Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/Common/C_FileIO.h

-// Common/C_FileIO.h
-
-#ifndef __COMMON_C_FILEIO_H
-#define __COMMON_C_FILEIO_H
-
-#include <stdio.h>
-#include <sys/types.h>
-
-#include "Types.h"
-#include "MyWindows.h"
-
-namespace NC {
-namespace NFile {
-namespace NIO {
-
-class CFileBase
-{
-protected:
-  int _handle;
-  bool OpenBinary(const char *name, int flags);
-public:
-  CFileBase(): _handle(-1) {};
-  ~CFileBase() { Close(); }
-  bool Close();
-  bool GetLength(UInt64 &length) const;
-  off_t Seek(off_t distanceToMove, int moveMethod) const;
-};
-
-class CInFile: public CFileBase
-{
-public:
-  bool Open(const char *name);
-  bool OpenShared(const char *name, bool shareForWrite);
-  ssize_t Read(void *data, size_t size);
-};
-
-class COutFile: public CFileBase
-{
-public:
-  bool Create(const char *name, bool createAlways);
-  bool Open(const char *name, DWORD creationDisposition);
-  ssize_t Write(const void *data, size_t size);
-};
-
-}}}
-
-#endif