mash: Remove shelf app menu item objects.

chrome/browser/ui/ash/launcher/chrome_launcher_app_menu_item_tab.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_UI_ASH_LAUNCHER_CHROME_LAUNCHER_APP_MENU_ITEM_TAB_H_
-#define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_APP_MENU_ITEM_TAB_H_
-
-#include "ash/public/cpp/shelf_application_menu_item.h"
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "content/public/browser/web_contents_observer.h"
-
-namespace content{
-class WebContents;
-}
-
-// A shelf application menu item for a running browser tab.
-class ChromeLauncherAppMenuItemTab : public ash::ShelfApplicationMenuItem,
-                                     public content::WebContentsObserver {
- public:
-  ChromeLauncherAppMenuItemTab(const base::string16 title,
-                               const gfx::Image* icon,
-                               content::WebContents* content);
-
-  // ash::ShelfApplicationMenuItem:
-  void Execute(int event_flags) override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ChromeLauncherAppMenuItemTab);
-};
-
-#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_APP_MENU_ITEM_TAB_H_