Cleanup FWL Event and Message code.

xfa/fwl/core/cfwl_spinbutton.cpp

Index: xfa/fwl/core/cfwl_spinbutton.cpp
diff --git a/xfa/fwl/core/cfwl_spinbutton.cpp b/xfa/fwl/core/cfwl_spinbutton.cpp
index 71ed3b05d21f09f2320719436770eee59aa5a933..9c1dc557bd95f71a43402bcb00f62b9394cf2f1b 100644
--- a/xfa/fwl/core/cfwl_spinbutton.cpp
+++ b/xfa/fwl/core/cfwl_spinbutton.cpp
@@ -10,7 +10,7 @@
 #include <utility>
 
 #include "third_party/base/ptr_util.h"
-#include "xfa/fwl/core/cfwl_evtclick.h"
+#include "xfa/fwl/core/cfwl_event.h"
 #include "xfa/fwl/core/cfwl_msgkey.h"
 #include "xfa/fwl/core/cfwl_msgmouse.h"
 #include "xfa/fwl/core/cfwl_notedriver.h"
@@ -237,7 +237,7 @@ void CFWL_SpinButton::OnLButtonDown(CFWL_MsgMouse* pMsg) {
     m_dwDnState = CFWL_PartState_Pressed;
   }
 
-  CFWL_EvtClick wmPosChanged;
+  CFWL_Event wmPosChanged(CFWL_EventType::Click);
   wmPosChanged.m_pSrcTarget = this;
   DispatchEvent(&wmPosChanged);
 
@@ -359,7 +359,7 @@ void CFWL_SpinButton::OnKeyDown(CFWL_MsgKey* pMsg) {
   if (!bUpEnable && !bDownEnable)
     return;
 
-  CFWL_EvtClick wmPosChanged;
+  CFWL_Event wmPosChanged(CFWL_EventType::Click);
   wmPosChanged.m_pSrcTarget = this;
   DispatchEvent(&wmPosChanged);
 
@@ -375,7 +375,7 @@ void CFWL_SpinButton::Timer::Run(CFWL_TimerInfo* pTimerInfo) {
   if (!pButton->m_pTimerInfo)
     return;
 
-  CFWL_EvtClick wmPosChanged;
+  CFWL_Event wmPosChanged(CFWL_EventType::Click);
   wmPosChanged.m_pSrcTarget = pButton;
   pButton->DispatchEvent(&wmPosChanged);
 }