FILE_SYSTEM_CGROUP   70 base/file_util_linux.cc       *type = FILE_SYSTEM_CGROUP;
FILE_SYSTEM_CGROUP   56 base/process/process_linux.cc         foreground_type == FILE_SYSTEM_CGROUP &&
FILE_SYSTEM_CGROUP   57 base/process/process_linux.cc         background_type == FILE_SYSTEM_CGROUP;