Remove profile-keyed factory boilerplates.

chrome/browser/extensions/api/bookmarks/bookmark_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_BOOKMARKS_BOOKMARK_API_FACTORY_H_
-#define CHROME_BROWSER_EXTENSIONS_API_BOOKMARKS_BOOKMARK_API_FACTORY_H_
-
-#include "base/memory/singleton.h"
-#include "chrome/browser/profiles/profile_keyed_service_factory.h"
-
-namespace extensions {
-class BookmarkAPI;
-
-class BookmarkAPIFactory : public ProfileKeyedServiceFactory {
- public:
-  static BookmarkAPI* GetForProfile(Profile* profile);
-
-  static BookmarkAPIFactory* GetInstance();
-
- private:
-  friend struct DefaultSingletonTraits<BookmarkAPIFactory>;
-
-  BookmarkAPIFactory();
-  virtual ~BookmarkAPIFactory();
-
-  // ProfileKeyedBaseFactory 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_BOOKMARKS_BOOKMARK_API_FACTORY_H_