Remove IFWL_*::Create methods, use new

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/ptr_util.h"
 #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());
 }
 
 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));
+  std::unique_ptr<IFWL_ListBox> pListBox = pdfium::MakeUnique<IFWL_ListBox>(
+      m_pProperties->MakeWidgetImpProperties(&m_ListBoxDP), nullptr);
   FWL_Error ret = pListBox->Initialize();
   if (ret != FWL_Error::Succeeded) {
     return ret;
   }
   m_pIface = std::move(pListBox);
   CFWL_Widget::Initialize();
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_ListBox::AddDIBitmap(CFX_DIBitmap* pDIB, IFWL_ListItem* pItem) {
@@ skipping 307 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() {}