test/trace_processor/track_event/track_event_instant.textproto

# Sequence 1 defaults to track for "t1".
packet {
  trusted_packet_sequence_id: 1
  timestamp: 0
  incremental_state_cleared: true
  track_descriptor {
    uuid: 1
    thread {
      pid: 5
      tid: 1
      thread_name: "t1"
    }
  }
  trace_packet_defaults {
    track_event_defaults {
      track_uuid: 1
    }
  }
}
packet {
  trusted_packet_sequence_id: 1
  timestamp: 1000
  track_event {
    categories: "cat"
    name: "instant_on_t1"
    type: 3
  }
}
packet {
  trusted_packet_sequence_id: 1
  timestamp: 2000
  track_event {
    categories: "cat"
    name: "legacy_instant_on_t1"
    legacy_event {
      phase: 73               # 'I'
    }
  }
}
packet {
  trusted_packet_sequence_id: 1
  timestamp: 3000
  track_event {
    categories: "cat"
    name: "legacy_mark_on_t1"
    legacy_event {
      phase: 82               # 'R'
    }
  }
}