sebsg@chromium.org jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records the status of the link generation when a user shares content using the feature on Android. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Indicates number of iterations it took for AsyncFindBuffer to finish the search. AsyncFindBuffer is used only for validating generated text fragment selectors for Shared Highlighting. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Time it took in milliseconds for AsyncFindBuffer to finish the search. AsyncFindBuffer is used only for validating generated text fragment selectors for Shared Highlighting. sebsg@chromium.org jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records the type of shared highlighting link the user copied on desktop. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records errors that caused text fragment selector generation to fail. Recorded for all the failed link generation runs. This histogram is a superset of |SharedHighlights.LinkGenerated.Error.Requested|. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records errors that caused text fragment selector generation to fail. Recorded only for failure cases that were requested by users. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Time it took in millisecons for a failed text fragment selector generation attempt. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records the state of the link generation when link to text request is received from the browser process. jeffreycohen@chromium.org chrome-shared-highlighting@google.com How long it took in milliseconds to successfully generate text fragment selector. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Indicates whether text fragment selector generation was successful for {Requested}. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records the status of link to text flow on Android for diagnostic purposes. Intended to be temporary for debug purposes. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Records if obtaining reshare link was successful. Otherwise, it records the failure reason. jinsukkim@chromium.org clank-app-team@google.com Records the origin of the sharing action in the Intent object. Recorded when the Intent is processed in browser app for viewing. Android only. salg@google.com ssid@google.com Records ocurrences of various UI events related to the page summary sharing sheet (open sheet, dismiss sheet, send feedback, etc.). Recorded based on user actions (See enum definitions for more details). dimich@chromium.org sophey@chromium.org src/chrome/browser/share/OWNERS The UI surface that started any share attempt. Android only. This is a vital metric for the sharing team; please do not remove it or change its behavior without consulting the metric owners. dimich@chromium.org src/chrome/browser/share/OWNERS The UI surface that started any share attempt. Desktop only. This is a vital metric for the sharing team; please do not remove it or change its behavior without consulting the metric owners. mvanouwerkerk@chromium.org knollr@chromium.org Logged when we try to fire a dial intent in click to call. Distinguishes between if the user has an app that can handle dial intent or not. Android only. wenyufu@chromium.org sophey@chromium.org src/chrome/browser/share/OWNERS Records the origin of the share that opened the default sharesheet. Recorded when the sharesheeet is opened. jhimawan@google.com src/components/paint_preview/OWNERS Records the memory limit percentage when a long screenshot capture is initiated. Recorded for both the system (scroll capture) and share sheet (compositor) paths. Android only. mvanouwerkerk@chromium.org peter@chromium.org The type of SharingMessage (aka the PayloadCase). This is logged when a message is received through FCM by the handler in the Sharing service. All platforms. bkassenov@google.com src/chrome/browser/sharing/OWNERS Records the result of validating an incoming OneTimeTokenSharing message. Recorded when a message is received by OneTimeTokenSharingHandler. wenyufu@chromium.org src/chrome/browser/share/OWNERS The time to download the favicon as the image preview or processing the provided preview image as URI, for sharing an link using Android share sheet. Recorded when sharing a link with Android share sheet only. jeffreycohen@chromium.org src/chrome/browser/share/OWNERS Logged when actions are taken in the sharing screenshot image editing feature. ckitagawa@chromium.org src/components/paint_preview/OWNERS Records the status of the Bitmap Generator when capturing scroll capture long screenshot. Recorded after the page capture request is sent to the paint_preview capture service and compositor, when the service is no longer busy. This metric is only emitted on Android S+. jhimawan@google.com src/components/paint_preview/OWNERS Records the memory pressure level when a scroll capture search is initiated. Recorded when the system requests scroll capture support. Android only. ckitagawa@chromium.org src/components/paint_preview/OWNERS Records the total time spent capturing a long screenshot of a page using scroll capture. It is recorded when a scroll capture request successfully finishes. This metric is only emitted on Android S+. peter@chromium.org knollr@chromium.org Result of sending a SharingMessage by the Sharing service. Logged after the send message callback is run. Not logged for sending ack messages. {DevicePlatformOrChannel} {PulseIntervalOrSharingMessage} rushans@google.com