Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/extensions/component_loader.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/extensions/component_loader.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_notifier.h"
 #include "base/prefs/public/pref_change_registrar.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_file_util.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/notification_details.h"
@@ skipping 401 matching lines @@
 void ComponentLoader::UnloadComponent(ComponentExtensionInfo* component) {
   delete component->manifest;
   if (extension_service_->is_ready()) {
     extension_service_->
         UnloadExtension(component->extension_id,
                         extension_misc::UNLOAD_REASON_DISABLE);
   }
 }
 
 // static
-void ComponentLoader::RegisterUserPrefs(PrefServiceSyncable* prefs) {
-  prefs->RegisterStringPref(prefs::kEnterpriseWebStoreURL,
-                            std::string() /* default_value */,
-                            PrefServiceSyncable::UNSYNCABLE_PREF);
-  prefs->RegisterStringPref(prefs::kEnterpriseWebStoreName,
-                            std::string() /* default_value */,
-                            PrefServiceSyncable::UNSYNCABLE_PREF);
+void ComponentLoader::RegisterUserPrefs(PrefRegistrySyncable* registry) {
+  registry->RegisterStringPref(prefs::kEnterpriseWebStoreURL,
+                               std::string() /* default_value */,
+                               PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterStringPref(prefs::kEnterpriseWebStoreName,
+                               std::string() /* default_value */,
+                               PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 }  // namespace extensions