stkhapugin@google.com radunitescu@google.com Logged when the user swiped the sheet, resulting in a change of dimension. Only logged on iOS. hujasonx@chromium.org lens-chrome@google.com Recorded when a context upload request fails. Measures the time elapsed between the time the request was initiated and the time the failure response was received. hujasonx@chromium.org lens-chrome@google.com Recorded when a context upload request succeeds. Measures the time elapsed between the time the request was initiated and the time the successful response was received. mercerd@google.com lens-chrome@google.com Recorded once when the Lens side panel is dismissed. Records whether the AIM handshake with the remote UI was compoleted at least once in the session. hujasonx@chromium.org lens-chrome@google.com Recorded when a {UploadType} request is created. Logs whether the background downscaling and encoding process returned empty bytes. hujasonx@chromium.org lens-chrome@google.com Recorded when a {UploadType} is processed. Logs whether the input bitmap was null or empty. hujasonx@chromium.org lens-chrome@google.com Recorded when a {UploadType} is processed. Logs the maximum dimension (width or height) of the input image before downscaling. hujasonx@chromium.org lens-chrome@google.com Recorded when a {UploadType} is processed. Logs the maximum allowed downscale dimension limit to verify active experiment values. hujasonx@chromium.org lens-chrome@google.com Recorded when a {UploadType} request is created. Logs the maximum dimension (width or height) of the successfully downscaled image. mercerd@google.com lens-chrome@google.com Recorded once when the Lens side panel is dismissed. Records whether the composebox was shown in this Lens session. Only recorded if the Lens side panel was shown. mercerd@google.com lens-chrome@google.com Recorded everytime a user makes an action in the composebox. Records which action was taken. mercerd@google.com lens-chrome@google.com Recorded once when the Lens side panel is dismissed. Records any user action that was taken in the composebox during this Lens session. yusuyoutube@google.com benwgold@google.com Logged the time between the start of the Lens image classifcation call to the early termination before the call completes. Only logged on Android. yusuyoutube@google.com benwgold@google.com Logged the end to end latency of the Lens image classifcation call when the user completes a long press on an image. Only logged on Android. yusuyoutube@google.com benwgold@google.com Logged the result state of the Lens image classifcation call when the user completes a long press on an image. Only logged on Android. yusuyoutube@google.com benwgold@google.com Logged the error code when there is a Lens SDK error occurred within the classification session. The error code is an integer constant defined by the SDK. Only logged on Android. See http://b/170422682 for more details. yusuyoutube@google.com benwgold@google.com fgorski@chromium.org wylieb@google.com lens-chrome@google.com Whether the user supports the camera assisted search with Google Lens and if not, the reason why. Recorded only if the feature is enabled when the omnibox or the new tab page is loaded. stanfield@google.com mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is invoked, sliced by type of the top level document. hujasonx@chromium.org lens-chrome@google.com Recorded once when a context menu option is shown in the Lens overlay. This is triggered when the user selects a region of the page, or after the user right-clicks to restore an already-used context menu. This histogram is sliced by invocation source. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by invocation source. Indicates whether or not a search was performed at any point since the overlay was invoked. juanmojica@google.com lens-chrome-eng@google.com Records an event for the close button on the selection overlay. Recorded every time the button is shown to the user, and once if it is used in the session. This allows for measuring click-through rate. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by invocation source. Measures the elapsed time between when the overlay was invoked and when it was dismissed. christianxu@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by invocation source. It measures the total duration that the overlay is in the foreground. Sum of all times that the overlay tab is returned to the foreground. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the user first interacts with the overlay, sliced by invocation source. Measures the elapsed time between when the overlay was invoked and when the user first interacts with the overlay. Nothing is logged when the user enters through the image context menu. mercerd@google.com lens-chrome@google.com Recorded whenever a PDF is fetched from the PDF renderer. Records the number of pages in the PDF that was fetched. mercerd@google.com lens-chrome@google.com Recorded when bytes are retrieved from the underlying page content. For web, both the innerText and the innerHtml are logged to help estimate the delta between the two. hujasonx@chromium.org lens-chrome@google.com Recorded once when a context menu option is shown in the Lens overlay. This is triggered when the user selects a region of the page, or after the user right-clicks to restore an already-used context menu. stanfield@google.com mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by the document content type, as specified by the WebContents. This is different from the page content type defined below, which logs based on the content type of the bytes extracted from the page. Records whether the contextual searchbox was shown in the session. