Cleanup FWL Event and Message code.

xfa/fwl/core/cfwl_comboedit.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/cfwl_comboedit.h"
 
 #include <memory>
 #include <utility>
@@ skipping 29 matching lines @@
 
   m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
   ShowCaret(false);
 }
 
 void CFWL_ComboEdit::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
 
   bool backDefault = true;
-  switch (pMessage->GetClassID()) {
-    case CFWL_MessageType::SetFocus: {
+  switch (pMessage->GetType()) {
+    case CFWL_Message::Type::SetFocus: {
       m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
       backDefault = false;
       break;
     }
-    case CFWL_MessageType::KillFocus: {
+    case CFWL_Message::Type::KillFocus: {
       m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
       backDefault = false;
       break;
     }
-    case CFWL_MessageType::Mouse: {
+    case CFWL_Message::Type::Mouse: {
       CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(pMessage);
       if ((pMsg->m_dwCmd == FWL_MouseCommand::LeftButtonDown) &&
           ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)) {
         SetSelected();
         m_pOuter->SetFocus(true);
       }
       break;
     }
     default:
       break;
   }
   if (backDefault)
     CFWL_Edit::OnProcessMessage(pMessage);
 }