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

xfa/fwl/core/ifwl_checkbox.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_checkbox.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/cfwl_widgetmgr.h"
 #include "xfa/fwl/core/ifwl_app.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/ifwl_checkbox.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 
 namespace {
 
 const int kCaptionMargin = 5;
 
 }  // namespace
 
 IFWL_CheckBox::IFWL_CheckBox(const IFWL_App* app,
                              const CFWL_WidgetImpProperties& properties)
     : IFWL_Widget(app, properties, nullptr),
       m_dwTTOStyles(FDE_TTOSTYLE_SingleLine),
       m_iTTOAlign(FDE_TTOALIGNMENT_Center),
       m_bBtnDown(FALSE) {
   m_rtClient.Reset();
   m_rtBox.Reset();
   m_rtCaption.Reset();
   m_rtFocus.Reset();
+
+  SetDelegate(pdfium::MakeUnique<CFWL_CheckBoxImpDelegate>(this));
 }
 
 IFWL_CheckBox::~IFWL_CheckBox() {}
 
-void IFWL_CheckBox::Initialize() {
-  IFWL_Widget::Initialize();
-  m_pDelegate = new CFWL_CheckBoxImpDelegate(this);
-}
-
-void IFWL_CheckBox::Finalize() {
-  delete m_pDelegate;
-  m_pDelegate = nullptr;
-  IFWL_Widget::Finalize();
-}
-
 FWL_Type IFWL_CheckBox::GetClassID() const {
   return FWL_Type::CheckBox;
 }
 
 FWL_Error IFWL_CheckBox::GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize) {
   if (bAutoSize) {
     rect.Set(0, 0, 0, 0);
     if (!m_pProperties->m_pThemeProvider)
       m_pProperties->m_pThemeProvider = GetAvailableTheme();
     if (!m_pProperties->m_pThemeProvider)
@@ skipping 490 matching lines @@
 void CFWL_CheckBoxImpDelegate::OnKeyDown(CFWL_MsgKey* pMsg) {
   if (pMsg->m_dwKeyCode == FWL_VKEY_Tab) {
     m_pOwner->DispatchKeyEvent(pMsg);
     return;
   }
   if (pMsg->m_dwKeyCode == FWL_VKEY_Return ||
       pMsg->m_dwKeyCode == FWL_VKEY_Space) {
     m_pOwner->NextStates();
   }
 }