Move Singleton and related structs to namespace base

chrome/browser/extensions/extension_management.cc

 // Copyright 2014 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/extension_management.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 448 matching lines @@
   return it->second;
 }
 
 ExtensionManagement* ExtensionManagementFactory::GetForBrowserContext(
     content::BrowserContext* context) {
   return static_cast<ExtensionManagement*>(
       GetInstance()->GetServiceForBrowserContext(context, true));
 }
 
 ExtensionManagementFactory* ExtensionManagementFactory::GetInstance() {
-  return Singleton<ExtensionManagementFactory>::get();
+  return base::Singleton<ExtensionManagementFactory>::get();
 }
 
 ExtensionManagementFactory::ExtensionManagementFactory()
     : BrowserContextKeyedServiceFactory(
           "ExtensionManagement",
           BrowserContextDependencyManager::GetInstance()) {
 }
 
 ExtensionManagementFactory::~ExtensionManagementFactory() {
 }
@@ skipping 10 matching lines @@
     content::BrowserContext* context) const {
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }
 
 void ExtensionManagementFactory::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* user_prefs) {
   user_prefs->RegisterDictionaryPref(pref_names::kExtensionManagement);
 }
 
 }  // namespace extensions