Move Singleton and related structs to namespace base

chrome/browser/chromeos/login/saml/saml_offline_signin_limiter_factory.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/chromeos/login/saml/saml_offline_signin_limiter_factory.h"
 
 #include "base/time/clock.h"
 #include "chrome/browser/chromeos/login/saml/saml_offline_signin_limiter.h"
 #include "chrome/browser/profiles/profile.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/browser_context.h"
 
 namespace chromeos {
 
 base::Clock* SAMLOfflineSigninLimiterFactory::clock_for_testing_ = NULL;
 
 // static
 SAMLOfflineSigninLimiterFactory*
     SAMLOfflineSigninLimiterFactory::GetInstance() {
-  return Singleton<SAMLOfflineSigninLimiterFactory>::get();
+  return base::Singleton<SAMLOfflineSigninLimiterFactory>::get();
 }
 
 // static
 SAMLOfflineSigninLimiter* SAMLOfflineSigninLimiterFactory::GetForProfile(
     Profile* profile) {
   return static_cast<SAMLOfflineSigninLimiter*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 // static
@@ skipping 10 matching lines @@
 SAMLOfflineSigninLimiterFactory::~SAMLOfflineSigninLimiterFactory() {
 }
 
 KeyedService* SAMLOfflineSigninLimiterFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   return new SAMLOfflineSigninLimiter(static_cast<Profile*>(context),
                                       clock_for_testing_);
 }
 
 }  // namespace chromeos