rsesek@chromium.org src/components/permissions/PERMISSIONS_OWNERS The observance of external protocol schemes that are denied or allowed by default built-in lists, enterprise policy, or user preference. The kAllowedDefaultNews and kNewsNotDefault values are influenced by the PromptForExternalNewsSchemes feature. When enabled, kNewsNotDefault will be emtited with another histogram value to indicate whether it was allowed by policy, preference, or prompt. When disabled, the kAllowedDefaultNews sample will not be emitted. engedy@chromium.org ravjit@chromium.org dominickn@chromium.org meacer@chromium.org src/components/permissions/PERMISSIONS_OWNERS Whether or not the user checked the option in the external protocol dialog to remember their choice of opening or not opening the specified app. Recorded each time the user interacts with the External Protocol Dialog, when making a decision. drubery@chromium.org chrome-counter-abuse-alerts@google.com Records the scheme of an external protocol request. Only logs schemes listed among the enum ExternalProtocolScheme. This is logged once for each request to open an external protocol. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the action that a user had taken per permission prompt UI disposition. Suffixed by the UI disposition that the prompt used. Recorded when a permission prompt has been resolved. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when a permission prompt has been resolved and the permission request was made from a cross-origin iframe. Records the action that a user had taken. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a permission prompt is shown to the user which was triggered by a request made from a cross-origin frame. Records what type of type of permission header policy the top-level document defined for the accessed feature. Warning: this histogram was expired from 2025-01-09 to 2025-06-27; data may be missing. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks user interactions on permission prompts, aggregated across all UI dispositions, including quiet permission prompts due to CPSS or Crowd Deny. One sample is recorded each time a permission request triggers a prompt, even if the prompt UI is never seen by the user. This histogram does not include permission requests that are granted/denied because the user had previously made a decision; nor requests that are denied by Permission Policy, per-site permission embargo, or are cancelled while queued. The suffix of the histogram indicates which particular permission. {PermissionTypes} elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when a permission activity indicator has been shown from in the location bar. Records the indicator's state. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the time it took for the permissions prediction service to inquire the passage embeddings model during the AIv4 model execution workflow. Recorded for pages in English on which rendered text could be acquired with success and the text is considered suitable as input for the AIv4 model (i.e. it's long enough). elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the status of passage embeddings model computation for rendered_text required during the AIv4 model execution flow. Recorded for pages in English on which rendered text could be acquired with success and the text is considered suitable as input for the AIv4 model (i.e. it's long enough). elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether the passage embedder metadata was valid when the AIv4 workflow was initiated. Recorded when the PassageEmbedderDelegate attempts to retrieve the passage embedder. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether a returning passage embeddings task was outdated, i.e. a new passage embeddings task was started in the meantime. This should not happen as we try-cancel the task, but we want to be sure. Recorded for pages in English on which rendered text could be acquired with success and the text is considered suitable as input for the AIv4 model (i.e. it's long enough). elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the status of asynchronous language detection required during the AIv4 model execution flow. Recorded for all Aiv4 workflows, as detecting the pages language is the very first step. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether a passage embeddings computation task ran into the timeout. Recorded for pages in English on which rendered text could be acquired with success and the text is considered suitable as input for the AIv4 model (i.e. it's long enough). elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether there still is an ongoing execution of the passage embeddings model when we try to call it again. Recorded for pages in English on which rendered text could be acquired with success and the text is considered suitable as input for the AIv4 model (i.e. it's long enough). elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether the prediction service used hardcoded thresholds (true) or model metadata thresholds (false) for the AIv4 model. Recorded when the threshold values are set in the executor. ravjit@chromium.org src/components/permissions/PERMISSIONS_OWNERS This histogram is logged whenever the Android system level permission prompt for {SystemPermissionType} is shown after a site requesting Chrome level permissions. Records whether the system level permission was granted or denied. Permissions.Prompt.Shown is the baseline metric for this histogram. Android only. Beware that this histogram is only logged if the Android system level permission prompt is shown in the context of a site requesting a permission. In the case e.g. of notifications, Chrome also triggers an Android level permission prompt at startup, and in that case this histogram is not logged. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS For every permission request that would show a prompt to the user, this metric tracks whether the request is suppressed by embargo (and the source of that embargo), or whether there is no embargo and the prompt is shown. This is the proportion of permission prompts that the user would have seen that have been blocked due to embargo. If the (origin, permission) pair was previously placed under embargo, no prompt is displayed and the reason for embargo is recorded. Otherwise, the prompt is shown and a no embargo reason is recorded. Warning: this histogram was expired from 2025-01-24 to 2025-07-02; data may be missing. