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

third_party/lzma/v4_65/files/CPP/Windows/FileMapping.h

-// Windows/FileMapping.h
-
-#ifndef __WINDOWS_FILEMAPPING_H
-#define __WINDOWS_FILEMAPPING_H
-
-#include "Windows/Handle.h"
-#include "Windows/Defs.h"
-
-namespace NWindows {
-// namespace NFile {
-// namespace NMapping {
-
-class CFileMapping: public CHandle
-{
-public:
-  bool Create(HANDLE file, LPSECURITY_ATTRIBUTES attributes,
-    DWORD protect, UINT64 maximumSize, LPCTSTR name)
-  {
-    _handle = ::CreateFileMapping(file, attributes,
-      protect, DWORD(maximumSize >> 32), DWORD(maximumSize), name);
-    return (_handle != NULL);
-  }
-
-  bool Open(DWORD desiredAccess, bool inheritHandle, LPCTSTR name)
-  {
-    _handle = ::OpenFileMapping(desiredAccess, BoolToBOOL(inheritHandle), name);
-    return (_handle != NULL);
-  }
-
-  LPVOID MapViewOfFile(DWORD desiredAccess, UINT64 fileOffset,
-      SIZE_T numberOfBytesToMap)
-  {
-    return ::MapViewOfFile(_handle, desiredAccess,
-        DWORD(fileOffset >> 32), DWORD(fileOffset), numberOfBytesToMap);
-  }
-
-  LPVOID MapViewOfFileEx(DWORD desiredAccess, UINT64 fileOffset,
-      SIZE_T numberOfBytesToMap, LPVOID baseAddress)
-  {
-    return ::MapViewOfFileEx(_handle, desiredAccess,
-      DWORD(fileOffset >> 32), DWORD(fileOffset),
-      numberOfBytesToMap, baseAddress);
-  }
-  
-
-};
-
-}
-
-#endif