src/chrome/browser/share/OWNERS Records whether a SharingMessage is being sent over sync. Recorded for all messages before sending them. Recorded for all platforms. mtatarski@google.com src/components/sync/OWNERS Records the entry point from which a received Send Tab to Self tab was activated by the user or automatically activated by the system. If a tab is opened in the background but is closed or the browser is shut down before the user activates it, this is recorded as "Tab or Browser Closed Without Activation". ankushkush@google.com src/chrome/browser/share/OWNERS Outcome of an attempt to automatically open a received Send Tab To Self entry in the foreground. Recorded whenever a new entry is received and evaluated for auto-opening. treib@chromium.org ankushkush@chromium.org src/components/sync/OWNERS Records the form factor combination of the sending (local) device and the target (destination) device when a tab is sent. Recorded on the sending device at the moment the tab is sent. treib@chromium.org src/chrome/browser/share/OWNERS Records the entry point (UI surface) from which Send Tab To Self was invoked by the user on the sending device. Logged when the share bubble/sheet/dialog is first shown to the user. mtatarski@google.com src/components/sync/OWNERS Records whether the local device name is available when sending a Send Tab To Self entry. The device name can be unavailable during early startup before DeviceInfoTracker initialization. This metric helps determine whether receiver-side toast and snackbar UIs require a fallback display string. Note that this metric is recorded once per share attempt rather than once per user or device, so users who share frequently will contribute more samples. mtatarski@google.com src/components/sync/OWNERS Records whether an opened Send Tab To Self notification contained a valid scroll position (text fragment). Recorded when the user clicks the notification on the receiving device. jeffreycohen@chromium.org src/chrome/browser/share/OWNERS Status of STTS notifications. Recorded whenever a target device is chosen, a received notification is shown, or an action is taken on the notification. mtatarski@google.com src/components/sync/OWNERS Records the serialized size in bytes of the PageContext proto when a user sends a tab to themselves. Recorded when the entry is successfully added to the SendTabToSelf model on the sending device. This size represents the pre-truncation size, before it potentially gets dropped if it exceeds the limit. mtatarski@google.com src/components/sync/OWNERS Records the outcome of matching a received form field to a field on the page (Strict match, Signature match, Exact Type Set match, or No match). Recorded on the receiving device when the filler instance is destroyed (either upon timeout or navigation/destruction), which avoids timing skew between matches and non-matches. Note: if the browser is closed before the filler is destroyed, some samples might be lost. Fields that match in signature or type but have a different origin are ignored for security reasons and recorded as kNoMatch. mtatarski@google.com src/components/sync/OWNERS Records the total vertical scroll volume (sum of absolute deltas) by the user after a Send Tab To Self tab is opened. The volume is recorded when the tab is closed or navigated away. {RestorationState} Recorded for Desktop and Android. The programmatic scrolling itself (from scroll restoration) is not included in the count. mtatarski@google.com src/components/sync/OWNERS Records the outcome of attempting to generate a text fragment for scroll position restoration when a user sends a tab to themselves. Recorded when the selector generation completes, times out, or fails. mtatarski@google.com src/components/sync/OWNERS Records the time taken to generate the text fragment selector for scroll position restoration when a user sends a tab to themselves. Recorded when the selector generation completes, times out, or fails. mtatarski@google.com src/components/sync/OWNERS Records the length (in characters) of the generated text fragment selector for scroll position restoration when a user sends a tab to themselves. Recorded only for successful generations. mtatarski@google.com src/components/sync/OWNERS Records the result of attempting to send a tab to another device. Recorded when the send attempt completes. treib@chromium.org src/chrome/browser/share/OWNERS Records the entry point (UI surface) from which Send Tab To Self was invoked by the user on the sending device. Logged when the user selects a target device and the sending is triggered. mtatarski@google.com src/components/sync/OWNERS The number of target devices when the Send Tab to Self UI is invoked from {ShareEntryPoint}. Recorded when the UI is shown (or signed-out promo or no target devices promo is shown). ankushkush@google.com src/components/sync/OWNERS Records the time from when a tab was opened on the target device to the first time it was activated on the target device. An entry is considered activated if the corresponding tab became visible to the user on the target device, either by the tab being opened in the foreground, or by the user manually switching to the tab. Recorded when the entry is activated. ankushkush@google.com src/components/sync/OWNERS Records the time from when a tab was shared on the sending device to the first time it was activated on the target device. An entry is considered activated if the corresponding tab became visible to the user