Remove FX_DWORD from core/ and delete definition

core/fpdfapi/fpdf_parser/include/ipdf_data_avail.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_IPDF_DATA_AVAIL_H_
 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_IPDF_DATA_AVAIL_H_
 
 #include "core/fxcrt/include/fx_stream.h"
@@ skipping 28 matching lines @@
   enum DocFormStatus {
     FormError = -1,        // PDF_FORM_ERROR
     FormNotAvailable = 0,  // PDF_FORM_NOTAVAIL
     FormAvailable = 1,     // PDF_FORM_AVAIL
     FormNotExist = 2,      // PDF_FORM_NOTEXIST
   };
 
   class FileAvail {
    public:
     virtual ~FileAvail();
-    virtual FX_BOOL IsDataAvail(FX_FILESIZE offset, FX_DWORD size) = 0;
+    virtual FX_BOOL IsDataAvail(FX_FILESIZE offset, uint32_t size) = 0;
   };
 
   class DownloadHints {
    public:
     virtual ~DownloadHints();
-    virtual void AddSegment(FX_FILESIZE offset, FX_DWORD size) = 0;
+    virtual void AddSegment(FX_FILESIZE offset, uint32_t size) = 0;
   };
 
   static IPDF_DataAvail* Create(FileAvail* pFileAvail, IFX_FileRead* pFileRead);
   virtual ~IPDF_DataAvail();
 
   FileAvail* GetFileAvail() const { return m_pFileAvail; }
   IFX_FileRead* GetFileRead() const { return m_pFileRead; }
 
   virtual DocAvailStatus IsDocAvail(DownloadHints* pHints) = 0;
   virtual void SetDocument(CPDF_Document* pDoc) = 0;
   virtual DocAvailStatus IsPageAvail(int iPage, DownloadHints* pHints) = 0;
   virtual FX_BOOL IsLinearized() = 0;
   virtual DocFormStatus IsFormAvail(DownloadHints* pHints) = 0;
   virtual DocLinearizationStatus IsLinearizedPDF() = 0;
   virtual void GetLinearizedMainXRefInfo(FX_FILESIZE* pPos,
-                                         FX_DWORD* pSize) = 0;
+                                         uint32_t* pSize) = 0;
 
  protected:
   IPDF_DataAvail(FileAvail* pFileAvail, IFX_FileRead* pFileRead);
 
   FileAvail* m_pFileAvail;
   IFX_FileRead* m_pFileRead;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_IPDF_DATA_AVAIL_H_