Fold IFWL*::{Initialize|Finalize} into constructor/destructor

xfa/fwl/core/cfwl_datetimepicker.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_datetimepicker.h"
 
 #include <memory>
 
+#include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/fwl_error.h"
 #include "xfa/fwl/core/ifwl_datetimepicker.h"
 #include "xfa/fwl/core/ifwl_widget.h"
 
 namespace {
 
 IFWL_DateTimePicker* ToDateTimePicker(IFWL_Widget* widget) {
   return static_cast<IFWL_DateTimePicker*>(widget);
 }
 
 }  // namespace
 
 CFWL_DateTimePicker::CFWL_DateTimePicker(const IFWL_App* app)
     : CFWL_Widget(app) {}
 
 CFWL_DateTimePicker::~CFWL_DateTimePicker() {}
 
 void CFWL_DateTimePicker::Initialize() {
   ASSERT(!m_pIface);
 
-  std::unique_ptr<IFWL_DateTimePicker> pDateTimePicker(new IFWL_DateTimePicker(
-      m_pApp, m_pProperties->MakeWidgetImpProperties(&m_DateTimePickerDP)));
-  pDateTimePicker->Initialize();
+  m_pIface = pdfium::MakeUnique<IFWL_DateTimePicker>(
+      m_pApp, m_pProperties->MakeWidgetImpProperties(&m_DateTimePickerDP));
 
-  m_pIface = std::move(pDateTimePicker);
   CFWL_Widget::Initialize();
 }
 
 FWL_Error CFWL_DateTimePicker::SetToday(int32_t iYear,
                                         int32_t iMonth,
                                         int32_t iDay) {
   m_DateTimePickerDP.m_iYear = iYear;
   m_DateTimePickerDP.m_iMonth = iMonth;
   m_DateTimePickerDP.m_iDay = iDay;
   return FWL_Error::Succeeded;
@@ skipping 109 matching lines @@
 
 FWL_Error CFWL_DateTimePicker::SetEditLimit(int32_t nLimit) {
   return ToDateTimePicker(GetWidget())->SetEditLimit(nLimit);
 }
 
 FWL_Error CFWL_DateTimePicker::ModifyEditStylesEx(uint32_t dwStylesExAdded,
                                                   uint32_t dwStylesExRemoved) {
   return ToDateTimePicker(GetWidget())
       ->ModifyEditStylesEx(dwStylesExAdded, dwStylesExRemoved);
 }