Remove FWL_WGTHITTEST_* defines in favour of enum class.

xfa/fwl/basewidget/fwl_comboboximp.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/basewidget/fwl_comboboximp.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fee/fde_txtedtengine.h"
@@ skipping 575 matching lines @@
     m_pProperties->m_pThemeProvider = GetAvailableTheme();
   }
   Layout();
   CFWL_ThemePart part;
   part.m_pWidget = m_pInterface;
   m_fComboFormHandler =
       *static_cast<FX_FLOAT*>(m_pProperties->m_pThemeProvider->GetCapacity(
           &part, CFWL_WidgetCapacity::ComboFormHandler));
   return FWL_ERR_Succeeded;
 }
-uint32_t CFWL_ComboBoxImp::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
+FWL_WidgetHit CFWL_ComboBoxImp::HitTest(FX_FLOAT fx, FX_FLOAT fy) {
   if (m_pWidgetMgr->IsFormDisabled()) {
     return DisForm_HitTest(fx, fy);
   }
   return CFWL_WidgetImp::HitTest(fx, fy);
 }
 FWL_ERR CFWL_ComboBoxImp::DrawWidget(CFX_Graphics* pGraphics,
                                      const CFX_Matrix* pMatrix) {
   if (m_pWidgetMgr->IsFormDisabled()) {
     return DisForm_DrawWidget(pGraphics, pMatrix);
   }
@@ skipping 640 matching lines @@
   if (m_iLock) {
     return FWL_ERR_Indefinite;
   }
   if (m_pEdit) {
     ReSetEditAlignment();
   }
   ReSetTheme();
   Layout();
   return FWL_ERR_Succeeded;
 }
-uint32_t CFWL_ComboBoxImp::DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy) {
+FWL_WidgetHit CFWL_ComboBoxImp::DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy) {
   CFX_RectF rect;
   rect.Set(0, 0, m_pProperties->m_rtWidget.width - m_rtBtn.width,
            m_pProperties->m_rtWidget.height);
-  if (rect.Contains(fx, fy)) {
-    return FWL_WGTHITTEST_Edit;
-  }
-  if (m_rtBtn.Contains(fx, fy)) {
-    return FWL_WGTHITTEST_Client;
-  }
+  if (rect.Contains(fx, fy))
+    return FWL_WidgetHit::Edit;
+  if (m_rtBtn.Contains(fx, fy))
+    return FWL_WidgetHit::Client;
   if (DisForm_IsDropListShowed()) {
     m_pListBox->GetWidgetRect(rect);
-    if (rect.Contains(fx, fy)) {
-      return FWL_WGTHITTEST_Client;
-    }
+    if (rect.Contains(fx, fy))
+      return FWL_WidgetHit::Client;
   }
-  return FWL_WGTHITTEST_Unknown;
+  return FWL_WidgetHit::Unknown;
 }
 FWL_ERR CFWL_ComboBoxImp::DisForm_DrawWidget(CFX_Graphics* pGraphics,
                                              const CFX_Matrix* pMatrix) {
   IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
   CFX_Matrix mtOrg;
   mtOrg.Set(1, 0, 0, 1, 0, 0);
   if (pMatrix) {
     mtOrg = *pMatrix;
   }
   FX_BOOL bListShowed = m_pListBox && DisForm_IsDropListShowed();
@@ skipping 562 matching lines @@
   m_pComboBox->ShowDropList(FALSE);
 }
 void CFWL_ComboProxyImpDelegate::OnFocusChanged(CFWL_MsgKillFocus* pMsg,
                                                 FX_BOOL bSet) {
   if (!bSet) {
     if (pMsg->m_pSetFocus == NULL) {
       m_pComboBox->ShowDropList(FALSE);
     }
   }
 }