chromeos: Move files in //ash/common to //ash, part 2

ash/common/shelf/shelf_window_watcher_item_delegate.h

-// Copyright 2013 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_COMMON_SHELF_SHELF_WINDOW_WATCHER_ITEM_DELEGATE_H_
-#define ASH_COMMON_SHELF_SHELF_WINDOW_WATCHER_ITEM_DELEGATE_H_
-
-#include "ash/common/shelf/shelf_item_delegate.h"
-#include "base/macros.h"
-
-namespace ash {
-
-class WmWindow;
-
-// ShelfItemDelegate for the items created by ShelfWindowWatcher, for example:
-// The Chrome OS settings window, task manager window, and panel windows.
-class ShelfWindowWatcherItemDelegate : public ShelfItemDelegate {
- public:
-  ShelfWindowWatcherItemDelegate(ShelfID id, WmWindow* window);
-  ~ShelfWindowWatcherItemDelegate() override;
-
- private:
-  // ShelfItemDelegate overrides:
-  ShelfAction ItemSelected(ui::EventType event_type,
-                           int event_flags,
-                           int64_t display_id,
-                           ShelfLaunchSource source) override;
-  ShelfAppMenuItemList GetAppMenuItems(int event_flags) override;
-  void ExecuteCommand(uint32_t command_id, int event_flags) override;
-  void Close() override;
-
-  ShelfID id_;
-  // The window associated with this item. Not owned.
-  WmWindow* window_;
-
-  DISALLOW_COPY_AND_ASSIGN(ShelfWindowWatcherItemDelegate);
-};
-
-}  // namespace ash
-
-#endif  // ASH_COMMON_SHELF_SHELF_WINDOW_WATCHER_ITEM_DELEGATE_H_