Remove CLASSHASH defines in favour of an enum class.

xfa/fwl/basewidget/ifwl_barcode.h

 // 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
 
 #ifndef XFA_FWL_BASEWIDGET_IFWL_BARCODE_H_
 #define XFA_FWL_BASEWIDGET_IFWL_BARCODE_H_
 
 #include "xfa/fxbarcode/include/BC_Library.h"
 #include "xfa/fwl/basewidget/ifwl_edit.h"
 
 class CFWL_WidgetImpProperties;
 
 #define FWL_CLASS_Barcode L"FWL_BARCODE"
-#define FWL_CLASSHASH_Barcode 366886968
 
 enum FWL_BCDAttribute {
   FWL_BCDATTRIBUTE_NONE = 0,
   FWL_BCDATTRIBUTE_CHARENCODING = 1 << 0,
   FWL_BCDATTRIBUTE_MODULEHEIGHT = 1 << 1,
   FWL_BCDATTRIBUTE_MODULEWIDTH = 1 << 2,
   FWL_BCDATTRIBUTE_DATALENGTH = 1 << 3,
   FWL_BCDATTRIBUTE_CALCHECKSUM = 1 << 4,
   FWL_BCDATTRIBUTE_PRINTCHECKSUM = 1 << 5,
   FWL_BCDATTRIBUTE_TEXTLOCATION = 1 << 6,
@@ skipping 27 matching lines @@
  public:
   static IFWL_Barcode* Create(const CFWL_WidgetImpProperties& properties);
   void SetType(BC_TYPE type);
   FX_BOOL IsProtectedType();
 
  protected:
   IFWL_Barcode();
 };
 
 #endif  // XFA_FWL_BASEWIDGET_IFWL_BARCODE_H_