Make more concrete stream classes private to .cpp files

core/fxcrt/extension.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_EXTENSION_H_
 #define CORE_FXCRT_EXTENSION_H_
 
 #include <algorithm>
@@ skipping 16 matching lines @@
   virtual size_t Read(void* pBuffer, size_t szBuffer) = 0;
   virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
   virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
   virtual size_t WritePos(const void* pBuffer,
                           size_t szBuffer,
                           FX_FILESIZE pos) = 0;
   virtual bool Flush() = 0;
   virtual bool Truncate(FX_FILESIZE szFile) = 0;
 };
 
-#ifdef PDF_ENABLE_XFA
-class CFX_CRTFileAccess : public IFX_FileAccess {
- public:
-  CFX_CRTFileAccess();
-  ~CFX_CRTFileAccess() override;
-
-  // IFX_FileAccess
-  void Release() override;
-  IFX_FileAccess* Retain() override;
-  void GetPath(CFX_WideString& wsPath) override;
-  IFX_SeekableStream* CreateFileStream(uint32_t dwModes) override;
-
-  bool Init(const CFX_WideStringC& wsPath);
-
- protected:
-  CFX_WideString m_path;
-  uint32_t m_RefCount;
-};
-#endif  // PDF_ENABLE_XFA
-
-class CFX_CRTFileStream final : public IFX_SeekableStream {
- public:
-  explicit CFX_CRTFileStream(std::unique_ptr<IFXCRT_FileAccess> pFA);
-  ~CFX_CRTFileStream() override;
-
-  // IFX_SeekableStream:
-  IFX_SeekableStream* Retain() override;
-  void Release() override;
-  FX_FILESIZE GetSize() override;
-  bool IsEOF() override;
-  FX_FILESIZE GetPosition() override;
-  bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
-  size_t ReadBlock(void* buffer, size_t size) override;
-  bool WriteBlock(const void* buffer, FX_FILESIZE offset, size_t size) override;
-  bool Flush() override;
-
- protected:
-  std::unique_ptr<IFXCRT_FileAccess> m_pFile;
-  uint32_t m_dwCount;
-};
-
-#define FX_MEMSTREAM_BlockSize (64 * 1024)
-#define FX_MEMSTREAM_Consecutive 0x01
-#define FX_MEMSTREAM_TakeOver 0x02
-
-class CFX_MemoryStream final : public IFX_MemoryStream {
- public:
-  explicit CFX_MemoryStream(bool bConsecutive);
-  CFX_MemoryStream(uint8_t* pBuffer, size_t nSize, bool bTakeOver);
-  ~CFX_MemoryStream() override;
-
-  // IFX_MemoryStream
-  IFX_SeekableStream* Retain() override;
-  void Release() override;
-  FX_FILESIZE GetSize() override;
-  bool IsEOF() override;
-  FX_FILESIZE GetPosition() override;
-  bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
-  size_t ReadBlock(void* buffer, size_t size) override;
-  bool WriteBlock(const void* buffer, FX_FILESIZE offset, size_t size) override;
-  bool Flush() override;
-  bool IsConsecutive() const override;
-  void EstimateSize(size_t nInitSize, size_t nGrowSize) override;
-  uint8_t* GetBuffer() const override;
-  void AttachBuffer(uint8_t* pBuffer,
-                    size_t nSize,
-                    bool bTakeOver = false) override;
-  void DetachBuffer() override;
-
- protected:
-  CFX_ArrayTemplate<uint8_t*> m_Blocks;
-  uint32_t m_dwCount;
-  size_t m_nTotalSize;
-  size_t m_nCurSize;
-  size_t m_nCurPos;
-  size_t m_nGrowSize;
-  uint32_t m_dwFlags;
-  bool ExpandBlocks(size_t size);
-};
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 #define MT_N 848
 #define MT_M 456
 #define MT_Matrix_A 0x9908b0df
 #define MT_Upper_Mask 0x80000000
 #define MT_Lower_Mask 0x7fffffff
 struct FX_MTRANDOMCONTEXT {
   FX_MTRANDOMCONTEXT() {
     mti = MT_N + 1;
     bHaveSeed = false;
   }
   uint32_t mti;
   bool bHaveSeed;
   uint32_t mt[MT_N];
 };
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 bool FX_GenerateCryptoRandom(uint32_t* pBuffer, int32_t iCount);
 #endif
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // CORE_FXCRT_EXTENSION_H_