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

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

-// Windows/Thread.h
-
-#ifndef __WINDOWS_THREAD_H
-#define __WINDOWS_THREAD_H
-
-#include "Defs.h"
-
-extern "C"
-{
-#include "../../C/Threads.h"
-}
-
-namespace NWindows {
-
-class CThread
-{
-  ::CThread thread;
-public:
-  CThread() { Thread_Construct(&thread); }
-  ~CThread() { Close(); }
-  bool IsCreated() { return Thread_WasCreated(&thread) != 0; }
-  WRes Close()  { return Thread_Close(&thread); }
-  WRes Create(THREAD_FUNC_RET_TYPE (THREAD_FUNC_CALL_TYPE *startAddress)(void *), LPVOID parameter)
-    { return Thread_Create(&thread, startAddress, parameter); }
-  WRes Wait() { return Thread_Wait(&thread); }
-  
-  #ifdef _WIN32
-  operator HANDLE() { return thread.handle; }
-  void Attach(HANDLE handle) { thread.handle = handle; }
-  HANDLE Detach() { HANDLE h = thread.handle; thread.handle = NULL; return h; }
-  DWORD Resume() { return ::ResumeThread(thread.handle); }
-  DWORD Suspend() { return ::SuspendThread(thread.handle); }
-  bool Terminate(DWORD exitCode) { return BOOLToBool(::TerminateThread(thread.handle, exitCode)); }
-  int GetPriority() { return ::GetThreadPriority(thread.handle); }
-  bool SetPriority(int priority) { return BOOLToBool(::SetThreadPriority(thread.handle, priority)); }
-  #endif
-};
-
-}
-
-#endif