Unused FWL Classes.

xfa/fwl/core/fwl_panelimp.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FWL_CORE_FWL_PANELIMP_H_
 #define XFA_FWL_CORE_FWL_PANELIMP_H_
 
 #include "xfa/fwl/core/fwl_widgetimp.h"
 
 class CFWL_WidgetImpProperties;
 class IFWL_Widget;
 class IFWL_Content;
 
 class CFWL_PanelImp : public CFWL_WidgetImp {
  public:
   CFWL_PanelImp(const CFWL_WidgetImpProperties& properties,
                 IFWL_Widget* pOuter);
   virtual ~CFWL_PanelImp();
+
   virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const;
   virtual uint32_t GetClassID() const;
   virtual FWL_ERR GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
-  virtual FWL_ERR Update();
-  virtual IFWL_Content* GetContent();
-  virtual FWL_ERR SetContent(IFWL_Content* pContent);
-
- protected:
-  IFWL_Content* m_pContent;
 };
 
 #endif  // XFA_FWL_CORE_FWL_PANELIMP_H_