Remove FX_DWORD from core/ and delete definition

core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h

 // Copyright 2016 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_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_ACC_H_
 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_ACC_H_
 
 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h"
 #include "core/fxcrt/include/fx_string.h"
 #include "core/fxcrt/include/fx_system.h"
 
 class CPDF_StreamAcc {
  public:
   CPDF_StreamAcc();
   ~CPDF_StreamAcc();
 
   void LoadAllData(const CPDF_Stream* pStream,
                    FX_BOOL bRawAccess = FALSE,
-                   FX_DWORD estimated_size = 0,
+                   uint32_t estimated_size = 0,
                    FX_BOOL bImageAcc = FALSE);
 
   const CPDF_Stream* GetStream() const { return m_pStream; }
   CPDF_Dictionary* GetDict() const {
     return m_pStream ? m_pStream->GetDict() : nullptr;
   }
 
   const uint8_t* GetData() const;
-  FX_DWORD GetSize() const;
+  uint32_t GetSize() const;
   const CFX_ByteString& GetImageDecoder() const { return m_ImageDecoder; }
   const CPDF_Dictionary* GetImageParam() const { return m_pImageParam; }
   uint8_t* DetachData();
 
  protected:
   uint8_t* m_pData;
-  FX_DWORD m_dwSize;
+  uint32_t m_dwSize;
   FX_BOOL m_bNewBuf;
   CFX_ByteString m_ImageDecoder;
   CPDF_Dictionary* m_pImageParam;
   const CPDF_Stream* m_pStream;
   uint8_t* m_pSrcData;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_ACC_H_