Cleanup: Remove unneeded forward declarations from chrome/browser/ui/views.

chrome/browser/ui/views/infobars/extension_infobar.h

 // Copyright (c) 2011 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_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_
 #define CHROME_BROWSER_UI_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_
 #pragma once
 
 #include "chrome/browser/extensions/extension_infobar_delegate.h"
 #include "chrome/browser/extensions/image_loading_tracker.h"
 #include "chrome/browser/ui/views/infobars/infobar_view.h"
 #include "views/controls/menu/view_menu_delegate.h"
 
 class Browser;
-class TabContentsWrapper;
 namespace views {
 class MenuButton;
 }
 
 class ExtensionInfoBar : public InfoBarView,
                          public ImageLoadingTracker::Observer,
                          public ExtensionInfoBarDelegate::DelegateObserver,
                          public views::ViewMenuDelegate {
  public:
   ExtensionInfoBar(Browser* browser,
@@ skipping 33 matching lines @@
   // The dropdown menu for accessing the contextual extension actions.
   views::MenuButton* menu_;
 
   // Keeps track of images being loaded on the File thread.
   ImageLoadingTracker tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBar);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_INFOBARS_EXTENSION_INFOBAR_H_