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

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

-// Windows/PropVariant.h
-
-#ifndef __WINDOWS_PROPVARIANT_H
-#define __WINDOWS_PROPVARIANT_H
-
-#include "../Common/MyWindows.h"
-#include "../Common/Types.h"
-
-namespace NWindows {
-namespace NCOM {
-
-class CPropVariant : public tagPROPVARIANT
-{
-public:
-  CPropVariant() { vt = VT_EMPTY; wReserved1 = 0; }
-  ~CPropVariant() { Clear(); }
-  CPropVariant(const PROPVARIANT& varSrc);
-  CPropVariant(const CPropVariant& varSrc);
-  CPropVariant(BSTR bstrSrc);
-  CPropVariant(LPCOLESTR lpszSrc);
-  CPropVariant(bool bSrc) { vt = VT_BOOL; wReserved1 = 0; boolVal = (bSrc ? VARIANT_TRUE : VARIANT_FALSE); };
-  CPropVariant(UInt32 value) { vt = VT_UI4; wReserved1 = 0; ulVal = value; }
-  CPropVariant(UInt64 value) { vt = VT_UI8; wReserved1 = 0; uhVal = *(ULARGE_INTEGER*)&value; }
-  CPropVariant(const FILETIME &value) { vt = VT_FILETIME; wReserved1 = 0; filetime = value; }
-  CPropVariant(Int32 value) { vt = VT_I4; wReserved1 = 0; lVal = value; }
-  CPropVariant(Byte value) { vt = VT_UI1; wReserved1 = 0; bVal = value; }
-  CPropVariant(Int16 value) { vt = VT_I2; wReserved1 = 0; iVal = value; }
-  // CPropVariant(LONG value, VARTYPE vtSrc = VT_I4) { vt = vtSrc; lVal = value; }
-
-  CPropVariant& operator=(const CPropVariant& varSrc);
-  CPropVariant& operator=(const PROPVARIANT& varSrc);
-  CPropVariant& operator=(BSTR bstrSrc);
-  CPropVariant& operator=(LPCOLESTR lpszSrc);
-  CPropVariant& operator=(bool bSrc);
-  CPropVariant& operator=(UInt32 value);
-  CPropVariant& operator=(UInt64 value);
-  CPropVariant& operator=(const FILETIME &value);
-
-  CPropVariant& operator=(Int32 value);
-  CPropVariant& operator=(Byte value);
-  CPropVariant& operator=(Int16 value);
-  // CPropVariant& operator=(LONG  value);
-
-  HRESULT Clear();
-  HRESULT Copy(const PROPVARIANT* pSrc);
-  HRESULT Attach(PROPVARIANT* pSrc);
-  HRESULT Detach(PROPVARIANT* pDest);
-
-  HRESULT InternalClear();
-  void InternalCopy(const PROPVARIANT* pSrc);
-
-  int Compare(const CPropVariant &a1);
-};
-
-}}
-
-#endif