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

chrome/browser/ui/views/sad_tab_view.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_SAD_TAB_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_SAD_TAB_VIEW_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "views/controls/link_listener.h"
 #include "views/view.h"
 
 class TabContents;
 
 namespace gfx {
 class Font;
 }
 
 namespace views {
-class ImageView;
 class Label;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 //
 // SadTabView
 //
 //  A views::View subclass used to render the presentation of the crashed
 //  "sad tab" in the browser window when a renderer is destroyed unnaturally.
 //
@@ skipping 33 matching lines @@
   bool painted_;
   const gfx::Font& base_font_;
   views::Label* message_;
   views::Link* help_link_;
   views::Link* feedback_link_;
 
   DISALLOW_COPY_AND_ASSIGN(SadTabView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_SAD_TAB_VIEW_H__