Banish boilerplate. Profile-keyed API factory for extension API classes.

chrome/browser/extensions/api/tabs/tabs_windows_api_factory.h

-// 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.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_WINDOWS_API_FACTORY_H_
-#define CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_WINDOWS_API_FACTORY_H_
-
-#include "base/memory/singleton.h"
-#include "chrome/browser/profiles/profile_keyed_service_factory.h"
-
-namespace extensions {
-class TabsWindowsAPI;
-
-class TabsWindowsAPIFactory : public ProfileKeyedServiceFactory {
- public:
-  static TabsWindowsAPI* GetForProfile(Profile* profile);
-
-  static TabsWindowsAPIFactory* GetInstance();
-
- private:
-  friend struct DefaultSingletonTraits<TabsWindowsAPIFactory>;
-
-  TabsWindowsAPIFactory();
-  virtual ~TabsWindowsAPIFactory();
-
-  // ProfileKeyedServiceFactory implementation.
-  virtual ProfileKeyedService* BuildServiceInstanceFor(
-      Profile* profile) const OVERRIDE;
-  virtual bool ServiceIsCreatedWithProfile() const OVERRIDE;
-  virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_WINDOWS_API_FACTORY_H_