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the reason that an (origin, permission) pair has been placed under embargo (blocked from making requests for that permission for a period of time). This is triggered when a permission is placed under embargo for blacklisting (once Safe Browsing has returned a result), when a permission prompt has been shown and it is placed under embargo for repeated dismissals, or when a permission prompt is shown and not embargoed. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the allow action whenever the user clicks on the Allow button in the message UI for the loud notification permission prompt. This action will accept the current notifications permission prompt. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the deny action whenever the user clicks on the Don't Allow menu item in the message UI for the loud notification permission prompt. This action will deny the current notifications permission prompt. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the dismiss action whenever a loud notification permission prompt in the form of the message UI is dismissed by the user. This action is processed as the deny action, hence this histogram is used to track the dismiss action. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records when the user clicks on the Manage menu item in the message UI for the loud notification permission prompt. This action redirects the user to the PageInfo Permissions subpage where the user can grant or deny the permission prompt. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the close action whenever the user closes the PageInfo Permissions subpage after having seen the notification permission prompt. This action is processed as the deny action, hence this histogram is used to track the close action. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether the OS-level notification permission prompt was granted or denied when the user clicked on the Subscribe button in the PageInfo Permissions subpage or on the Allow button in the message UI. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the reset action whenever the user clicks the Reset permission button in the PageInfo Permissions subpage after having seen the notification permission prompt. The permission request is resolved as Dismissed. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the accept action whenever the user taps on the subscrube button in the notification permission row from the PageInfo Permissions subpage. lyf@chromium.org elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Record when CPSS setting is changed by users in the site settings page, what user preference is and whether user preference is related to UI changes. andypaicu@chromium.org src/components/permissions/PERMISSIONS_OWNERS Whenever a notification permission prompt is to be displayed, crowd deny might trigger based on site reputation which will result in a quiet permission prompt UI to be used. Whenever this happens, there is a small chance that the normal UI will still be used. This records, when a quiet UI is supposed to be shown, whether it has been randomly selected into the hold-back group. In this case the normal UI will be displayed unless overriden by the user Prefences. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Record, for each incoming push notification, a delay caused by loading Crowd Deny component during abusive an origin verification. It's recorded only for non-abusive origins and only if the Crowd Deny request was made while the preload data is in the process of being loaded. Timing starts at requesting CrowdDenyPreloadData::GetReputationDataForSiteAsync, and timing ends after Crowd Deny returns result to AbusiveOriginPermissionRevocationRequest::OnSiteReputationReady. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org Records, each time a notification permission prompt is about to be shown, the NotificationUxQuality result for the requesting origin. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records, each time abusive origin verification is performed, the version of the Crowd Deny preload data on disk (not necessarily loaded). andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org Records, each time a Safe Browsing request is made in response to a website requesting the notification permission, how long that Safe Browsing request took. This also includes all delays introduced by thread hopping. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records, each time a Safe Browsing request is made in response to a website requesting the notification permission, the Safe Browsing verdict regarding the notification prompt experience on that site. antoniosartori@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever "Permissions.DSE.EffectiveSetting.Geolocation" is recorded with value ALLOW. Tracks the Geolocation Accuracy granted to the Default Search Engine origin. andypaicu@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded at initialization and when the Default Search Engine origin is changed. Tracks the setting for the Default Search Engine origin. Suffixed by `PermissionTypes` to provide information per permission type. Only recorded for Android as that is the only platform where the DSE permissions were enabled. {PermissionTypes} tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a navigation finished in a primary main frame. Records what type of permission header policy the top-level document defined for the feature corresponding to {PermissionType} . tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a permission is used in a cross-origin frame. Records what type of permission header policy the top-level document defined for the accessed feature. Warning: this histogram was expired from 2025-03-09 to 2025-06-27; data may be missing. michelleabreo@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded on each permission status check for a user-prompted permission type, but only when the kGlicActorPermissionsAutoReject feature is enabled. Records whether an actor was active, causing the permission to be blocked (true), or if no agent was active (false). This allows for calculating the rate at which the agent denies permission checks. