer::RegisterPrefs(registry);
   ios::SigninManagerFactory::RegisterPrefs(registry);
   IOSChromeMetricsServiceClient::RegisterPrefs(registry);
   network_time::NetworkTimeTracker::RegisterPrefs(registry);
   PrefProxyConfigTrackerImpl::RegisterPrefs(registry);
   rappor::RapporService::RegisterPrefs(registry);
   ssl_config::SSLConfigServiceManager::RegisterPrefs(registry);
+  update_client::RegisterPrefs(registry);
   variations::VariationsService::RegisterPrefs(registry);
   web_resource::PromoResourceService::RegisterPrefs(registry);
 
   // Preferences related to the browser state manager.
   registry->RegisterStringPref(prefs::kBrowserStateLastUsed, std::string());
   registry->RegisterIntegerPref(prefs::kBrowserStatesNumCreated, 1);
   registry->RegisterListPref(prefs::kBrowserStatesLastActive);
 
   [OmniboxGeolocationLocalState registerLocalState:registry];
   [MemoryDebuggerManager registerLocalState:registry];
@@ skipping 71 matching lines @@
 void MigrateObsoleteLocalStatePrefs(PrefService* prefs) {}
 
 // This method should be periodically pruned of year+ old migrations.
 void MigrateObsoleteBrowserStatePrefs(PrefService* prefs) {
   // Added 07/2014.
   translate::TranslatePrefs::MigrateUserPrefs(prefs, prefs::kAcceptLanguages);
 
   // Added 08/2015.
   prefs->ClearPref(::prefs::kSigninSharedAuthenticationUserId);
 }