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by the type of content extracted from the page. Records whether the contextual searchbox was focused at least once in sessions in which it was shown. stanfield@google.com mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by page content type. Records whether the contextual searchbox was shown in the session. mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay contextual searchbox is focused for the first time, sliced by page content type. Records the time from the user invoking the Lens Overlay to the user focusing into the contextual searchbox. Does not log if the user never focuses into the contextual searchbox. mercerd@chromium.org lens-chrome@google.com Recorded once after the first focus into the contextual searchbox following a navigation to a new page while the results side panel is open, sliced by page content type. Measures the elapsed time between when the page navigated and when the user subsequently focuses the contextual searchbox. mercerd@chromium.org lens-chrome@google.com Recorded once after the first query issued from the contextual searchbox following a navigation to a new page while the results side panel is open, sliced by document type. Measures the elapsed time between when the page navigated and when the user subsequently interacts with the contextual searchbox. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether the contextual searchbox was focused at least once in sessions in which it was shown. stanfield@google.com mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether the contextual searchbox was shown in the session. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by document type. Records whether at least one contextual query was issued in sessions in which the contextual searchbox was shown (includes zero prefix suggest queries and typed queries). The document type is the intial document type when the lens overlay is invoked, not necessarily the same as the document type as when ZPS is shown. mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether the user issued a query from the contextual searchbox before any contextual suggestions were shown, sliced by page content type. This metric only tracks follow-up queries, aka the query issued when the live page is visible next to the results panel. This metric is session based, meaning if at anytime over the span of multiple follow queries, the user issues a query before any suggestions are shown, this metric will be recorded as true. mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether the user issued a query from the contextual searchbox before any contextual suggestions were shown. This metric only tracks follow-up queries, aka the query issued when the live page is visible next to the results panel. This metric is session based, meaning if at anytime over the span of multiple follow queries, the user issues a query before any suggestions are shown, this metric will be recorded as true. mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether the user issued a query from the contextual searchbox before any contextual suggestions were shown, sliced by page content type. This metric only tracks the initial query, aka the query issued when the visual selection overlay is open. mercerd@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether the user issued a query from the contextual searchbox before any contextual suggestions were shown. This metric only tracks the initial query, aka the query issued when the visual selection overlay is open. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether at least one contextual query was issued in sessions in which the contextual searchbox was shown (includes zero prefix suggest queries and typed queries). niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by the type of content extracted from the page. Records whether any zero prefix contextual suggestions were shown in sessions in which the contextual searchbox was shown. The document type is the intial document type when the lens overlay is invoked, not necessarily the same as the document type as when ZPS is shown. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed, sliced by document type. Records whether at least one contextual zero prefix suggestion was used in sessions in which the contextual searchbox was shown. The document type is the intial document type when the lens overlay is invoked, not necessarily the same as the document type as when ZPS suggestion was used. