Move apps/shell to extensions/shell.

apps/shell/browser/shell_browser_main_delegate.h

-// Copyright 2014 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 APPS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
-#define APPS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_
-
-namespace content {
-class BrowserContext;
-}
-
-namespace apps {
-
-class ShellDesktopController;
-
-class ShellBrowserMainDelegate {
- public:
-  virtual ~ShellBrowserMainDelegate() {}
-
-  // Called to start an application after all initialization processes that are
-  // necesary to run apps are completed.
-  virtual void Start(content::BrowserContext* context) = 0;
-
-  // Called after the main message looop has stopped, but before
-  // other services such as BrowserContext / extension system are shut down.
-  virtual void Shutdown() = 0;
-
-  // Creates the ShellDesktopController instance to initialize the root window
-  // and window manager. Subclass may return its subclass to customize the
-  // windo manager.
-  virtual ShellDesktopController* CreateDesktopController() = 0;
-};
-
-}  // namespace apps
-
-#endif  // APPS_SHELL_BROWSER_SHELL_BROWSER_MAIN_DELEGATE_H_