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

xfa/fwl/core/ifwl_caret.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_caret.h"
 
+#include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/cfwl_themebackground.h"
 #include "xfa/fwl/core/cfwl_widgetimpproperties.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/ifwl_caret.h"
 #include "xfa/fwl/core/ifwl_themeprovider.h"
 
 IFWL_Caret::IFWL_Caret(const IFWL_App* app,
                        const CFWL_WidgetImpProperties& properties,
                        IFWL_Widget* pOuter)
     : IFWL_Widget(app, properties, pOuter),
       m_pTimer(new IFWL_Caret::Timer(this)),
       m_pTimerInfo(nullptr),
       m_dwElapse(400),
       m_bSetColor(FALSE) {
   SetStates(FWL_STATE_CAT_HightLight);
+  SetDelegate(pdfium::MakeUnique<CFWL_CaretImpDelegate>(this));
 }
 
-IFWL_Caret::~IFWL_Caret() {}
+IFWL_Caret::~IFWL_Caret() {
+  if (m_pTimerInfo) {
+    m_pTimerInfo->StopTimer();
+    m_pTimerInfo = nullptr;
+  }
+}
 
 FWL_Type IFWL_Caret::GetClassID() const {
   return FWL_Type::Caret;
 }
 
-void IFWL_Caret::Initialize() {
-  IFWL_Widget::Initialize();
-  m_pDelegate = new CFWL_CaretImpDelegate(this);
-}
-
-void IFWL_Caret::Finalize() {
-  if (m_pTimerInfo) {
-    m_pTimerInfo->StopTimer();
-    m_pTimerInfo = nullptr;
-  }
-  delete m_pDelegate;
-  m_pDelegate = nullptr;
-  IFWL_Widget::Finalize();
-}
-
 FWL_Error IFWL_Caret::DrawWidget(CFX_Graphics* pGraphics,
                                  const CFX_Matrix* pMatrix) {
   if (!pGraphics)
     return FWL_Error::Indefinite;
   if (!m_pProperties->m_pThemeProvider)
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
   if (!m_pProperties->m_pThemeProvider)
     return FWL_Error::Indefinite;
 
   DrawCaretBK(pGraphics, m_pProperties->m_pThemeProvider, pMatrix);
@@ skipping 65 matching lines @@
 
 CFWL_CaretImpDelegate::CFWL_CaretImpDelegate(IFWL_Caret* pOwner)
     : m_pOwner(pOwner) {}
 
 void CFWL_CaretImpDelegate::OnProcessMessage(CFWL_Message* pMessage) {}
 
 void CFWL_CaretImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics,
                                          const CFX_Matrix* pMatrix) {
   m_pOwner->DrawWidget(pGraphics, pMatrix);
 }