test/trace_processor/graphics/gpu_frequency_metric.textproto

packet {
  ftrace_events {
    cpu: 0
    event {
      timestamp: 200001000000
      pid: 527
      gpu_frequency {
        gpu_id: 0
        state: 585000
      }
    }
    event {
      timestamp: 200002000000
      pid: 527
      gpu_frequency {
        gpu_id: 1
        state: 400000
      }
    }
    event {
      timestamp: 200003000000
      pid: 527
      gpu_frequency {
        gpu_id: 0
        state: 0
      }
    }
    event {
      timestamp: 200004000000
      pid: 527
      gpu_frequency {
        gpu_id: 0
        state: 603000
      }
    }
    event {
      timestamp: 200005000000
      pid: 527
      gpu_frequency {
        gpu_id: 1
        state: 758000
      }
    }
    event {
      timestamp: 200005999999
      pid: 527
      gpu_frequency {
        gpu_id: 0
        state: 603000
      }
    }
  }
  trusted_uid: 9999
  trusted_packet_sequence_id: 2
}