Move Singleton and related structs to namespace base

chrome/browser/ui/app_list/app_list_syncable_service_factory.cc

 // Copyright 2013 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/ui/app_list/app_list_syncable_service_factory.h"
 
 #include <set>
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/apps/drive/drive_app_provider.h"
@@ skipping 13 matching lines @@
 
 // static
 AppListSyncableService* AppListSyncableServiceFactory::GetForProfile(
     Profile* profile) {
   return static_cast<AppListSyncableService*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 // static
 AppListSyncableServiceFactory* AppListSyncableServiceFactory::GetInstance() {
-  return Singleton<AppListSyncableServiceFactory>::get();
+  return base::Singleton<AppListSyncableServiceFactory>::get();
 }
 
 // static
 scoped_ptr<KeyedService> AppListSyncableServiceFactory::BuildInstanceFor(
     content::BrowserContext* browser_context) {
   Profile* profile = static_cast<Profile*>(browser_context);
 #if defined(OS_CHROMEOS)
   if (chromeos::ProfileHelper::IsSigninProfile(profile))
     return NULL;
 #endif
@@ skipping 43 matching lines @@
   // Start AppListSyncableService early so that the app list positions are
   // available before the app list is opened.
   return true;
 }
 
 bool AppListSyncableServiceFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }
 
 }  // namespace app_list