Move Singleton and related structs to namespace base

chrome/browser/android/logo_service.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/android/logo_service.h"
 
 #include "base/memory/weak_ptr.h"
 #include "base/thread_task_runner_handle.h"
 #include "chrome/browser/image_decoder.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 121 matching lines @@
 // LogoServiceFactory ---------------------------------------------------------
 
 // static
 LogoService* LogoServiceFactory::GetForProfile(Profile* profile) {
   return static_cast<LogoService*>(
       GetInstance()->GetServiceForBrowserContext(profile, true));
 }
 
 // static
 LogoServiceFactory* LogoServiceFactory::GetInstance() {
-  return Singleton<LogoServiceFactory>::get();
+  return base::Singleton<LogoServiceFactory>::get();
 }
 
 LogoServiceFactory::LogoServiceFactory()
     : BrowserContextKeyedServiceFactory(
           "LogoService",
           BrowserContextDependencyManager::GetInstance()) {
 }
 
 LogoServiceFactory::~LogoServiceFactory() {}
 
 KeyedService* LogoServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   Profile* profile = static_cast<Profile*>(context);
   DCHECK(!profile->IsOffTheRecord());
   return new LogoService(profile);
 }