Remove profile-keyed factory boilerplates.

chrome/browser/extensions/api/history/history_api_factory.h

Index: chrome/browser/extensions/api/history/history_api_factory.h
diff --git a/chrome/browser/extensions/api/history/history_api_factory.h b/chrome/browser/extensions/api/history/history_api_factory.h
deleted file mode 100644
index 671ea7246da59cc6e6edbce1568b081055e3fac7..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/history/history_api_factory.h
+++ /dev/null
@@ -1,36 +0,0 @@
-// 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_HISTORY_HISTORY_API_FACTORY_H_
-#define CHROME_BROWSER_EXTENSIONS_API_HISTORY_HISTORY_API_FACTORY_H_
-
-#include "base/memory/singleton.h"
-#include "chrome/browser/profiles/profile_keyed_service_factory.h"
-
-namespace extensions {
-
-class HistoryAPI;
-
-class HistoryAPIFactory : public ProfileKeyedServiceFactory {
- public:
-  static HistoryAPI* GetForProfile(Profile* profile);
-
-  static HistoryAPIFactory* GetInstance();
-
- private:
-  friend struct DefaultSingletonTraits<HistoryAPIFactory>;
-
-  HistoryAPIFactory();
-  virtual ~HistoryAPIFactory();
-
-  // 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_HISTORY_HISTORY_API_FACTORY_H_