Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/basewidget/fwl_comboboximp.cpp

Index: xfa/fwl/basewidget/fwl_comboboximp.cpp
diff --git a/xfa/fwl/basewidget/fwl_comboboximp.cpp b/xfa/fwl/basewidget/fwl_comboboximp.cpp
index 7368f7bbbd40d6d12c176c468408c780e0e62569..81c2fa75d3b1186e84a21d2f06f6313d812d35b7 100644
--- a/xfa/fwl/basewidget/fwl_comboboximp.cpp
+++ b/xfa/fwl/basewidget/fwl_comboboximp.cpp
@@ -490,13 +490,14 @@ FWL_Error CFWL_ComboBoxImp::GetClassName(CFX_WideString& wsClass) const {
   return FWL_Error::Succeeded;
 }
 
-uint32_t CFWL_ComboBoxImp::GetClassID() const {
-  return FWL_CLASSHASH_ComboBox;
+FWL_Type CFWL_ComboBoxImp::GetClassID() const {
+  return FWL_Type::ComboBox;
 }
 
 FWL_Error CFWL_ComboBoxImp::Initialize() {
   if (m_pWidgetMgr->IsFormDisabled())
     return DisForm_Initialize();
+
   if (CFWL_WidgetImp::Initialize() != FWL_Error::Succeeded)
     return FWL_Error::Indefinite;