Remove FX_DWORD from core/ and delete definition

core/fxcrt/include/fx_stream.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 CORE_FXCRT_INCLUDE_FX_STREAM_H_
 #define CORE_FXCRT_INCLUDE_FX_STREAM_H_
 
 #include "core/fxcrt/include/fx_string.h"
@@ skipping 96 matching lines @@
   FX_FILESIZE GetSize() override = 0;
 
   // IFX_FileWrite:
   FX_BOOL WriteBlock(const void* buffer,
                      FX_FILESIZE offset,
                      size_t size) override = 0;
   FX_BOOL WriteBlock(const void* buffer, size_t size) override;
   FX_BOOL Flush() override = 0;
 };
 
-IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, FX_DWORD dwModes);
-IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, FX_DWORD dwModes);
+IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, uint32_t dwModes);
+IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, uint32_t dwModes);
 
 #ifdef PDF_ENABLE_XFA
 class IFX_FileAccess {
  public:
   virtual ~IFX_FileAccess() {}
   virtual void Release() = 0;
   virtual IFX_FileAccess* Retain() = 0;
   virtual void GetPath(CFX_WideString& wsPath) = 0;
-  virtual IFX_FileStream* CreateFileStream(FX_DWORD dwModes) = 0;
+  virtual IFX_FileStream* CreateFileStream(uint32_t dwModes) = 0;
 };
 IFX_FileAccess* FX_CreateDefaultFileAccess(const CFX_WideStringC& wsPath);
 #endif  // PDF_ENABLE_XFA
 
 class IFX_MemoryStream : public IFX_FileStream {
  public:
   virtual FX_BOOL IsConsecutive() const = 0;
   virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0;
   virtual uint8_t* GetBuffer() const = 0;
   virtual void AttachBuffer(uint8_t* pBuffer,
@@ skipping 15 matching lines @@
   FX_FILESIZE GetPosition() override = 0;
   size_t ReadBlock(void* buffer, size_t size) override = 0;
 
   virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0;
   virtual const uint8_t* GetBlockBuffer() = 0;
   virtual size_t GetBlockSize() = 0;
   virtual FX_FILESIZE GetBlockOffset() = 0;
 };
 
 #endif  // CORE_FXCRT_INCLUDE_FX_STREAM_H_