AddWtsTerminalObserver  439 remoting/host/desktop_session_win.cc   monitor_->AddWtsTerminalObserver(terminal_id, this);
AddWtsTerminalObserver   40 remoting/host/win/host_service.h   virtual bool AddWtsTerminalObserver(const std::string& terminal_id,
AddWtsTerminalObserver   34 remoting/host/win/wts_terminal_monitor.h   virtual bool AddWtsTerminalObserver(const std::string& terminal_id,