Adds PnoScanMetrics to wifi.proto

  // Counts the number of AllSingleScanLister.onResult calls with a partial (channels) scan result

  optional int32 partial_all_single_scan_listener_results = 75;

  // Pno scan metrics

  optional PnoScanMetrics pno_scan_metrics = 76;

}

// Information that gets logged for every WiFi connection.

  // Number of scan results with num_connectable_networks

  optional int32 count = 2 [default = 0];

}

// Pno scan metrics

// Here "Pno Scan" refers to the session of offloaded scans, these metrics count the result of a

// single session, and not the individual scans within that session.

message PnoScanMetrics {

  // Total number of attempts to offload pno scans

  optional int32 num_pno_scan_attempts = 1;

  // Total number of pno scans failed

  optional int32 num_pno_scan_failed = 2;

  // Number of pno scans started successfully over offload

  optional int32 num_pno_scan_started_over_offload = 3;

  // Number of pno scans failed over offload

  optional int32 num_pno_scan_failed_over_offload = 4;

  // Total number of pno scans that found any network

  optional int32 num_pno_found_network_events = 5;

}