Remove DataProvider from CFWL_WidgetProperties

xfa/fwl/core/cfwl_listbox.cpp

 // 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
 
 #include "xfa/fwl/core/cfwl_listbox.h"
 
 #include <memory>
 #include <utility>
@@ skipping 11 matching lines @@
 }  // namespace
 
 CFWL_ListBox::CFWL_ListBox(const CFWL_App* app) : CFWL_Widget(app) {}
 
 CFWL_ListBox::~CFWL_ListBox() {}
 
 void CFWL_ListBox::Initialize() {
   ASSERT(!m_pIface);
 
   m_pIface = pdfium::MakeUnique<IFWL_ListBox>(
-      m_pApp, pdfium::MakeUnique<CFWL_WidgetProperties>(this), nullptr);
+      m_pApp, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr);
 
   CFWL_Widget::Initialize();
 }
 
 CFWL_ListItem* CFWL_ListBox::GetItem(const IFWL_Widget* pWidget,
                                      int32_t nIndex) const {
   return GetWidget() ? ToListBox(GetWidget())->GetItem(pWidget, nIndex)
                      : nullptr;
 }
 
@@ skipping 34 matching lines @@
 }
 
 int32_t CFWL_ListBox::GetSelIndex(int32_t nIndex) {
   return GetWidget() ? ToListBox(GetWidget())->GetSelIndex(nIndex) : 0;
 }
 
 void CFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) {
   if (GetWidget())
     ToListBox(GetWidget())->SetSelItem(pItem, bSelect);
 }