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

chrome/browser/ui/views/tab_icon_view.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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_TAB_ICON_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_TAB_ICON_VIEW_H_
 #pragma once
 
 #include "views/view.h"
 
 class SkBitmap;
-class TabContents;
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // A view to display a tab favicon or a throbber.
 //
 ////////////////////////////////////////////////////////////////////////////////
 class TabIconView : public views::View {
  public:
   // Classes implement this interface to provide state for the TabIconView.
   class TabIconViewModel {
@@ skipping 41 matching lines @@
   bool is_light_;
 
   // Current frame of the throbber being painted. This is only used if
   // throbber_running_ is true.
   int throbber_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(TabIconView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TAB_ICON_VIEW_H_