Remove CFWL_Note.

xfa/fxfa/app/xfa_ffcheckbutton.cpp

Index: xfa/fxfa/app/xfa_ffcheckbutton.cpp
diff --git a/xfa/fxfa/app/xfa_ffcheckbutton.cpp b/xfa/fxfa/app/xfa_ffcheckbutton.cpp
index 85f445fedcbb453e943e4e5de061baa4f373f81d..4527afef7d92aebe106a4778e5e506c3244563b5 100644
--- a/xfa/fxfa/app/xfa_ffcheckbutton.cpp
+++ b/xfa/fxfa/app/xfa_ffcheckbutton.cpp
@@ -298,11 +298,11 @@ FX_BOOL CXFA_FFCheckButton::UpdateFWLData() {
 int32_t CXFA_FFCheckButton::OnProcessMessage(CFWL_Message* pMessage) {
   return m_pOldDelegate->OnProcessMessage(pMessage);
 }
+
 FWL_ERR CXFA_FFCheckButton::OnProcessEvent(CFWL_Event* pEvent) {
   CXFA_FFField::OnProcessEvent(pEvent);
-  uint32_t dwEventID = pEvent->GetClassID();
-  switch (dwEventID) {
-    case FWL_EVTHASH_CKB_CheckStateChanged: {
+  switch (pEvent->GetClassID()) {
+    case CFWL_EventType::CheckStateChanged: {
       CXFA_EventParam eParam;
       eParam.m_eType = XFA_EVENT_Change;
       m_pDataAcc->GetValue(eParam.m_wsNewText, XFA_VALUEPICTURE_Raw);
@@ -327,10 +327,12 @@ FWL_ERR CXFA_FFCheckButton::OnProcessEvent(CFWL_Event* pEvent) {
       m_pDataAcc->ProcessEvent(XFA_ATTRIBUTEENUM_Click, &eParam);
       break;
     }
-    default: {}
+    default:
+      break;
   }
   return m_pOldDelegate->OnProcessEvent(pEvent);
 }
+
 FWL_ERR CXFA_FFCheckButton::OnDrawWidget(CFX_Graphics* pGraphics,
                                          const CFX_Matrix* pMatrix) {
   return m_pOldDelegate->OnDrawWidget(pGraphics, pMatrix);