tools/metrics/histograms/histograms_xml/bluetooth/histograms.xml

<!--
Copyright 2020 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<!--
This file is used to generate a comprehensive list of Bluetooth histograms
along with a detailed description for each histogram.

For best practices on writing histogram descriptions, see
https://chromium.googlesource.com/chromium/src.git/+/HEAD/tools/metrics/histograms/README.md

Please send CLs to chromium-metrics-reviews@google.com rather than to specific
individuals. These CLs will be automatically reassigned to a reviewer within
about 5 minutes. This approach helps the metrics team to load-balance incoming
reviews. Googlers can read more about this at go/gwsq-gerrit.
-->

<histogram-configuration>

<histograms>

<histogram name="Bluetooth.Android.GATTConnection.Disconnected.Result"
    enum="AndroidGATTConnectionErrorCodes" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Disconnected GATT connection status codes. Used to better understand errors
    seen in Android.
  </summary>
</histogram>

<histogram name="Bluetooth.Android.GATTConnection.Failure.Result"
    enum="AndroidGATTConnectionErrorCodes" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Failed GATT connection error codes. Used to better understand errors seen in
    Android.
  </summary>
</histogram>

<histogram name="Bluetooth.Android.GATTConnection.Success.Result"
    enum="AndroidGATTConnectionErrorCodes" expires_after="2021-05-02">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Successful GATT connection result codes. Used to better understand Android
    results.
  </summary>
</histogram>

<histogram name="Bluetooth.Availability.v2" enum="BluetoothAvailability"
    expires_after="2021-12-31">
  <owner>kenrb@chromium.org</owner>
  <owner>kpaulhamus@chromium.org</owner>
  <summary>
    Determines the availability and capabilities of the Bluetooth driver. This
    metric is logged on startup.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.DeviceSelectionDuration" units="ms"
    expires_after="2021-03-05">
<!-- Name completed by histogram_suffixes name="BluetoothUISurfaces",
     name="BluetoothPairingStates", and name="BluetoothTransportTypes" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Records how long it takes for the user to select a device either after they
    open the UI and Bluetooth is on, or after Bluetooth turns on while the UI is
    open.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.Pairing.Duration.Failure" units="ms"
    expires_after="2021-03-05">
<!-- Name completed by histogram_suffixes name="BluetoothTransportTypes" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Records how long it takes for a failed pairing attempt, initiated from
    Bluetooth Settings or System Tray, to finish. If the user needed to go
    through an auth process during pairing, the time the user took to confirm
    that is not included.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.Pairing.Duration.Success" units="ms"
    expires_after="2021-03-05">
<!-- Name completed by histogram_suffixes name="BluetoothTransportTypes" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Records how long it takes for a successful pairing attempt, initiated from
    Bluetooth Settings or System Tray, to finish. If the user needed to go
    through an auth process during pairing, the time the user took to confirm
    that is not included.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.Pairing.Result" enum="BooleanSuccess"
    expires_after="2021-05-09">
<!-- Name completed by histogram_suffixes name="BluetoothTransportTypes" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Records success or failure of a pairing attempt (initiated in the UI) to a
    peripheral after the user taps that device in the list of discovered
    peripherals in Bluetooth Settings or System Tray.

    Suffixed by Bluetooth transport type. View the base histogram to see results
    for all transport types aggregated together, and suffixed histograms for the
    results of just that particular transport type.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.Pairing.Result.FailureReason"
    enum="BluetoothConnectionFailureReason" expires_after="2021-03-05">
<!-- Name completed by histogram_suffixes name="BluetoothTransportTypes" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Breaks down why a pairing attempt to a peripheral failed (see
    'Bluetooth.ChromeOS.Pairing.Result').

