Move Singleton and related structs to namespace base

chrome/browser/chromeos/policy/user_cloud_policy_manager_factory_chromeos.h

 // Copyright (c) 2013 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_
 #define CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 44 matching lines @@
   // will return the created instance as long as it lives.
   //
   // If |force_immediate_load| is true, policy is loaded synchronously from
   // UserCloudPolicyStore at startup.
   static scoped_ptr<UserCloudPolicyManagerChromeOS> CreateForProfile(
       Profile* profile,
       bool force_immediate_load,
       scoped_refptr<base::SequencedTaskRunner> background_task_runner);
 
  private:
-  friend struct DefaultSingletonTraits<UserCloudPolicyManagerFactoryChromeOS>;
+  friend struct base::DefaultSingletonTraits<
+      UserCloudPolicyManagerFactoryChromeOS>;
 
   UserCloudPolicyManagerFactoryChromeOS();
   ~UserCloudPolicyManagerFactoryChromeOS() override;
 
   // See comments for the static versions above.
   UserCloudPolicyManagerChromeOS* GetManagerForProfile(Profile* profile);
   scoped_ptr<UserCloudPolicyManagerChromeOS> CreateManagerForProfile(
       Profile* profile,
       bool force_immediate_load,
       scoped_refptr<base::SequencedTaskRunner> background_task_runner);
 
   // BrowserContextKeyedBaseFactory:
   void BrowserContextShutdown(content::BrowserContext* context) override;
   void BrowserContextDestroyed(content::BrowserContext* context) override;
   void SetEmptyTestingFactory(content::BrowserContext* context) override;
   bool HasTestingFactory(content::BrowserContext* context) override;
   void CreateServiceNow(content::BrowserContext* context) override;
 
   typedef std::map<Profile*, UserCloudPolicyManagerChromeOS*> ManagerMap;
   ManagerMap managers_;
 
   DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManagerFactoryChromeOS);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_CHROMEOS_POLICY_USER_CLOUD_POLICY_MANAGER_FACTORY_CHROMEOS_H_