Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/theme/cfwl_widgettp.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/theme/cfwl_widgettp.h"
 
 #include <algorithm>
 
@@ skipping 29 matching lines @@
       pWidgetMgr->GetWidget(pParent, FWL_WGTRELATION_FirstChild);
   while (pChild) {
     IFWL_ThemeProvider* pTheme = pChild->GetThemeProvider();
     if (pTheme) {
       pTheme->SetThemeID(pChild, dwThemeID, FALSE);
     }
     FWL_SetChildThemeID(pChild, dwThemeID);
     pChild = pWidgetMgr->GetWidget(pChild, FWL_WGTRELATION_NextSibling);
   }
 }
-FX_BOOL CFWL_WidgetTP::IsValidWidget(IFWL_Widget* pWidget) {
+
+bool CFWL_WidgetTP::IsValidWidget(IFWL_Widget* pWidget) {
   return FALSE;
 }
+
 uint32_t CFWL_WidgetTP::GetThemeID(IFWL_Widget* pWidget) {
   return m_dwThemeID;
 }
+
 uint32_t CFWL_WidgetTP::SetThemeID(IFWL_Widget* pWidget,
                                    uint32_t dwThemeID,
                                    FX_BOOL bChildren) {
   uint32_t dwOld = m_dwThemeID;
   m_dwThemeID = dwThemeID;
   if (CFWL_ArrowData::IsInstance()) {
     CFWL_ArrowData::GetInstance()->SetColorData(FWL_GetThemeColor(dwThemeID));
   }
   if (bChildren) {
     FWL_SetChildThemeID(pWidget, dwThemeID);
@@ skipping 742 matching lines @@
     m_pColorData->clrEnd[0] = ArgbEncode(255, 175, 204, 251);
     m_pColorData->clrEnd[1] = ArgbEncode(255, 185, 218, 251);
     m_pColorData->clrEnd[2] = ArgbEncode(255, 210, 222, 235);
     m_pColorData->clrEnd[3] = ArgbEncode(255, 243, 241, 236);
     m_pColorData->clrSign[0] = ArgbEncode(255, 77, 97, 133);
     m_pColorData->clrSign[1] = ArgbEncode(255, 77, 97, 133);
     m_pColorData->clrSign[2] = ArgbEncode(255, 77, 97, 133);
     m_pColorData->clrSign[3] = ArgbEncode(255, 128, 128, 128);
   }
 }