    Suffixed by Bluetooth transport type. View the base histogram to see results
    for all transport types aggregated together, and suffixed histograms for the
    results of just that particular transport type.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.Pairing.TransportType"
    enum="BluetoothTransportType" expires_after="2021-03-05">
  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    An enumerated histogram which captures the transport type of devices which
    are paired with. Reports of transport types other than classic, BLE, or dual
    should be considered concerning and investigated.
  </summary>
</histogram>

<histogram name="Bluetooth.ChromeOS.UserInitiatedReconnectionAttempt.Result"
    enum="BooleanSuccess" expires_after="2021-05-09">
<!-- Name completed by histogram_suffixes name="BluetoothUISurfaces" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Records success or failure of a reconnection attempt to an already paired
    peripheral after the user taps that device in the list of peripherals in
    Bluetooth Settings or System Tray. Explicitly excludes automatic
    reconnection attempts initiated by Chrome OS.

    Suffixed by Bluetooth UI surface. View the base histogram to see results for
    all UI surfaces aggregated together, and suffixed histograms for the results
    of just that particular UI surfaces.
  </summary>
</histogram>

<histogram
    name="Bluetooth.ChromeOS.UserInitiatedReconnectionAttempt.Result.FailureReason"
    enum="BluetoothConnectionFailureReason" expires_after="2021-03-05">
<!-- Name completed by histogram_suffixes name="BluetoothUISurfaces" -->

  <owner>hansberry@chromium.org</owner>
  <owner>cros-system-services-networking@google.com</owner>
  <summary>
    Breaks down why a user-initiated reconnection attempt to a peripheral failed
    (see 'Bluetooth.ChromeOS.UserInitiatedReconnectionAttempt.Result').

    Suffixed by Bluetooth UI surface. View the base histogram to see results for
    all UI surfaces aggregated together, and suffixed histograms for the results
    of just that particular UI surfaces.
  </summary>
</histogram>

<histogram name="Bluetooth.ConnectedDeviceCount" units="devices"
    expires_after="2021-05-16">
  <owner>adlr@chromium.org</owner>
  <summary>
    Counts the number of simulataneously connected Bluetooth devices. Used to
    direct testing efforts, and by our UI team to determine appropriate UI
    sizes.
  </summary>
</histogram>

<histogram name="Bluetooth.DiscoverySession.Start.Outcome"
    enum="BluetoothDiscoveryOutcomes" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of calls to BluetoothAdapter::StartDiscoverySession.
    Used to prioritize efforts to fix failures of this function.
  </summary>
</histogram>

<histogram name="Bluetooth.DiscoverySession.Stop.Outcome"
    enum="BluetoothDiscoveryOutcomes" expires_after="2021-03-01">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of calls to BluetoothDiscoverySession::Stop. Used to
    prioritize efforts to fix failures of this function.
  </summary>
</histogram>

<histogram name="Bluetooth.Linux.ConnectToServiceInsecurelyResult"
    enum="BluetoothAdapterConnectToServiceInsecurelyResult"
    expires_after="2022-01-01">
  <owner>alainm@chromium.org</owner>
  <owner>nearby-share-chromeos-eng@google.com</owner>
  <summary>
    Result of attempting a call to mojom::Adapter::ConnectToServiceInsecurely().
    Emitted when function completes.
  </summary>
</histogram>

<histogram base="true" name="Bluetooth.MacOS.Errors"
    enum="MacOSBluetoothOperationsResult" expires_after="2021-01-31">
<!-- Name completed by histogram_suffixes name="WebBluetoothMacOSAPIs" -->

  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how many times each macOS GATT error has occured. The results will
    be used to determine how commun this errors are and if we need to provide
    better error messages to the users.
  </summary>
</histogram>

<histogram name="Bluetooth.PairingMethod" enum="BluetoothPairingMethod"
    expires_after="2020-11-08">
  <owner>adlr@chromium.org</owner>
  <summary>
    Records the method used to pair each Bluetooth Device. Used to direct our
    testing efforts.
  </summary>
</histogram>

<histogram name="Bluetooth.PairingResult" enum="BluetoothPairingResult"
    expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>adlr@chromium.org</owner>
  <summary>
    Records the result of pairing each Bluetooth Device. Used to understand
    whether we are having significant problems with Bluetooth pairing and seeing
    errors more commonly than we should.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.Android" enum="AndroidGATTStatusResult"
    expires_after="2021-01-31">
<!-- Name completed by histogram_suffixes name="AndroidGATTEvents" -->

  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>'status' values returned by Android GATT event.</summary>
</histogram>

<histogram name="Bluetooth.Web.Blocklist.ParsedNonEmptyString"
    enum="BooleanSuccess" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the result of BluetoothBlocklist::Add parsing a non-empty string.
    These strings will be updated dynamically by a server, and this histogram
    provides feedback that parsing is functioning correctly on clients.

