Cleanup: Remove unneeded headers from app/

chrome/browser/wrench_menu_model.h

 // Copyright (c) 2010 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_WRENCH_MENU_MODEL_H_
 #define CHROME_BROWSER_WRENCH_MENU_MODEL_H_
 #pragma once
 
 #include <set>
 #include <vector>
 
 #include "app/menus/button_menu_item_model.h"
 #include "app/menus/simple_menu_model.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 
 class Browser;
 
-namespace menus {
-class ButtonMenuItemModel;
-}  // namespace menus
-
 namespace {
 class MockWrenchMenuModel;
 }  // namespace
 
 // A menu model that builds the contents of an encoding menu.
 class EncodingMenuModel : public menus::SimpleMenuModel,
                           public menus::SimpleMenuModel::Delegate {
  public:
   explicit EncodingMenuModel(Browser* browser);
   virtual ~EncodingMenuModel() {}
@@ skipping 111 matching lines @@
 
   Browser* browser_;  // weak
   TabStripModel* tabstrip_model_; // weak
 
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(WrenchMenuModel);
 };
 
 #endif  // CHROME_BROWSER_WRENCH_MENU_MODEL_H_