Unify CFWL_WidgetProperties and CFWL_WidgetImpProperties.

xfa/fwl/core/ifwl_comboboxproxy.cpp

 // Copyright 2016 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_comboboxproxy.h"
 
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/ifwl_app.h"
 #include "xfa/fwl/core/ifwl_combobox.h"
 
 IFWL_ComboBoxProxy::IFWL_ComboBoxProxy(
     IFWL_ComboBox* pComboBox,
     const IFWL_App* app,
-    const CFWL_WidgetImpProperties& properties,
+    std::unique_ptr<CFWL_WidgetProperties> properties,
     IFWL_Widget* pOuter)
-    : IFWL_FormProxy(app, properties, pOuter),
+    : IFWL_FormProxy(app, std::move(properties), pOuter),
       m_bLButtonDown(false),
       m_bLButtonUpSelf(false),
       m_pComboBox(pComboBox) {}
 
 IFWL_ComboBoxProxy::~IFWL_ComboBoxProxy() {}
 
 void IFWL_ComboBoxProxy::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
 
@@ skipping 80 matching lines @@
   m_pComboBox->ShowDropList(false);
 }
 
 void IFWL_ComboBoxProxy::OnFocusChanged(CFWL_MsgKillFocus* pMsg, bool bSet) {
   if (bSet)
     return;
 
   if (!pMsg->m_pSetFocus)
     m_pComboBox->ShowDropList(false);
 }