    False values are BAD, a blocklist is failing to be applied correctly.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.Characteristic.ReadValue.Outcome"
    enum="WebBluetoothGATTOperationOutcome" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to characteristic.readValue(). Used to know
    what types of errors users are seeing. The results will be used to determine
    how common these errors are and if we need to provide better error messages
    to the users.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.Characteristic.StartNotifications.Outcome"
    enum="WebBluetoothGATTOperationOutcome" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to characteristic.startNofications(). Used to
    know what types of errors users are seeing. The results will be used to
    determine how common these errors are and if we need to provide better error
    messages to the users.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.Characteristic.WriteValue.Outcome"
    enum="WebBluetoothGATTOperationOutcome" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to characteristic.writeValue(). Used to know
    what types of errors users are seeing. The results will be used to determine
    how common these errors are and if we need to provide better error messages
    to the users.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.ChooserInteraction" enum="BooleanInvalid"
    expires_after="2021-05-16">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Counts how many times users interact with a regular chooser vs. an invalid
    chooser. (A chooser is invalid when it's event handler becomes null.)
  </summary>
</histogram>

<histogram name="Bluetooth.Web.ConnectGATT.Outcome"
    enum="WebBluetoothConnectGATTOutcome" expires_after="2021-05-16">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the result of a device.gatt.connect() call. Used to understand what
    errors developers are getting so we can target efforts toward the most
    common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.ConnectGATT.TimeFailed" units="ms"
    expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how long it takes for a connection attempt to fail. Use to let
    developers know how to better wait for and handle connection errors.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.ConnectGATT.TimeSuccess" units="ms"
    expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how long it takes for a device to successfully connect. Use to let
    developers know how long it should take to connect to a BLE device.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.Descriptor.ReadValue.Outcome"
    enum="WebBluetoothGATTOperationOutcome" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to descriptor.readValue(). Used to know what
    types of errors users are seeing. The results will be used to determine how
    common these errors are and if we need to provide better error messages to
    the users.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.Descriptor.WriteValue.Outcome"
    enum="WebBluetoothGATTOperationOutcome" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to descriptor.writeValue(). Used to know what
    types of errors users are seeing. The results will be used to determine how
    common these errors are and if we need to provide better error messages to
    the users.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetCharacteristic.Characteristic"
    enum="GATTCharacteristicHash" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the UUIDs used when getting a characteristic. The recorded value is
    a 31-bit hash of the UUID. Used to know what types of characteristics to
    target when building libraries that use the Web Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetCharacteristic.Outcome"
    enum="WebBluetoothGetCharacteristicOutcome" expires_after="2021-01-31">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to getCharacteristic(). Used to understand
    what errors developers are getting so we can target efforts toward the most
    common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetCharacteristics.Characteristic"
    enum="GATTCharacteristicHash" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the UUIDs used when getting characteristics. The recorded value is a
    31-bit hash of the UUID. Used to know what types of characteristics to
    target when building libraries that use the Web Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetCharacteristics.Outcome"
    enum="WebBluetoothGetCharacteristicOutcome" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to getCharacteristics(). Used to understand
    what errors developers are getting so we can target efforts toward the most
    common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetDescriptor.Descriptor"
    enum="GATTDescriptorHash" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the UUIDs used when getting a descriptor. The recorded value is a
    31-bit hash of the UUID. Used to know what types of descriptors to target
    when building libraries that use the Web Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetDescriptor.Outcome"
    enum="WebBluetoothGetDescriptorOutcome" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to getDescriptor(). Used to understand what
    errors developers are getting so we can target efforts toward the most
    common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetDescriptors.Descriptor"
    enum="GATTDescriptorHash" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the UUIDs used when getting descriptors. The recorded value is a
    31-bit hash of the UUID. Used to know what types of descriptors to target
    when building libraries that use the Web Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetDescriptors.Outcome"
    enum="WebBluetoothGetDescriptorOutcome" expires_after="M85">
  <obsolete>
    Removed 2020/11/05. crbug.com/1088659
  </obsolete>
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the outcome of a call to getDescriptors(). Used to understand what
    errors developers are getting so we can target efforts toward the most
    common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetPrimaryService.Outcome"
    enum="WebBluetoothGetPrimaryServiceOutcome" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the result of a GATTServer.getPrimaryService() call. Used to
    understand what errors developers are getting so we can target efforts
    toward the most common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetPrimaryService.Services"
    enum="GATTServiceHash" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records what GATT Services are used when connected. The record value is a
    31-bit hash of the Service UUID. This will help us know if we should build
    an API for specific services rather than a general Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetPrimaryServices.Outcome"
    enum="WebBluetoothGetPrimaryServiceOutcome" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the result of a GATTServer.getPrimaryServices() call. Used to
    understand what errors developers are getting so we can target efforts
    toward the most common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.GetPrimaryServices.Services"
    enum="GATTServiceHash" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records what GATT Services are used when connected. The record value is a
    31-bit hash of the Service UUID. This will help us know if we should build
    an API for specific services rather than a general Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.Filters.Count" units="filters"
    expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how many filters are used when scanning. These results will help us
    better understand the uses of the API and make changes according to
    developers' behavior.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.Filters.Services"
    enum="GATTServiceHash" expires_after="2021-04-04">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records a 31-bit hash of the GATT Service UUIDs used when scanning. This
    will help us know if we should build an API for specific services rather
    than a general Bluetooth API.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.FilterSize" units="services"
    expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how many services are used in a filter. These results will help us
    better understand the uses of the API and make changes according to
    developers' behavior.
  </summary>
</histogram>

