Move the ShortcutsBackend from history to autocomplete so that it can fully

chrome/browser/history/shortcuts_backend_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_HISTORY_SHORTCUTS_BACKEND_FACTORY_H_
-#define CHROME_BROWSER_HISTORY_SHORTCUTS_BACKEND_FACTORY_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/memory/singleton.h"
-#include "components/keyed_service/content/refcounted_browser_context_keyed_service_factory.h"
-
-class Profile;
-
-namespace history {
-class ShortcutsBackend;
-}  // namespace history
-
-// Singleton that owns all instances of ShortcutsBackend and associates them
-// with Profiles.
-class ShortcutsBackendFactory
-    : public RefcountedBrowserContextKeyedServiceFactory {
- public:
-  static scoped_refptr<history::ShortcutsBackend> GetForProfile(
-      Profile* profile);
-
-  static scoped_refptr<history::ShortcutsBackend> GetForProfileIfExists(
-      Profile* profile);
-
-  static ShortcutsBackendFactory* GetInstance();
-
-  // Creates and returns a backend for testing purposes.
-  static scoped_refptr<RefcountedBrowserContextKeyedService>
-      BuildProfileForTesting(content::BrowserContext* profile);
-
-  // Creates and returns a backend but without creating its persistent database
-  // for testing purposes.
-  static scoped_refptr<RefcountedBrowserContextKeyedService>
-      BuildProfileNoDatabaseForTesting(content::BrowserContext* profile);
-
- private:
-  friend struct DefaultSingletonTraits<ShortcutsBackendFactory>;
-
-  ShortcutsBackendFactory();
-  virtual ~ShortcutsBackendFactory();
-
-  // BrowserContextKeyedServiceFactory:
-  virtual scoped_refptr<RefcountedBrowserContextKeyedService>
-      BuildServiceInstanceFor(content::BrowserContext* profile) const OVERRIDE;
-  virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
-};
-
-#endif  // CHROME_BROWSER_HISTORY_SHORTCUTS_BACKEND_FACTORY_H_