on the target device, either by the tab being opened in the foreground, or by the user manually switching to the tab. This involves clocks on two different devices so the value may be skewed. Recorded when the entry is activated. mtatarski@google.com src/components/sync/OWNERS Records the time from when a tab was shared on the sending device to when the user opened it on the target device. This involves clocks on two different devices so the value may be skewed. Recorded when the entry is opened. mtatarski@google.com src/components/sync/OWNERS Records the time from when a tab was shared on the sending device to when it was first received by the target device's sync bridge. This involves clocks on two different devices so the value may be skewed. Recorded when the entry is received. jhimawan@google.com src/components/paint_preview/OWNERS Records the status of the Bitmap Generator when capturing long screenshot from the share sheet (3-dot menu path). Recorded when the capture completes or fails due to insufficient memory or other errors. Android only. wenyufu@chromium.org src/chrome/browser/share/OWNERS Records the custom action when the user clicked one on the share sheet. Recorded for both Chrome's sharing hub and Android's share sheet on U+. wenyufu@chromium.org sophey@chromium.org src/chrome/browser/share/OWNERS Records the origin of the share that opened the sharing hub. Recorded when the sharing hub is opened. wenyufu@chromium.org sophey@chromium.org src/chrome/browser/share/OWNERS Records the index of the third party app selected from the bottom row of the sharing hub. wenyufu@chromium.org src/chrome/browser/share/OWNERS Records the amount of time taken for the user to select a custom action after initiating a share. Can record multiple times if the custom action redirect the user back to the share sheet, but each time only record the duration between share sheet shown until user click an action. Recorded for both Chrome's sharing hub and Android's share sheet on U+. wenyufu@chromium.org sophey@chromium.org src/chrome/browser/share/OWNERS Records the amount of time taken for the custom share sheet to open after a share was initiated. wenyufu@chromium.org sophey@chromium.org src/chrome/browser/share/OWNERS Records what the link toggle state is when a share of a {DetailedContentType} is {ShareStatus}. yigu@chromium.org src/content/browser/sms/OWNERS The number of available devices when making a request on desktop which is triggered by calling the WebOTP API. This is logged once per API call. Desktop only. yigu@chromium.org src/content/browser/sms/OWNERS Records whether the phone is on and unlocked when we show the notification to users. False if either the phone is locked or the phone does not have a screen lock but the screen is off. This is logged once per notification. peter@chromium.org knollr@chromium.org Number of ice servers fetched by network traversal API call. Logged after receiving response of API call. wenyufu@chromium.org src/chrome/browser/share/OWNERS The content type being shared when using a share sheet. Recorded when share is sent to share sheet for {ShareSurface}. Android only. jeffreycohen@chromium.org chrome-shared-highlighting@google.com Warning: This histogram was expired from 2024-09-29 to 2026-03-11; data may be missing or incomplete for this period. Recorded for every navigation to a link with a valid text fragment selector (e.g. #:=:text=SELECTOR). Indicates source type that navigation originated from. It only know about search engines that come from the pre-populated list installed with Chrome. If the user uses a search engine not on the list, it will be recorded as Unknown. This is even true if the user have a custom search engine. These custom search engines can be created by hand or auto-generated. In either case, it's not going to count as a search engine. Also, it only checks to see if the *referrer* is from a domain associated with search engine. If someone posts a link somewhere on a web site that happens to have a search engine known to Google and that links includes the fragment tokens, then if a user clicks that link, it'll look like it came from a search engine even thought they did not. bokan@chromium.org chrome-shared-highlighting@google.com Warning: This histogram was expired from 2024-06-30 to 2026-03-11; data may be missing or incomplete for this period. Whether we found multiple matches for a selector. Recorded when TextFragmentAnchor finishes searching once the page is loaded. Recorded from text fragment links followed from {TextFragmentSource}. bokan@chromium.org chrome-shared-highlighting@google.com Warning: This histogram was expired from 2024-06-30 to 2026-03-11; data may be missing or incomplete for this period. The percentage of selectors for which a match was found in the document. Recorded when TextFragmentAnchor finishes searching once the page is loaded. Recorded from text fragment links followed from {TextFragmentSource}. bokan@chromium.org chrome-shared-highlighting@google.com Warning: This histogram was expired from 2024-06-30 to 2026-03-11; data may be missing or incomplete for this period. The time between creating the TextFragmentAnchor (i.e. when it is parsed) and scrolling the target into view. Only recorded if there is a match and we tried to scroll it into view (it may already have been in view). Recorded when TextFragmentAnchor finishes searching once the page is loaded. Recorded from text fragment links followed from {TextFragmentSource}.