Merge "wifi.proto: Add link probe event to StaEvent" into qt-dev am: a3ef6c2d

    // The NetworkAgent Wifi usability score has changed in a way that may

    // impact connectivity

    TYPE_WIFI_USABILITY_SCORE_BREACH = 20;

    // Link probe was performed

    TYPE_LINK_PROBE = 21;

  }

  enum FrameworkDisconnectReason {

  // Prediction horizon (in second) of Wifi usability score provided by external

  // system app

  optional int32 last_prediction_horizon_sec = 16 [default = -1];

  // Only valid if event type == TYPE_LINK_PROBE.

  // true if link probe succeeded, false otherwise.

  optional bool link_probe_was_success = 17;

  // Only valid if event type == TYPE_LINK_PROBE and link_probe_was_success == true.

  // Elapsed time, in milliseconds, of a successful link probe.

  optional int32 link_probe_success_elapsed_time_ms = 18;

  // Only valid if event type == TYPE_LINK_PROBE and link_probe_was_success == false.

  // Failure reason for an unsuccessful link probe.

  optional LinkProbeStats.LinkProbeFailureReason link_probe_failure_reason = 19;

}

// Wi-Fi Aware metrics