Cleanup FWL Event and Message code.

xfa/fwl/core/cfwl_monthcalendar.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/core/cfwl_monthcalendar.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 894 matching lines @@
   DATEINFO* pDateInfo = m_arrDates[iDay - 1];
   if (!pDateInfo)
     return;
   rtDay = pDateInfo->rect;
 }
 
 void CFWL_MonthCalendar::OnProcessMessage(CFWL_Message* pMessage) {
   if (!pMessage)
     return;
 
-  CFWL_MessageType dwMsgCode = pMessage->GetClassID();
-  switch (dwMsgCode) {
-    case CFWL_MessageType::SetFocus:
-    case CFWL_MessageType::KillFocus:
+  switch (pMessage->GetType()) {
+    case CFWL_Message::Type::SetFocus:
+    case CFWL_Message::Type::KillFocus:
       GetOuter()->GetDelegate()->OnProcessMessage(pMessage);
       break;
-    case CFWL_MessageType::Key:
+    case CFWL_Message::Type::Key:
       break;
-    case CFWL_MessageType::Mouse: {
+    case CFWL_Message::Type::Mouse: {
       CFWL_MsgMouse* pMouse = static_cast<CFWL_MsgMouse*>(pMessage);
       switch (pMouse->m_dwCmd) {
         case FWL_MouseCommand::LeftButtonDown:
           OnLButtonDown(pMouse);
           break;
         case FWL_MouseCommand::LeftButtonUp:
           OnLButtonUp(pMouse);
           break;
         case FWL_MouseCommand::Move:
           OnMouseMove(pMouse);
@@ skipping 168 matching lines @@
                                        uint32_t dwSt,
                                        CFX_RectF rc,
                                        CFX_WideString& wsday)
     : iDay(day),
       iDayOfWeek(dayofweek),
       dwStates(dwSt),
       rect(rc),
       wsDay(wsday) {}
 
 CFWL_MonthCalendar::DATEINFO::~DATEINFO() {}