tools/metrics/histograms/metadata/account_manager/histograms.xml

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<histogram-configuration>

<histograms>

<histogram name="AccountManager.AccountAdditionResultStatus"
    enum="AccountManagerAccountAdditionResultStatus" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Records the result of in-session account addition (or re-authentication)
    triggers on Chrome OS. This is recorded whenever an in-session account
    addition (or re-authentication) is triggered and user finishes or cancels
    the flow.
  </summary>
</histogram>

<histogram name="AccountManager.AccountAdditionSource"
    enum="AccountManagerAccountAdditionSource" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Records the source of in-session account addition (or re-authentication)
    triggers on Chrome OS. This is recorded whenever an in-session account
    addition (or re-authentication) is triggered - either explicitely by the
    user, or automatically by Gaia (for accounts requiring immediate
    re-authentication).
  </summary>
</histogram>

<histogram name="AccountManager.EduCoexistence.FetchAccessTokenResult"
    enum="GoogleServiceAuthError" expires_after="2023-10-31">
  <owner>agawronska@chromium.org</owner>
  <owner>cros-families-eng@google.com</owner>
  <summary>
    The result of fetching an access token for the child with `accounts.reauth`
    scope in secondary EDU account addition flow. Recorded after parent enters
    their password. This metric covers both v1 and v2 of EduCoexistence.
  </summary>
</histogram>

<histogram name="AccountManager.EduCoexistenceV2.InSessionFlowResult"
    enum="EduCoexistenceFlowV2Result" expires_after="2023-10-31">
  <owner>agawronska@chromium.org</owner>
  <owner>danan@chromium.org</owner>
  <owner>yilkal@chromium.org</owner>
  <owner>cros-families-eng@google.com</owner>
  <summary>
    Records the last completed step in the EDU account addition flow. Allows to
    track the drop rate by important states during the in session flow.
  </summary>
</histogram>

<histogram name="AccountManager.EduCoexistenceV2.OnboardingFlowResult"
    enum="EduCoexistenceFlowV2Result" expires_after="2023-10-31">
  <owner>agawronska@chromium.org</owner>
  <owner>danan@chromium.org</owner>
  <owner>yilkal@chromium.org</owner>
  <owner>cros-families-eng@google.com</owner>
  <summary>
    Records the last completed step in the EDU account addition flow. Allows to
    track the drop rate by important states during onboarding.
  </summary>
</histogram>

<histogram name="AccountManager.FacadeGetAccountsMojoStatus"
    enum="AccountManagerFacadeMojoStatus" expires_after="2023-10-31">
  <owner>anastasiian@chromium.org</owner>
  <owner>droger@chromium.org</owner>
  <owner>chrome-signin-team@google.com</owner>
  <summary>
    Records the status of the mojo connection between the Ash account manager
    and the Lacros account manager facade, when
    `AccountManagerFacade::GetAccounts()` is called. See
    https://crbug.com/1287297
  </summary>
</histogram>

<histogram name="AccountManager.InitializationTime" units="microseconds"
    expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Measures the time taken to fully initialize Chrome OS Account Manager. This
    is recorded once per user session, at login time. This metric only reports
    from Chrome OS, which has a high resolution clock.
  </summary>
</histogram>

<histogram name="AccountManager.ManageAccountsServiceType"
    enum="GaiaServiceType" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Tracks the service type received with the mirror response header.
  </summary>
</histogram>

<histogram name="AccountManager.MojoDisconnections.AccessTokenFetcherRemote"
    units="count" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Tracks the number of Mojo pipe disconnections observed by the access token
    fetcher Mojo remote in `AccountManagerFacadeImpl`. This is logged at the end
    of the destruction of `AccountManagerFacadeImpl::AccessTokenFetcher`. This
    will correspond to the end of an access token fetch request. This is logged
    for Ash - ChromeOS and Lacros - ChromeOS.
  </summary>
</histogram>

<histogram
    name="AccountManager.MojoDisconnections.AccountManagerObserverReceiver"
    units="count" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Tracks the number of Mojo pipe disconnections observed by the
    `AccountManagerObserver` Mojo receiver in `AccountManagerFacadeImpl`. This
    is logged at the end of the destruction of `AccountManagerFacadeImpl`. Since
    `AccountManagerFacadeImpl` is a singleton, this is logged once per session
    (Per browser session for Lacros and per user session for Ash). This is
    logged for Ash - ChromeOS and Lacros - ChromeOS.
  </summary>
</histogram>

<histogram name="AccountManager.MojoDisconnections.AccountManagerRemote"
    units="count" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Tracks the number of Mojo pipe disconnections observed by the Account
    Manager Mojo remote in `AccountManagerFacadeImpl`. This is logged at the end
    of the destruction of `AccountManagerFacadeImpl`. Since
    `AccountManagerFacadeImpl` is a singleton, this is logged once per session
    (Per browser session for Lacros and per user session for Ash). This is
    logged for Ash - ChromeOS and Lacros - ChromeOS.
  </summary>
</histogram>

<histogram name="AccountManager.NumAccounts" units="count"
    expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Tracks the number of accounts stored in Chrome OS Account Manager by a given
    user. This is recorded only once per session, at login time.
  </summary>
</histogram>

<histogram name="AccountManager.ReportAuthError.IsAccountKeyEmpty"
    enum="BooleanEmpty" expires_after="2023-12-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Indicates if the account whose authentication error is being reported to
    AccountManagerMojoService has an empty account id. This is recorded whenever
    AccountManagerMojoService receives a notification for an authentication
    error for an account.

    This histogram will be used to decide the severity of
    AccountManagerMojoService receiving malformed account ids.
  </summary>
</histogram>

<histogram name="AccountManager.TokenLoadStatus"
    enum="AccountManagerTokenLoadStatus" expires_after="2023-10-31">
  <owner>sinhak@chromium.org</owner>
  <owner>anastasiian@chromium.org</owner>
  <summary>
    Tracks the status of token loads from disk by Chrome OS Account Manager, for
    a given user. This is recorded only once per session, at login time.
  </summary>
</histogram>

</histograms>

</histogram-configuration>