Move Singleton and related structs to namespace base

chrome/browser/policy/cloud/user_cloud_policy_manager_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/policy/cloud/user_cloud_policy_manager_factory.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/sequenced_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 36 matching lines @@
   UserCloudPolicyManager* manager() { return manager_; }
 
  private:
   UserCloudPolicyManager* manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ManagerWrapper);
 };
 
 // static
 UserCloudPolicyManagerFactory* UserCloudPolicyManagerFactory::GetInstance() {
-  return Singleton<UserCloudPolicyManagerFactory>::get();
+  return base::Singleton<UserCloudPolicyManagerFactory>::get();
 }
 
 // static
 UserCloudPolicyManager* UserCloudPolicyManagerFactory::GetForBrowserContext(
     content::BrowserContext* context) {
   return GetInstance()->GetManagerForBrowserContext(context);
 }
 
 // static
 scoped_ptr<UserCloudPolicyManager>
@@ skipping 142 matching lines @@
   return testing_factory_ != NULL;
 }
 
 void UserCloudPolicyManagerFactory::CreateServiceNow(
     content::BrowserContext* context) {
   DCHECK(testing_factory_);
   manager_wrappers_[context] = new ManagerWrapper(testing_factory_(context));
 }
 
 }  // namespace policy