Move Singleton and related structs to namespace base

chrome/browser/policy/schema_registry_service_factory.h

 // Copyright 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_POLICY_SCHEMA_REGISTRY_SERVICE_FACTORY_H_
 #define CHROME_BROWSER_POLICY_SCHEMA_REGISTRY_SERVICE_FACTORY_H_
 
 #include <map>
 
 #include "base/compiler_specific.h"
@@ skipping 27 matching lines @@
 
   // Creates a new SchemaRegistryService for |context|, which must be managed
   // by the caller. Subsequent calls to GetForContext() will return the instance
   // created, as long as it lives.
   static scoped_ptr<SchemaRegistryService> CreateForContext(
       content::BrowserContext* context,
       const Schema& chrome_schema,
       CombinedSchemaRegistry* global_registry);
 
  private:
-  friend struct DefaultSingletonTraits<SchemaRegistryServiceFactory>;
+  friend struct base::DefaultSingletonTraits<SchemaRegistryServiceFactory>;
 
   SchemaRegistryServiceFactory();
   ~SchemaRegistryServiceFactory() override;
 
   SchemaRegistryService* GetForContextInternal(
       content::BrowserContext* context);
 
   scoped_ptr<SchemaRegistryService> CreateForContextInternal(
       content::BrowserContext* context,
       const Schema& chrome_schema,
       CombinedSchemaRegistry* global_registry);
 
   // 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<content::BrowserContext*, SchemaRegistryService*>
       RegistryMap;
   RegistryMap registries_;
 
   DISALLOW_COPY_AND_ASSIGN(SchemaRegistryServiceFactory);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_SCHEMA_REGISTRY_SERVICE_FACTORY_H_