ash: Rename LauncherAlignmentMenu to ShelfAlignmentMenu and move to shelf/ directory.

ash/launcher/launcher_alignment_menu.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 ASH_WM_LAUNCHER_LAUNCHER_ALIGNMENT_MENU_H_
-#define ASH_WM_LAUNCHER_LAUNCHER_ALIGNMENT_MENU_H_
-
-#include "ash/ash_export.h"
-#include "base/basictypes.h"
-#include "ui/base/models/simple_menu_model.h"
-
-namespace aura {
-class RootWindow;
-}
-
-namespace ash {
-
-// Submenu for choosing the alignment of the launcher.
-class ASH_EXPORT LauncherAlignmentMenu : public ui::SimpleMenuModel,
-                                         public ui::SimpleMenuModel::Delegate {
- public:
-  explicit LauncherAlignmentMenu(aura::RootWindow* root);
-  virtual ~LauncherAlignmentMenu();
-
-  // ui::SimpleMenuModel::Delegate overrides:
-  virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;
-  virtual bool IsCommandIdEnabled(int command_id) const OVERRIDE;
-  virtual bool GetAcceleratorForCommandId(
-      int command_id,
-      ui::Accelerator* accelerator) OVERRIDE;
-  virtual void ExecuteCommand(int command_id, int event_flags) OVERRIDE;
-
- private:
-  enum MenuItem {
-    // Offset so as not to interfere with other menus.
-    MENU_ALIGN_LEFT = 500,
-    MENU_ALIGN_RIGHT,
-    MENU_ALIGN_BOTTOM,
-  };
-
-  aura::RootWindow* root_window_;
-
-  DISALLOW_COPY_AND_ASSIGN(LauncherAlignmentMenu);
-};
-
-}  // namespace ash
-
-#endif  // ASH_WM_LAUNCHER_LAUNCHER_ALIGNMENT_MENU_H_