Remove FX_DWORD from core/ and delete definition

core/fxcodec/jbig2/JBig2_PddProc.h

 // Copyright 2015 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 CORE_FXCODEC_JBIG2_JBIG2_PDDPROC_H_
 #define CORE_FXCODEC_JBIG2_JBIG2_PDDPROC_H_
 
 #include "core/fxcrt/include/fx_system.h"
 
 class CJBig2_ArithDecoder;
 class CJBig2_BitStream;
 class CJBig2_PatternDict;
 class IFX_Pause;
 struct JBig2ArithCtx;
 
 class CJBig2_PDDProc {
  public:
   CJBig2_PatternDict* decode_Arith(CJBig2_ArithDecoder* pArithDecoder,
                                    JBig2ArithCtx* gbContext,
                                    IFX_Pause* pPause);
 
   CJBig2_PatternDict* decode_MMR(CJBig2_BitStream* pStream, IFX_Pause* pPause);
 
  public:
   FX_BOOL HDMMR;
   uint8_t HDPW;
   uint8_t HDPH;
-  FX_DWORD GRAYMAX;
+  uint32_t GRAYMAX;
   uint8_t HDTEMPLATE;
 };
 
 #endif  // CORE_FXCODEC_JBIG2_JBIG2_PDDPROC_H_