Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/content_settings/cookie_settings.cc

 // Copyright (c) 2012 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 "chrome/browser/content_settings/cookie_settings.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/content_settings/content_settings_utils.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
+#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/content_settings_pattern.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
@@ skipping 38 matching lines @@
 
 CookieSettings::Factory::Factory()
     : RefcountedProfileKeyedServiceFactory(
         "CookieSettings",
         ProfileDependencyManager::GetInstance()) {
 }
 
 CookieSettings::Factory::~Factory() {}
 
 void CookieSettings::Factory::RegisterUserPrefs(
-    PrefServiceSyncable* user_prefs) {
-  user_prefs->RegisterBooleanPref(prefs::kBlockThirdPartyCookies,
-                                  false,
-                                  PrefServiceSyncable::SYNCABLE_PREF);
+    PrefRegistrySyncable* registry) {
+  registry->RegisterBooleanPref(prefs::kBlockThirdPartyCookies,
+                                false,
+                                PrefRegistrySyncable::SYNCABLE_PREF);
 }
 
 bool CookieSettings::Factory::ServiceRedirectedInIncognito() const {
   return true;
 }
 
 scoped_refptr<RefcountedProfileKeyedService>
 CookieSettings::Factory::BuildServiceInstanceFor(Profile* profile) const {
   return new CookieSettings(profile->GetHostContentSettingsMap(),
                             profile->GetPrefs());
@@ skipping 132 matching lines @@
 
   base::AutoLock auto_lock(lock_);
   block_third_party_cookies_ = pref_change_registrar_.prefs()->GetBoolean(
       prefs::kBlockThirdPartyCookies);
 }
 
 bool CookieSettings::ShouldBlockThirdPartyCookies() const {
   base::AutoLock auto_lock(lock_);
   return block_third_party_cookies_;
 }