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a permission is used. Records whether the permission is used in a cross origin frame. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a RenderFrameHost is used to fetch an origin for permission verification on Android. This histogram is needed to verify if the file url override rule is still needed. Warning: this histogram was expired from 2024-10-03 to 2024-11-22; data may be missing. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org Recorded when the "Chrome needs permission..." infobar is resolved. Records the resulting action that was taken. Suffixed by `PermissionTypes` to provide information per permission type. {PermissionTypes} andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when the "Chrome needs permission..." infobar might be displayed to the user because a site already has the permission but Chrome does not. Records whether the infobar should be displayed or not. Ignores situations when the infobar cannot be displayed (for example because there is no appropriate web contents) as in those cases no decision is actually made. Suffixed by `PermissionTypes` to provide information per permission type. {PermissionTypes} tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever the negative button is shown on one time permission prompt Records whether the button is out of screen or not. Android only. fjacky@chromium.org src/components/permissions/PERMISSIONS_OWNERS Logs granting, revocation, and expiry behaviors of one time permissions. Starting with M116, the lifetime limit is enforced actively instead of lazily, and expiration is accurately captured in "Expired after maximum lifetime". M116 also added the functionality to expire on suspend. This event is also captured in the new enum value "Expired because the device was suspended". Note that these buckets are only recorded for clients >= M116. Warning: "Revoked one time grant manually" is only recorded correctly for clients >= M116 (and should be ignored for previous major versions) elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the number of times a one-time permission has been granted for a site. Each count represents an additional one-time grant for the same site. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the number of times a one-time permission was granted for a site before a {OTPCountPermissionAction} action was taken. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric measures how often users change permissions state via PageInfo and if the page is subscribed to the permission status change listener. Recorded when users changes permissions state or clicks the "Reset permission" button in PageInfo. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records if a user manually reallowed permission state via PageInfo. Recorded when the user closes a tab, makes cross-origin navigation, or if permission is used by an origin. Grouped by whether permission was used, the page was reloaded and a "Reload this page" infobar was shown. fjacky@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric measures how often and in what way users change their mind within the first minute of making an active permission decision, i.e. any PermissionAction that is any action that is not ignore, dismiss or an automated revoke event. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric measures how often and in what way users change permissions state via PageInfo and if we show a "Reload this page" info bar. Recorded when users changes permissions state or clicks the "Reset permission" button in PageInfo. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the user action on a permission prompt when the prediction service determined the grant likelihood to be unlikely or very unlikely. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the user action on a permission prompt based on user gesture and prominence. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a notifications or geolocation permission is sent to the prediction service. Records whether there is a concurrent request. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a notifications or geolocation permission is sent to the prediction service. Records whether the user has Make Searches and Browsing Better enabled. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the prediction service's likelihood prediction for a permission prompt, for users with disabled MSBB. This is recorded when a permission prompt is resolved. ravjit@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when the client does the on-device permission prediction using the signature runner. The histogram records whether the model that is downloaded is compatible with the signature runner or not. A value of true means its a mismatch, i.e. the model is not the signature runner model. False means otherwise. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Recorded when the overall timeout for the prediction service is reached. This indicates that the entire process of selecting a permission UI took longer than the allowed time. This is not recorded when the request is cancelled. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a quiet permission prompt was granted. Records whether the page subscribed to a permisson status change event. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session up to 1 hour on a given origin after a Notifications or Geolocation permission prompt has been displayed and until the tab is closed or a cross-origin navigation occurs. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session between 5 minutes and 10 minutes on a given origin after a Notifications or Geolocation permission prompt has been displayed and until the tab is closed or a cross-origin navigation occurs. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session up to 10 seconds on a given origin after a Notifications or Geolocation permission prompt has been displayed and until the tab is closed or a cross-origin navigation occurs. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session between 11 seconds and 1 minute on a given origin after a Notifications or Geolocation permission prompt has been displayed and until the tab is closed or a cross-origin navigation occurs. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session between 10 minutes and 30 minutes on a given origin after a Notifications or Geolocation permission prompt has been displayed and until the tab is closed or a cross-origin navigation occurs. