Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/basewidget/fwl_tooltipctrlimp.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_tooltipctrlimp.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fwl/basewidget/ifwl_tooltip.h"
@@ skipping 44 matching lines @@
 CFWL_ToolTipImp::~CFWL_ToolTipImp() {
   if (m_pTimer) {
     delete m_pTimer;
     m_pTimer = NULL;
   }
 }
 FWL_ERR CFWL_ToolTipImp::GetClassName(CFX_WideString& wsClass) const {
   wsClass = FWL_CLASS_ToolTip;
   return FWL_ERR_Succeeded;
 }
-uint32_t CFWL_ToolTipImp::GetClassID() const {
-  return FWL_CLASSHASH_ToolTip;
-}
+
 FWL_ERR CFWL_ToolTipImp::Initialize() {
   m_pProperties->m_dwStyles |= FWL_WGTSTYLE_Popup;
   m_pProperties->m_dwStyles &= ~FWL_WGTSTYLE_Child;
   if (CFWL_WidgetImp::Initialize() != FWL_ERR_Succeeded)
     return FWL_ERR_Indefinite;
   m_pDelegate = new CFWL_ToolTipImpDelegate(this);
   return FWL_ERR_Succeeded;
 }
 FWL_ERR CFWL_ToolTipImp::Finalize() {
   delete m_pDelegate;
@@ skipping 209 matching lines @@
 int32_t CFWL_ToolTipImpDelegate::OnProcessMessage(CFWL_Message* pMessage) {
   return CFWL_WidgetImpDelegate::OnProcessMessage(pMessage);
 }
 FWL_ERR CFWL_ToolTipImpDelegate::OnProcessEvent(CFWL_Event* pEvent) {
   return FWL_ERR_Succeeded;
 }
 FWL_ERR CFWL_ToolTipImpDelegate::OnDrawWidget(CFX_Graphics* pGraphics,
                                               const CFX_Matrix* pMatrix) {
   return m_pOwner->DrawWidget(pGraphics, pMatrix);
 }