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

xfa/fwl/core/cfwl_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/cfwl_checkbox.h"
 
 #include <memory>
 
+#include "third_party/base/ptr_util.h"
 #include "xfa/fwl/core/fwl_error.h"
 
 namespace {
 
 IFWL_CheckBox* ToCheckBox(IFWL_Widget* widget) {
   return static_cast<IFWL_CheckBox*>(widget);
 }
 
 }  // namespace
 
 CFWL_CheckBox::CFWL_CheckBox(const IFWL_App* app) : CFWL_Widget(app) {}
 
 CFWL_CheckBox::~CFWL_CheckBox() {}
 
 void CFWL_CheckBox::Initialize() {
   ASSERT(!m_pIface);
 
-  std::unique_ptr<IFWL_CheckBox> pCheckBox(new IFWL_CheckBox(
-      m_pApp, m_pProperties->MakeWidgetImpProperties(&m_checkboxData)));
-  pCheckBox->Initialize();
+  m_pIface = pdfium::MakeUnique<IFWL_CheckBox>(
+      m_pApp, m_pProperties->MakeWidgetImpProperties(&m_checkboxData));
 
-  m_pIface = std::move(pCheckBox);
   CFWL_Widget::Initialize();
 }
 
 FWL_Error CFWL_CheckBox::SetCaption(const CFX_WideStringC& wsCaption) {
   m_checkboxData.m_wsCaption = wsCaption;
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_CheckBox::SetBoxSize(FX_FLOAT fHeight) {
   m_checkboxData.m_fBoxHeight = fHeight;
@@ skipping 14 matching lines @@
 FWL_Error CFWL_CheckBox::CFWL_CheckBoxDP::GetCaption(
     IFWL_Widget* pWidget,
     CFX_WideString& wsCaption) {
   wsCaption = m_wsCaption;
   return FWL_Error::Succeeded;
 }
 
 FX_FLOAT CFWL_CheckBox::CFWL_CheckBoxDP::GetBoxSize(IFWL_Widget* pWidget) {
   return m_fBoxHeight;
 }