kUsernameMismatchExitCode   21 remoting/host/host_exit_codes.cc   { kUsernameMismatchExitCode, "USERNAME_MISMATCH" },
kUsernameMismatchExitCode   33 remoting/host/host_exit_codes.h   kMaxPermanentErrorExitCode = kUsernameMismatchExitCode
kUsernameMismatchExitCode  921 remoting/host/remoting_me2me_host.cc       ShutdownHost(kUsernameMismatchExitCode);