Delete obviously unneeded forward declarations in chrome/browser/*.h.

chrome/browser/browser_window.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_BROWSER_WINDOW_H_
 #define CHROME_BROWSER_BROWSER_WINDOW_H_
 #pragma once
 
 #include "chrome/browser/tab_contents/navigation_entry.h"
 #include "chrome/common/content_settings_types.h"
 #include "gfx/native_widget_types.h"
 
 class Browser;
 class BrowserWindowTesting;
 class DownloadShelf;
 class FindBar;
 class GURL;
 class HtmlDialogUIDelegate;
 class LocationBar;
 class Profile;
 class StatusBubble;
 class TabContents;
-class TabContentsContainer;
 class TemplateURL;
 #if !defined(OS_MACOSX)
 class ToolbarView;
 #endif
 struct NativeWebKeyboardEvent;
 
 namespace gfx {
 class Rect;
 }
 
@@ skipping 320 matching lines @@
 
   // Returns the ToolbarView.
   virtual ToolbarView* GetToolbarView() const = 0;
 #endif
 
  protected:
   virtual ~BrowserWindowTesting() {}
 };
 
 #endif  // CHROME_BROWSER_BROWSER_WINDOW_H_