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether any zero prefix contextual suggestions were shown in sessions in which the contextual searchbox was shown. niharm@google.com lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Records whether at least one contextual zero prefix suggestion was used in sessions in which the contextual searchbox was shown. juanmojica@google.com lens-chrome@google.com Recorded once per Lens session on the first query that is going to be fulfilled by the Contextual Tasks panel rather than the Lens panel. Logs the eligibility state (eligible, AIM ineligible, or Cobrowse ineligible) at the moment of the query. Ineligible queries are only possible when the Lens side panel unification feature is enabled. juanmojica@google.com lens-chrome@google.com Recorded once per Lens session on the first query that is going to be fulfilled by the Contextual Tasks panel rather than the Lens panel, split by the invocation source. Logs the eligibility state (eligible, AIM ineligible, or Cobrowse ineligible) at the moment of the query. Ineligible queries are only possible when the Lens side panel unification feature is enabled. jdonnelly@chromium.org mercerd@google.com Recorded once when the Lens Overlay feature is dismissed, enumerated by the UI entry point used or the event that triggered the dimissal. In general, it should not be possible to attempt to dismiss the feature if the overlay is not currently showing but if this happens, nothing will be recorded. In M130 and later, the "Error: Renderer exited" bucket is no longer recorded, replaced by the more fine-grained "overlay renderer exited" and "page renderer exited" buckets (two each for normal and unexpected shutdown). jdonnelly@chromium.org mercerd@google.com Recorded each time the Lens First Run Permission Notice is requested to be shown. 'Shown' is recorded when the Lens First Run Permission Notice is successfully shown. jdonnelly@chromium.org mercerd@google.com Recorded each time the user interacts with the Lens First Run Permission Notice, enumerated by those actions. christianxu@chromium.org lens-chrome@google.com Recorded when the lens overlay opens a new tab, enumerated by the source that opened it. christianxu@chromium.org lens-chrome@google.com Recorded once the Lens Overlay is dismissed. Measures the number of tabs opened by the lens overlay from invocation to dismissal. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Indicates whether or not a search was performed at any point since the overlay was invoked. jdonnelly@chromium.org mercerd@google.com Recorded once when the Lens Overlay feature is invoked, enumerated by the UI entry point used. In general, it should not be possible to attempt to invoke the feature if the overlay is already showing but if this happens, nothing will be recorded. See also Lens.Overlay.Shown, which is recoded when the overlay is successfully shown. This UMA histogram is used to track feature usage and retention, and thus should never expire. christianxu@chromium.org lens-chrome@google.com Recorded when receiving a Lens result. Measures the time elapsed between the time a Lens request was initiated and the time a response was received. nguyenbryan@chromium.org lens-chrome@google.com Recorded each time the user interacts with the Lens Permission Bubble, enumerated by those actions. nguyenbryan@chromium.org lens-chrome@google.com Recorded each time the user interacts with the Lens Permission Bubble, enumerated by those actions and sliced by invocation source. nguyenbryan@chromium.org lens-chrome@google.com Recorded each time the Lens Permission Bubble is requested to be shown, enumerated by invocation source. mercerd@chromium.org lens-chrome@google.com Records the percentage of text in the Lens OCR response that is also present in the DOM. This is a measure of how well the OCR response matches the contents of the page. Recorded once per session at the time when both the extracted DOM content and the Lens OCR response are available. This metric is not recorded if the page content is not HTML or PDF, if the DOM is too large, if the overlay closes before OCR is received, or if the OCR language is not English (since the score is not reliable for CJK languages). jdonnelly@chromium.org mercerd@google.com Recorded each time the user interacts with the Lens Overlay, enumerated by those actions and sliced by invocation source. Before M128, region selection included both tap and region selection and the region selection metric was emitted whenever the user tapped or dragged a new selection on the overlay. M128+ clients distinguish the two selection types and the tap and region selection metrics are emitted when the user taps and drags a new selection respectively. jdonnelly@chromium.org mercerd@google.com Recorded each time the user interacts with the Lens Overlay, enumerated by those actions. Before M128, region selection included both tap and region selection and the region selection metric was emitted whenever the user tapped or dragged a new selection on the overlay. M128+ clients distinguish the two selection types and the tap and region selection metrics are emitted when the user taps and drags a new selection respectively. mercerd@google.com lens-chrome@google.com Recorded once at the end of a Lens Overlay session. Measures the average FPS of the Lens Overlay, as calculated via Javascript requestAnimationFrame. This is an estimate, but should be accurate enough to provide an indication of performance changes. This is only logged when the overlay is closed asyncronously, so the Javascript has time to run the logging code. jdonnelly@chromium.org mercerd@google.com Recorded each time the Lens Permission Bubble is requested to be shown sliced by invocation source.'Shown' is recorded when the Lens Permission Bubble is successfully shown. 