[AWARE] Metrics for Discovery + Ranging

  // total time within the logging window that aware was enabled

  optional int64 enabled_time_ms = 40;

  // maximum number of concurrent publish sessions enabling ranging in a single app

  optional int32 max_concurrent_publish_with_ranging_in_app = 41;

  // maximum number of concurrent subscribe sessions specifying a geofence in a single app

  optional int32 max_concurrent_subscribe_with_ranging_in_app = 42;

  // maximum number of concurrent publish sessions enabling ranging in the system

  optional int32 max_concurrent_publish_with_ranging_in_system = 43;

  // maximum number of concurrent subscribe sessions specifying a geofence in the system

  optional int32 max_concurrent_subscribe_with_ranging_in_system = 44;

  // histogram of subscribe session geofence minimum (only when specified)

  repeated HistogramBucket histogram_subscribe_geofence_min = 45;

  // histogram of subscribe session geofence maximum (only when specified)

  repeated HistogramBucket histogram_subscribe_geofence_max = 46;

  // total number of subscribe sessions which enabled ranging

  optional int32 num_subscribes_with_ranging = 47;

  // total number of matches (service discovery indication) with ranging provided

  optional int32 num_matches_with_ranging = 48;

  // total number of matches (service discovery indication) for service discovery with ranging

  // enabled which did not trigger ranging

  optional int32 num_matches_without_ranging_for_ranging_enabled_subscribes = 49;

  // Histogram bucket for Wi-Fi Aware logs. Range is [start, end)

  message HistogramBucket {

    // lower range of the bucket (inclusive)