<histogram
    name="Bluetooth.Web.RequestDevice.NumOfDevicesInChooserWhenNotAcceptingAllDevices"
    units="devices" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    In the case of not accepting all devices, records the number of devices that
    are in the chooser when a device is paired.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.OptionalServices.Count"
    units="filters" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how many optional services are used when scanning. These results
    will help us better understand the uses of the API and make changes
    according to developers' behavior.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.OptionalServices.Services"
    enum="GATTServiceHash" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records what optional services are used. The recorded value is a 31-bit hash
    of the Service UUID. These results will help us better understand the uses
    of the API and make changes according to developers' behavior.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.Options.AcceptAllDevices"
    enum="Boolean" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the value of 'acceptAllDevices' in RequestDeviceOptions. These
    results will help us better understand the uses of the API and make changes
    according to developers' behavior.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.Outcome"
    enum="WebBluetoothRequestDeviceOutcome" expires_after="2021-05-16">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the result of a navigator.bluetooth.requestDevice() call. Used to
    understand what errors developers are getting so we can target efforts
    toward the most common ones.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.RSSISignalStrength" units="dBm"
    expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Raw RSSI values provided to chooser, before processing them for display in
    the Web Bluetooth chooser.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.RSSISignalStrengthLevel"
    enum="WebBluetoothRSSISignalStrengthLevel" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Displayed RSSI levels, after processing and as displayed to users in the Web
    Bluetooth chooser.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.ScanningDuration" units="ms"
    expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records the duration scanning for devices is run, terminated by events such
    as the chooser being closed with a selected device, cancelled, or the scan
    duration timing out.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.UnionOfServices.Count"
    units="services" expires_after="2021-01-31">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records how many services are used when scanning. This results will help us
    better understand the uses of the API and make changes according to
    developers' behavior.
  </summary>
</histogram>

<histogram name="Bluetooth.Web.RequestDevice.UnionOfServices.Services"
    enum="GATTServiceHash" expires_after="2021-06-13">
  <owner>ortuno@chromium.org</owner>
  <owner>reillyg@chromium.org</owner>
  <summary>
    Records what services are used from either required or optional sets. The
    recorded value is a 31-bit hash of the Service UUID. These results will help
    us better understand the uses of the API and make changes according to
    developers' behavior.
  </summary>
</histogram>

</histograms>

</histogram-configuration>