Remove unused CFWL_ListBox code

xfa/fwl/cfwl_listbox.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_CFWL_LISTBOX_H_
 #define XFA_FWL_CFWL_LISTBOX_H_
 
 #include <memory>
 #include <vector>
 
 #include "xfa/fwl/cfwl_edit.h"
 #include "xfa/fwl/cfwl_event.h"
 #include "xfa/fwl/cfwl_listbox.h"
 #include "xfa/fwl/cfwl_listitem.h"
 #include "xfa/fwl/cfwl_widget.h"
 #include "xfa/fwl/cfwl_widgetproperties.h"
 
 #define FWL_STYLEEXT_LTB_MultiSelection (1L << 0)
-#define FWL_STYLEEXT_LTB_ShowScrollBarAlaways (1L << 2)
-#define FWL_STYLEEXT_LTB_MultiColumn (1L << 3)
 #define FWL_STYLEEXT_LTB_LeftAlign (0L << 4)
 #define FWL_STYLEEXT_LTB_CenterAlign (1L << 4)
 #define FWL_STYLEEXT_LTB_RightAlign (2L << 4)
-#define FWL_STYLEEXT_LTB_MultiLine (1L << 6)
-#define FWL_STYLEEXT_LTB_OwnerDraw (1L << 7)
-#define FWL_STYLEEXT_LTB_Icon (1L << 8)
-#define FWL_STYLEEXT_LTB_Check (1L << 9)
 #define FWL_STYLEEXT_LTB_AlignMask (3L << 4)
 #define FWL_STYLEEXT_LTB_ShowScrollBarFocus (1L << 10)
 #define FWL_ITEMSTATE_LTB_Selected (1L << 0)
 #define FWL_ITEMSTATE_LTB_Focused (1L << 1)
-#define FWL_ITEMSTATE_LTB_Checked (1L << 2)
 
 class CFWL_MessageKillFocus;
 class CFWL_MessageMouse;
 class CFWL_MessageMouseWheel;
 class CFX_DIBitmap;
 
 class CFWL_ListBox : public CFWL_Widget {
  public:
   explicit CFWL_ListBox(const CFWL_App* pApp,
                         std::unique_ptr<CFWL_WidgetProperties> properties,
@@ skipping 41 matching lines @@
   const CFX_RectF& GetRTClient() const { return m_rtClient; }
 
  private:
   void SetSelectionDirect(CFWL_ListItem* hItem, bool bSelect);
   bool IsMultiSelection() const;
   bool IsItemSelected(CFWL_ListItem* hItem);
   void ClearSelection();
   void SelectAll();
   CFWL_ListItem* GetFocusedItem();
   void SetFocusItem(CFWL_ListItem* hItem);
-  bool SetItemChecked(CFWL_ListItem* hItem, bool bChecked);
-  bool GetItemChecked(CFWL_ListItem* hItem);
   void DrawBkground(CFX_Graphics* pGraphics,
                     IFWL_ThemeProvider* pTheme,
                     const CFX_Matrix* pMatrix);
   void DrawItems(CFX_Graphics* pGraphics,
                  IFWL_ThemeProvider* pTheme,
                  const CFX_Matrix* pMatrix);
   void DrawItem(CFX_Graphics* pGraphics,
                 IFWL_ThemeProvider* pTheme,
                 CFWL_ListItem* hItem,
                 int32_t Index,
@@ skipping 28 matching lines @@
   int32_t m_iTTOAligns;
   CFWL_ListItem* m_hAnchor;
   FX_FLOAT m_fItemHeight;
   FX_FLOAT m_fScorllBarWidth;
   bool m_bLButtonDown;
   IFWL_ThemeProvider* m_pScrollBarTP;
   std::vector<std::unique_ptr<CFWL_ListItem>> m_ItemArray;
 };
 
 #endif  // XFA_FWL_CFWL_LISTBOX_H_