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diff --git a/chromium/ash/shelf/shelf_item_delegate.h b/chromium/ash/shelf/shelf_item_delegate.h
new file mode 100644
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+++ b/chromium/ash/shelf/shelf_item_delegate.h
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+// 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_SHELF_SHELF_ITEM_DELEGATE_H_
+#define ASH_SHELF_SHELF_ITEM_DELEGATE_H_
+
+#include "ash/ash_export.h"
+#include "base/strings/string16.h"
+
+namespace aura {
+class Window;
+}
+
+namespace ui {
+class Event;
+class MenuModel;
+}
+
+namespace ash {
+
+class ShelfMenuModel;
+
+// Delegate for the LauncherItem.
+class ASH_EXPORT ShelfItemDelegate {
+ public:
+  virtual ~ShelfItemDelegate() {}
+
+  // Invoked when the user clicks on a window entry in the launcher.
+  // |event| is the click event. The |event| is dispatched by a view
+  // and has an instance of |views::View| as the event target
+  // but not |aura::Window|. If the |event| is of type KeyEvent, it is assumed
+  // that this was triggered by keyboard action (Alt+<number>) and special
+  // handling might happen.
+  // Returns true if a new item was created.
+  virtual bool ItemSelected(const ui::Event& event) = 0;
+
+  // Returns the title to display.
+  virtual base::string16 GetTitle() = 0;
+
+  // Returns the context menumodel for the specified item on
+  // |root_window|.  Return NULL if there should be no context
+  // menu. The caller takes ownership of the returned model.
+  virtual ui::MenuModel* CreateContextMenu(aura::Window* root_window) = 0;
+
+  // Returns the application menu model for the specified item. There are three
+  // possible return values:
+  //  - A return of NULL indicates that no menu is wanted for this item.
+  //  - A return of a menu with one item means that only the name of the
+  //    application/item was added and there are no active applications.
+  //    Note: This is useful for hover menus which also show context help.
+  //  - A list containing the title and the active list of items.
+  // The caller takes ownership of the returned model.
+  // |event_flags| specifies the flags of the event which triggered this menu.
+  virtual ShelfMenuModel* CreateApplicationMenu(int event_flags) = 0;
+
+  // Whether the launcher item is draggable.
+  virtual bool IsDraggable() = 0;
+
+  // Returns true if a tooltip should be shown.
+  virtual bool ShouldShowTooltip() = 0;
+};
+
+}  // namespace ash
+
+#endif  // ASH_SHELF_SHELF_ITEM_DELEGATE_H_