Move Singleton and related structs to namespace base

chrome/browser/google/google_url_tracker_factory.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/google/google_url_tracker_factory.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/google/chrome_google_url_tracker_client.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
 #include "components/google/core/browser/google_pref_names.h"
 #include "components/google/core/browser/google_url_tracker.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 
 // static
 GoogleURLTracker* GoogleURLTrackerFactory::GetForProfile(Profile* profile) {
   return static_cast<GoogleURLTracker*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 // static
 GoogleURLTrackerFactory* GoogleURLTrackerFactory::GetInstance() {
-  return Singleton<GoogleURLTrackerFactory>::get();
+  return base::Singleton<GoogleURLTrackerFactory>::get();
 }
 
 GoogleURLTrackerFactory::GoogleURLTrackerFactory()
     : BrowserContextKeyedServiceFactory(
         "GoogleURLTracker",
         BrowserContextDependencyManager::GetInstance()) {
 }
 
 GoogleURLTrackerFactory::~GoogleURLTrackerFactory() {
 }
@@ skipping 20 matching lines @@
   return chrome::GetBrowserContextRedirectedInIncognito(context);
 }
 
 bool GoogleURLTrackerFactory::ServiceIsCreatedWithBrowserContext() const {
   return true;
 }
 
 bool GoogleURLTrackerFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }