Cleanup IFWL_Widget visibility and virtual parameters

xfa/fwl/core/cfwl_widgetproperties.h

 // Copyright 2016 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_CFWL_WIDGETPROPERTIES_H_
 #define XFA_FWL_CORE_CFWL_WIDGETPROPERTIES_H_
 
 #include "core/fxcrt/fx_coordinates.h"
 #include "core/fxcrt/fx_system.h"
 #include "xfa/fwl/core/fwl_widgetdef.h"
 
 class IFWL_DataProvider;
 class IFWL_ThemeProvider;
 class IFWL_Widget;
 
 class CFWL_WidgetProperties {
  public:
   CFWL_WidgetProperties();
   CFWL_WidgetProperties(IFWL_DataProvider* dataProvider);
   ~CFWL_WidgetProperties();
 
-  CFX_Matrix m_ctmOnParent;
   CFX_RectF m_rtWidget;
   uint32_t m_dwStyles;
   uint32_t m_dwStyleExes;
   uint32_t m_dwStates;
   IFWL_ThemeProvider* m_pThemeProvider;
   IFWL_DataProvider* m_pDataProvider;
   IFWL_Widget* m_pParent;
   IFWL_Widget* m_pOwner;
 };
 
 inline CFWL_WidgetProperties::CFWL_WidgetProperties()
     : CFWL_WidgetProperties(nullptr) {}
 
 inline CFWL_WidgetProperties::CFWL_WidgetProperties(
     IFWL_DataProvider* dataProvider)
     : m_dwStyles(FWL_WGTSTYLE_Child),
       m_dwStyleExes(0),
       m_dwStates(0),
       m_pThemeProvider(nullptr),
       m_pDataProvider(dataProvider),
       m_pParent(nullptr),
       m_pOwner(nullptr) {
-  m_ctmOnParent.SetIdentity();
   m_rtWidget.Set(0, 0, 0, 0);
 }
 
 inline CFWL_WidgetProperties::~CFWL_WidgetProperties() {}
 
 #endif  // XFA_FWL_CORE_CFWL_WIDGETPROPERTIES_H_