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session between 1 minute and 5 minutes on a given origin after a Notifications or Geolocation permission prompt has been displayed and until the tab is closed or a cross-origin navigation occurs. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session between 5 minutes and up to 1 hour on a given origin before a Notifications or Geolocation permission prompt has been displayed. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session up to 1 minute on a given origin before a Notifications or Geolocation permission prompt has been displayed. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the duration of the browsing session between 1 minute and up to 5 minutes on a given origin before a Notifications or Geolocation permission prompt has been displayed. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the grant likelihood of a permission request based on whether a gesture was associated with it,for users with enabled MSBB. This is recorded by the prediction service for Notifications and Geolocation permissions. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a permission is sent to the prediction service. Records which prediction service was used to generate the prediction. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt accept, records the total number of prompt dismissal events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the accept. The suffix of the histogram indicates which particular permission. {PermissionTypes} Warning: this histogram was expired from 2025-01-25 to 2025-06-27; data may be missing. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt accept, records the total number of prompt ignore events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the accept. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt one-time accept, records the total number of prompt dismissal events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the accept. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt one-time accept, records the total number of prompt ignore events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the accept. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22 and from 2026-04-20 to 2026-04-21; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when the user clicks on the one-time allow button of the permission prompt. Tracks the permission bubbles (merged and non-merged) that are accepted once. Merged bubbles are considered accepted if all permissions are allowed. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionRequestGesture} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the permission bubbles (merged and non-merged) that are accepted. Merged bubbles are considered accepted if all permissions are allowed. {PermissionRequestGesture} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt deny, records the total number of prompt dismissal events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the accept. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt deny, records the total number of prompt ignore events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the accept. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the permission bubbles (merged and non-merged) that are denied. Merged bubbles are considered denied if any permission is denied. {PermissionRequestGesture} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt dismiss, records the total number of prompt dismissal events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the dismiss. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-07-09 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt dismiss, records the total number of prompt ignore events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the dismiss. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} tommasin@chromium.org antoniosartori@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when a geolocation permission prompt is resolved. This tracks whether the user granted precise or approximate location. Only recorded when the feature flag kApproximateGeolocationPermission is enabled. dullweber@chromium.org fsenra@chromium.org Records whether a permission prompt for a two origin scoped permission (e.g. StorageAccess) has successfully loaded a favicon. Recorded when a permission prompt with favicons is shown. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt ignore, records the total number of prompt dismissal events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the ignore. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS This metric, recorded at the time of a permission prompt ignore, records the total number of prompt ignore events for this origin since the last time the user explicitly set the permission state or cleared history / site data and prior to the ignore. The suffix of the histogram indicates which particular permission. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. {PermissionTypes} engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether chrome has notifications already enabled at the app level or at least is allowed to request for app level permission. When none of these conditions are true, site level notification permissions are blocked. Recorded when a site attempts to prompt the user for notifications permission. Android only. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks how many times permission prompts are shown to users. {PermissionRequestGesture} tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether the browser was always active while the {PermissionType} prompt was displayed. Recorded when a permission prompt was destroyed. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether the browser was always active while the {PermissionType} prompt was displayed. Recorded when an ElementAnchoredBubble prompt was destroyed. hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks how a {PermissionType} prompt was dismissed by the user. Tracked when the user dimisses an ElementAnchoredBubble prompt. