Remove IFWL_*::Create methods, use new

xfa/fwl/lightwidget/cfwl_picturebox.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_picturebox.h"
 
 #include <memory>
 
+#include "third_party/base/ptr_util.h"
+
 IFWL_PictureBox* CFWL_PictureBox::GetWidget() {
   return static_cast<IFWL_PictureBox*>(m_pIface.get());
 }
 
 const IFWL_PictureBox* CFWL_PictureBox::GetWidget() const {
   return static_cast<IFWL_PictureBox*>(m_pIface.get());
 }
 
 FWL_Error CFWL_PictureBox::Initialize(
     const CFWL_WidgetProperties* pProperties) {
   if (m_pIface)
     return FWL_Error::Indefinite;
   if (pProperties) {
     *m_pProperties = *pProperties;
   }
-  std::unique_ptr<IFWL_PictureBox> pPictureBox(IFWL_PictureBox::Create(
-      m_pProperties->MakeWidgetImpProperties(&m_PictureBoxDP), nullptr));
+  std::unique_ptr<IFWL_PictureBox> pPictureBox =
+      pdfium::MakeUnique<IFWL_PictureBox>(
+          m_pProperties->MakeWidgetImpProperties(&m_PictureBoxDP));
   FWL_Error ret = pPictureBox->Initialize();
   if (ret != FWL_Error::Succeeded) {
     return ret;
   }
   m_pIface = std::move(pPictureBox);
   CFWL_Widget::Initialize();
   return FWL_Error::Succeeded;
 }
 
 CFX_DIBitmap* CFWL_PictureBox::GetPicture() {
@@ skipping 109 matching lines @@
   matrix.Rotate(m_fRotation);
   matrix.Translate(fLen, fWid);
   matrix.Scale(m_fScaleX, m_fScaleY);
   matrix.Translate(m_fOffSetX, m_fOffSetY);
   return FWL_Error::Succeeded;
 }
 
 int32_t CFWL_PictureBox::CFWL_PictureBoxDP::GetFlipMode(IFWL_Widget* pWidget) {
   return m_iFlipMode;
 }