Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/basewidget/fwl_formproxyimp.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/basewidget/fwl_formproxyimp.h"
 
 #include "xfa/fwl/core/fwl_formimp.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 
 CFWL_FormProxyImp::CFWL_FormProxyImp(const CFWL_WidgetImpProperties& properties,
                                      IFWL_Widget* pOuter)
     : CFWL_FormImp(properties, pOuter) {}
+
 CFWL_FormProxyImp::~CFWL_FormProxyImp() {}
+
 FWL_Error CFWL_FormProxyImp::GetClassName(CFX_WideString& wsClass) const {
   wsClass = FWL_CLASS_FormProxy;
   return FWL_Error::Succeeded;
 }
-uint32_t CFWL_FormProxyImp::GetClassID() const {
-  return FWL_CLASSHASH_FormProxy;
+
+FWL_Type CFWL_FormProxyImp::GetClassID() const {
+  return FWL_Type::FormProxy;
 }
+
 FX_BOOL CFWL_FormProxyImp::IsInstance(const CFX_WideStringC& wsClass) const {
   if (wsClass == CFX_WideStringC(FWL_CLASS_FormProxy)) {
     return TRUE;
   }
   return CFWL_FormImp::IsInstance(wsClass);
 }
 FWL_Error CFWL_FormProxyImp::Initialize() {
   if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded)
     return FWL_Error::Indefinite;
   m_pDelegate = new CFWL_FormProxyImpDelegate(this);
@@ skipping 12 matching lines @@
   return FWL_Error::Succeeded;
 }
 
 CFWL_FormProxyImpDelegate::CFWL_FormProxyImpDelegate(CFWL_FormProxyImp* pOwner)
     : m_pOwner(pOwner) {}
 
 void CFWL_FormProxyImpDelegate::OnProcessMessage(CFWL_Message* pMessage) {
   IFWL_WidgetDelegate* pDelegate = m_pOwner->m_pOuter->SetDelegate(NULL);
   pDelegate->OnProcessMessage(pMessage);
 }