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether the browser was active at the time the {PermissionType} prompt was displayed. Recorded when an ElementAnchoredBubble prompt started displaying. hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records which screen was shown to the user as part of an ElementAnchoredBubble permission prompt. Multiple screens can be shown sequentially as part of the same prompt. Is recorded when the screen is shown. hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the action taken on a {PermissionType} screen that informs the user about state of the OS settings. Recorded when the user interacts with this screen. hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the time until an action is taken on a {PermissionType} screen that informs the user about state of the OS settings. Recorded whenever the user takes an action that results in closing the screen. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether the browser was active at the time the {PermissionType} prompt was displayed. Recorded when a permission prompt started displaying. tungnh@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when the user resolves the {PermissionType} permission prompt. Records whether the browser was always active before interacting with the prompt. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks the action that a user had taken for a {PermissionType} permission prompt with disposition of type {Disposition}. Recorded when a permission prompt has been resolved. fjacky@chromium.org src/components/permissions/PERMISSIONS_OWNERS Tracks how the user dismissed the {PermissionType} permission prompt with disposition of type {Disposition}. Recorded when a permission prompt has been resolved. Currently only implemented and reported for Clank. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records if a permission prompt bubble of type {PermissionType} was displayed as a result of a user having clicked on a chip with disposition {Disposition} that was subsequently ignored. Chip framework is only available on Desktop. fjacky@chromium.org src/components/permissions/PERMISSIONS_OWNERS Permission requests are categorized as ignored when the user failed to take action. This metric captures more detailed information on why a permission request was ignored. Warning: this histogram was expired from 2024-02-20 to 2024-09-06; data may be missing. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records how long it takes for the user to take the {Action} action on a prompt of type {PermissionType} with {Disposition} disposition. The Ignored state will be recorded if the user closes the tab or a permission chip gets expired. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records {ButtonClick} if a user clicked on "Learn More" or "Manage" buttons on the quiet chip of type {PermissionType} with {Disposition} disposition. Recorded when the permission prompt gets resolved with {Action} action and only for the quiet chip. Warning: this histogram was expired from 2024-10-31 to 2024-11-22; data may be missing. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded when a permission prompt creation is in progress. Note: The meaning of this metric's boolean value flipped for M-136, starting from 07.03.2025 (see crbug.com/400381904). Updated meaning: if this evaluates to true this means that the prompt could be displayed. selya@google.com mtaylor@chromium.org Records if the permission being queried is "top-level-storage-access" permission. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records when the quiet notification permission UI state changes, that is, it either gets enabled or disabled, in preferences. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether the quiet notification permission UI is enabled in preferences at profile creation. No sample recorded when notifications are set to be blocked completely. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records when a permission request was preignored because it will be shown as a quiet chip. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records when the 'Reload this page' info bar is shown after a quiet permission prompt has been resolved with a grant action. This happens when the page is not aware of the grant and needs to be reloaded to reflect the new permission state. Recorded on desktop platforms only. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a permission request is made by a cross-origin site, and before it is decided whether the request should be displayed to the user. Records the permission type of the request. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a permission request is made by a same-origin site, and before it is decided whether the request should be displayed to the user. Records the permission type of the request, and is grouped by whether the requesting frame is the main frame or a sub frame. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the time elapsed since the grant of the permission until it's revoked. {PermissionTypes} engedy@chromium.org willxu@google.com src/components/permissions/PERMISSIONS_OWNERS Records, each time when the notification permission is revoked, whether a UKM event was recorded as well. engedy@chromium.org willxu@google.com src/components/permissions/PERMISSIONS_OWNERS When revoking the notification from a website for push messaging, this records the PermissionSourceUI where it occurred. reillyg@chromium.org src/content/browser/serial/OWNERS Records the reason why the Serial API chooser, triggered by a call to navigator.serial.requestPort(), was closed. reillyg@chromium.org src/content/browser/serial/OWNERS Records when permission to access a serial port is revoked. lyf@chromium.org elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records when and what content setting is changed in the site setting's page. Data recorded earlier than M135 is recorded directly with `ContentSettingsType` in `components/content_settings/core/common/content_settings_types.mojom`, which means they are probably in the wrong buckets and need to be viewed with cautious. lyf@chromium.org elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records which content setting value a user has selected for a particular content setting type in the site settings page. For example, this may be `Allow` for the `Notifications` permission setting or `Block` for the `Camera` permission setting. antoniosartori@chromium.org engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records whether chrome has notifications already enabled at the app level or at least is allowed to request for app level permission. When none of