Remove FWL Create methods, use new instead

xfa/fwl/lightwidget/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/lightwidget/cfwl_listbox.h"
 
 #include <memory>
 
 #include "third_party/base/stl_util.h"
 
 IFWL_ListBox* CFWL_ListBox::GetWidget() {
   return static_cast<IFWL_ListBox*>(m_pIface.get());
 }
 
 const IFWL_ListBox* CFWL_ListBox::GetWidget() const {
   return static_cast<IFWL_ListBox*>(m_pIface.get());
 }
 
-CFWL_ListBox* CFWL_ListBox::Create() {
-  return new CFWL_ListBox;
-}
-
 FWL_Error CFWL_ListBox::Initialize(const CFWL_WidgetProperties* pProperties) {
   if (m_pIface)
     return FWL_Error::Indefinite;
   if (pProperties) {
     *m_pProperties = *pProperties;
   }
   std::unique_ptr<IFWL_ListBox> pListBox(IFWL_ListBox::Create(
       m_pProperties->MakeWidgetImpProperties(&m_ListBoxDP), nullptr));
   FWL_Error ret = pListBox->Initialize();
   if (ret != FWL_Error::Succeeded) {
@@ skipping 315 matching lines @@
   m_rtItem.Reset();
   m_dwStates = 0;
   m_wsText = L"";
   m_pDIB = nullptr;
   m_pData = nullptr;
   m_dwCheckState = 0;
   m_rtCheckBox.Reset();
 }
 
 CFWL_ListItem::~CFWL_ListItem() {}