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

xfa/fwl/core/ifwl_monthcalendar.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/ifwl_monthcalendar.h"
 
 #include <algorithm>
 
+#include "third_party/base/ptr_util.h"
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/core/cfwl_message.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/cfwl_themetext.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/ifwl_monthcalendar.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 
 #define MONTHCAL_HSEP_HEIGHT 1
 #define MONTHCAL_VSEP_WIDTH 1
@@ skipping 117 matching lines @@
   m_rtLBtn.Reset();
   m_rtRBtn.Reset();
   m_rtDates.Reset();
   m_rtHSep.Reset();
   m_rtHeadText.Reset();
   m_rtToday.Reset();
   m_rtTodayFlag.Reset();
   m_rtClient.Reset();
   m_rtWeekNum.Reset();
   m_rtWeekNumSep.Reset();
+
+  SetDelegate(pdfium::MakeUnique<CFWL_MonthCalendarImpDelegate>(this));
 }
 
 IFWL_MonthCalendar::~IFWL_MonthCalendar() {
   ClearDateItem();
   m_arrSelDays.RemoveAll();
 }
 
-void IFWL_MonthCalendar::Initialize() {
-  IFWL_Widget::Initialize();
-  m_pDelegate = new CFWL_MonthCalendarImpDelegate(this);
-}
-
-void IFWL_MonthCalendar::Finalize() {
-  delete m_pDelegate;
-  m_pDelegate = nullptr;
-  IFWL_Widget::Finalize();
-}
-
 FWL_Type IFWL_MonthCalendar::GetClassID() const {
   return FWL_Type::MonthCalendar;
 }
 
 FWL_Error IFWL_MonthCalendar::GetWidgetRect(CFX_RectF& rect,
                                             FX_BOOL bAutoSize) {
   if (bAutoSize) {
     CFX_SizeF fs = CalcSize(TRUE);
     rect.Set(0, 0, fs.x, fs.y);
     IFWL_Widget::GetWidgetRect(rect, TRUE);
@@ skipping 1033 matching lines @@
                            uint32_t dwSt,
                            CFX_RectF rc,
                            CFX_WideString& wsday)
     : iDay(day),
       iDayOfWeek(dayofweek),
       dwStates(dwSt),
       rect(rc),
       wsDay(wsday) {}
 
 FWL_DATEINFO::~FWL_DATEINFO() {}