test/trace_processor/oom_kill.textproto

packet {
  process_tree {
    processes {
      pid: 1000
      ppid: 1
      cmdline: "com.google.android.gm"
    }
    threads {
      tid: 1001
      tgid: 1000
    }
  }
}
packet {
  ftrace_events {
    cpu: 4
    event {
      timestamp: 1234
      pid: 4321
      mark_victim {
        pid: 1001
      }
    }
  }
}