these conditions are true, site level notification permissions are blocked. Recorded whenever notification permission is queried. Android only. fjacky@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the time elapsed since the grant of the permission until it's latest usage for a particular content setting source. This histogram will be recorded only for the first usage of a given permission after the site has loaded. Warning: this histogram was expired from 2026-04-20 to 2026-04-21; data may be missing. engedy@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the time elapsed since the grant of the permission until it's latest usage. This histogram will be recorded only for the first usage of a given permission after the site has loaded. {PermissionTypes} lyf@chromium.org elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Record each time when a site uses PermissionType. Duration represents buckets of time between two adjacent permission usages. engedy@chromium.org willxu@google.com src/components/permissions/PERMISSIONS_OWNERS Records, each time when the notification permission is used, whether a UKM event was recorded as well. mattreynolds@chromium.org deviceapi-team@google.com Records the reason why the WebHID device chooser was closed. renkens@google.com lt-web-apps-team@google.com Reports whether a usage of the Window Management API on Android was allowed or blocked (when AndroidWindowManagementWebApi feature flag is enabled). Recorded once per call to Window Management API for Chrome on Android and Android WebView. If sites can ask to manage windows on all users' displays, the decision about allowing or blocking usage is determined by the user when the site first wants to use the Window Mangement. After that decision, all other usages on this site will use the same decision. If sites cannot ask to manage windows on all users' displays, it will be blocked automatically. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the time it took for the permissions prediction service to inquire the {PredictionModel} and await its response for a permission request. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether the {PredictionModel} model execution is already in progress when ExecuteModel is called. This should not happen, but we want to verify this. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether the {PredictionModel} model execution took longer than the timeout, hence the execution was terminated. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether the rendered text was fetched successfully and was suitable as input for model execution. Specifically, we require it to be longer than 10 characters to be used as input for the {PredictionModel} model. elklm@chromium.org hempjudith@google.com ravjit@chromium.org src/components/permissions/PERMISSIONS_OWNERS Recorded whenever a {PredictionModel} responds to a {PermissionType} permission request. Records whether its response was ignored or not. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records whether the snapshot needed as input for the {PredictionModel} model was taken successfully. This could go wrong if the current render view was occluded (in the background) during the snapshot was taken. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the time it took for the permissions prediction service to fetch the snapshot needed as the input for the {PredictionModel} model. elklm@chromium.org src/components/permissions/PERMISSIONS_OWNERS Records the generated relevance signal after a successful execution of the available model. elklm@chromium.org hempjudith@google.com src/components/permissions/PERMISSIONS_OWNERS Records the size of the rendered text when it was fetched successfully and was suitable as input for model execution. Specifically, we require it to be longer than 10 characters to be used as input for the {PredictionModel} model. calamity@chromium.org dominickn@chromium.org Distribution of the engagement scores accumulated by a user, recorded at startup per non-incognito profile, and then upon the first engagement-increasing event every hour thereafter. calamity@chromium.org dominickn@chromium.org The type of engagement (navigation, user input, etc.) which led to an accumulation in site engagement. jdeblasio@chromium.org chrome-secure-web-and-net@chromium.org The mean site engagement per origin accumulated by this profile, recorded at startup per non-incognito profile, and then upon the first engagement-increasing event every hour thereafter. Warning: this histogram was expired from 2022-03-12 to 2024-10-22; data may be missing. calamity@chromium.org dominickn@chromium.org The median site engagement per origin accumulated by this profile, recorded at startup per non-incognito profile, and then upon the first engagement-increasing event every hour thereafter. calamity@chromium.org dominickn@chromium.org The total number of origins with a non-zero site engagement score for this profile, recorded at startup per non-incognito profile, and then upon the first engagement-increasing event every hour thereafter. estark@chromium.org dullweber@chromium.org Tracks actions with the website setting (a.k.a. page info / origin info) bubble, such as opening it up or clicking on the Connection tab. sauski@google.com alimariam@google.com Tracks actions with the "All Sites" page in website settings starting in M82. No data available for M94, was temporarily expired. Values 7 and 8 were added with M96. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Count of how often a specific content type (permission) is changed using the Origin Info dialog. Note: The values of this metric collected for Chrome 49 (early 2016) are innacurate and should not be trusted. crbug.com/589255. andypaicu@chromium.org src/components/permissions/PERMISSIONS_OWNERS Count of how often a specific content type (permission) is set to 'Allowed' using the Origin Info dialog. Note: The values of this metric collected for Chrome 49 (early 2016) are innacurate and should not be trusted. crbug.com/589255. andypaicu@chromium.org engedy@chromium.org hkamila@chromium.org src/components/permissions/PERMISSIONS_OWNERS Count of how often a specific content type (permission) is set to 'Blocked' using the Origin Info dialog. Note: The values of this metric collected for Chrome 49 (early 2016) are innacurate and should not be trusted. crbug.com/589255.