'Not Shown' is recorded when the Lens Permission Bubble is already showing. jdonnelly@chromium.org mercerd@google.com Recorded each time the user interacts with the Lens Permission Bubble, enumerated by those actions and sliced by invocation source. jdonnelly@chromium.org mercerd@google.com Recorded each time the Lens Permission Bubble is requested to be shown. 'Shown' is recorded when the Lens Permission Bubble is successfully shown. 'Not Shown' is recorded when the Lens Permission Bubble is already showing. jdonnelly@chromium.org mercerd@google.com Recorded each time the user interacts with the Lens Permission Bubble, enumerated by those actions. juanmojica@google.com lens-chrome-eng@google.com Records an event for the close button on the selection overlay. Recorded every time the button is shown to the user, and once if it is used in the session. This allows for measuring click-through rate. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. Measures the elapsed time between when the overlay was invoked and when it was dismissed. christianxu@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay feature is dismissed. It measures the total duration that the overlay is in the foreground. Sum of all times that the overlay tab is returned to the foreground. erikchen@chromium.org mercerd@google.com Recorded once when the lens overlay UI is shown. This UMA histogram is used to track feature usage and retention, and thus should never expire. nguyenbryan@google.com lens-chrome@google.com Recorded when an option in the lens overlay side panel more info menu is selected. juanmojica@google.com lens-chrome@google.com Recorded one after loading a result in the side panel iframe. Records the state of the side panel content, whether successful result display or the specific reason for any error that prevented display. juanmojica@google.com lens-chrome@google.com Recorded once whenever the text finder is invoked on the Lens overlay. Indicates whether the text finder was successful in finding text in the page. dianaou@google.com lens-chrome@google.com Recorded once when checking if the page context is eligible for Lens. Measures the elapsed time to check for eligibility. dianaou@google.com lens-chrome@google.com Recorded once when the side panel is closed after being opened from the overlay. Measures the elapsed time to close the side panel. dianaou@google.com lens-chrome@google.com Recorded once when a bitmap is created from a screenshot. Measures the elapsed time to create the screenshot bitmap. dianaou@google.com lens-chrome@google.com Recorded once when the bounding boxes for images on the page are fetched. Measures the elapsed time to fetch the bounding boxes. dianaou@google.com lens-chrome@google.com Recorded once when a PDF page is fetched for the Lens Overlay. Measures the elapsed time to fetch the PDF page. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the user first interacts with the overlay. Measures the elapsed time between when the overlay was invoked and when the user first interacts with the overlay. Nothing is logged when the user enters through the image context menu. christianxu@chromium.org lens-chrome@google.com Recorded once when the user first interacts with the overlay, sliced by interaction type. Measures the elapsed time between when the overlay was invoked and when the user first interacts with the overlay. dianaou@google.com lens-chrome@google.com Recorded once when the page context is retrieved. Measures the elapsed time to get the page context. dianaou@google.com lens-chrome@google.com Recorded once when a screenshot is successfully captured for the Lens Overlay. Measures the elapsed time to capture the screenshot. dianaou@google.com lens-chrome@google.com Recorded once when the page handler is bound to the C++ controller. Measures the elapsedtime for the page to bind. jdonnelly@chromium.org lens-chrome@google.com Recorded once when the Lens Overlay WebUI is ready. Measures the elapsed time between when the overlay was invoked and when its WebUI was ready. On iOS, when the LensUI is ready. benwgold@chromium.org yusuyoutube@google.com lens-chrome@google.com Whether the user supports the camera assisted search with Google Lens and if not, the reason why. Recorded only when the Lens button is tapped on the Quick Action Search Widget. Note: Gap between 04/22 - 08/23. mercerd@google.com lens-chrome@google.com Recorded after a navigation in the side panel iframe or one of its subframes. Records whether the iframe loaded successfully, or the reason for the error if it failed.