Remove FX_DWORD from XFA, part 2

xfa/fxfa/fm2js/xfa_error.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_FXFA_FM2JS_XFA_ERROR_H_
 #define XFA_FXFA_FM2JS_XFA_ERROR_H_
 
 #include "core/fxcrt/include/fx_string.h"
 #include "core/fxcrt/include/fx_system.h"
 
 enum XFA_FM_ERRMSG {
   FMERR_UNSUPPORTED_CHAR,
   FMERR_BAD_SUFFIX_NUMBER,
   FMERR_INVALIDATE_CHAR,
   FMERR_EXPECTED_IDENTIFIER,
   FMERR_EXPECTED_TOKEN,
   FMERR_EXPECTED_IFEND,
   FMERR_UNEXPECTED_EXPRESSION,
   FMERR_EXPTECTED_OPERATOR,
   FMERR_EXPECTED_NON_EMPTY_EXPRESSION,
   FMERR_MAXIMUM
 };
 
 class CXFA_FMErrorInfo {
  public:
   CXFA_FMErrorInfo() : linenum(0) {}
   ~CXFA_FMErrorInfo() {}
-  FX_DWORD linenum;
+  uint32_t linenum;
   CFX_WideString message;
 };
 const FX_WCHAR* XFA_FM_ErrorMsg(XFA_FM_ERRMSG msg);
 
 #endif  // XFA_FXFA_FM2JS_XFA_ERROR_H_