Move Singleton and related structs to namespace base

chrome/browser/bookmarks/managed_bookmark_service_factory.cc

 // 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 "chrome/browser/bookmarks/managed_bookmark_service_factory.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
@@ skipping 27 matching lines @@
 
 // static
 bookmarks::ManagedBookmarkService* ManagedBookmarkServiceFactory::GetForProfile(
     Profile* profile) {
   return static_cast<bookmarks::ManagedBookmarkService*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 // static
 ManagedBookmarkServiceFactory* ManagedBookmarkServiceFactory::GetInstance() {
-  return Singleton<ManagedBookmarkServiceFactory>::get();
+  return base::Singleton<ManagedBookmarkServiceFactory>::get();
 }
 
 // static
 BrowserContextKeyedServiceFactory::TestingFactoryFunction
 ManagedBookmarkServiceFactory::GetDefaultFactory() {
   return &BuildManagedBookmarkService;
 }
 
 ManagedBookmarkServiceFactory::ManagedBookmarkServiceFactory()
     : BrowserContextKeyedServiceFactory(
@@ skipping 10 matching lines @@
 }
 
 content::BrowserContext* ManagedBookmarkServiceFactory::GetBrowserContextToUse(
     content::BrowserContext* context) const {
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }
 
 bool ManagedBookmarkServiceFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }