weiguo@google.com chrome-synapse-team@google.com Records the number of candidate tabs (bound tabs or actor tabs) when trying to activate a conversation. Recorded when ActivateTabWithConversation is called. weiguo@google.com qinmin@chromium.org Records whether uploading an RFC 8188 encrypted viewport screenshot from the Glic Web Client during actor actuation succeeded (valid file token returned) or failed (null or oversized token returned). dtapuska@google.com erikchen@google.com chrome-synapse-team@google.com Recorded whenever a glic async journal event is ended. rosiey@google.com sauski@google.com Records the final computed enterprise policy state for Glic actuation. Emitted on every evaluation. Filter by "Client Count" to deduplicate. iwells@chromium.org Recorded when the AnimatedEffectView fails to load a shader resource or the resource is empty. This indicates a failure to initialize the SkSL shader effect, leading to a fallback to a simpler non-shader effect. carlosk@chromium.org harringtond@chromium.org Records when a client error dialog is shown, indicating the type of error. This may be recorded while the glic web client is in the background, and therefore, may or may not be seen by the user. harringtond@chromium.org carlosk@chromium.org Records when the glic web client reports a transient error. These errors may be presented to the user, but may not prevent further use of Glic. linnan@chromium.org shivanisha@chromium.org Records errors that occurred while attempting to retrieve image bytes from an arbitrary tab. carlosk@chromium.org harringtond@chromium.org Recorded whenever the glic web client returns from being notified that the panel will open. Records the active web client mode. skrakowi@google.com chrome-counter-abuse-alerts@google.com Records the outcome of processing a counter-abuse verdict in Glic. Recorded for each call to ProcessCounterAbuseVerdict, except when the feature is disabled, the tab/contents are not found, or the Safe Browsing service is unavailable. skrakowi@google.com chrome-counter-abuse-alerts@google.com Records the threat type of the counter-abuse verdict when an interstitial is actually shown. Recorded after all filtering (URL matching, show_interstitial check, and allowlist check) has passed. carlosk@chromium.org harringtond@chromium.org Recorded whenever a glic API request event has occurred. See GlicRequestEvent. carlosk@chromium.org harringtond@chromium.org Records the host-serving latency of glic API requests of type {ApiRequestType} (but only if that request returns a response). It tracks the time between the request being received by the host WebUI and the response being sent back to the web client, covering the entire time taken for the browser to process the request. carlosk@chromium.org harringtond@chromium.org birnie@google.com Recorded when a glic API fails with an exception. carlosk@chromium.org harringtond@chromium.org birnie@google.com Recorded when a glic API is called while the client is not being shown. Reported regardless of whether the call was successful. carlosk@chromium.org harringtond@chromium.org birnie@google.com Recorded when a glic API is called. Reported regardless of whether the call was successful. dtapuska@google.com kmg@google.com chrome-synapse-team@google.com Records a use counter histogram. Each sample represents a single RecordUseCounter call the front end has made. carlosk@chromium.org harringtond@chromium.org birnie@google.com bokan@chromium.org Records errors that occurred while attempting to extract tab context using {TabContextOperation} while the web client was in {Mode}. harringtond@chromium.org carlosk@chromium.org Records the outcome of CheckAuthBeforeLoad in AuthController, indicating why cookie sync was skipped or attempted. birnie@google.com carlosk@chromium.org Recorded when different Chrome profiles using glic attempt to register conflicting synthetic field trial groups in the same log file. This should only happen on multi profile installs that use glic on different profiles in quick succession. When analyzing metrics from a synthetic field trial this histogram will allow us to create custom queries to filter out users who may have contaminated logs from multiple profiles. birnie@google.com perrier@google.com Records the duration of a single period of Concurrent Visibility. Concurrent Visibility is defined as a continuous period of time where two or more Glic instances are visible simultaneously. Recorded when the number of visible instances drops below two. birnie@google.com perrier@google.com Records the maximum number of Glic instances that were visible simultaneously during a single period of Concurrent Visibility. Recorded when the period of Concurrent Visibility ends. acondor@google.com harringtond@google.com Measures the time it takes glic contents to load from the time the navigation commits. acondor@google.com harringtond@google.com Measures the time it takes from the Glic contents creation until the navigation commits. harringtond@chromium.org carlosk@chromium.org Records the trigger that initiated a failed cookie synchronization operation for Glic. Recorded when the multilogin operation completes with failure in OnAuthFinished, or when it times out in OnTimeout, for each trigger that requested a sync. harringtond@chromium.org carlosk@chromium.org Records the latency of the cookie synchronization operation for Glic when it fails or times out. Recorded when the multilogin operation completes with failure in OnAuthFinished or when it times out in OnTimeout. harringtond@chromium.org carlosk@chromium.org Records the latency of the cookie synchronization operation for Glic when it completes successfully. Recorded when the multilogin operation completes with success in OnAuthFinished. acondor@google.com harringtond@chromium.org Records the result of Glic cookie synchronization operation. Recorded when the operation completes with success or failure, or upon destruction when a sync is in progress. harringtond@chromium.org carlosk@chromium.org Records the trigger that initiated a successful cookie synchronization operation for Glic. Recorded when the multilogin operation completes with success in OnAuthFinished, for each trigger that requested a sync. harringtond@chromium.org carlosk@chromium.org Records the outcome of the country filtering check for Glic enablement. Recorded when GetCountryEnablement is called during profile enablement checks. Country enablement results use a custom caching strategy, so there will be less samples recorded than calls to GlicGlobalEnabling::IsCountryEnabled. dewittj@chromium.org glic@google.com Records the latency of submitting a query in Glic {Outcome}. dewittj@chromium.org glic@google.com Records the outcome of submitting a query in Glic. dewittj@chromium.org glic@google.com Records the latency of invoking the Glic window entry point {Outcome}. dewittj@chromium.org glic@google.com Records the outcome of invoking the Glic window entry point. birnie@google.com glic-dev@google.com Logs the high level content type of dropped content when a web-to-Glic drop action occurs on the Glic panel. Helps identify what kinds of content formats users intend to drop. birnie@google.com glic-dev@google.com Tracks the validation and processing outcome of a web-to-Glic drop action, occurring before Glic invocation is initiated. Includes success (successful validation) and detailed parsing or environment validation errors. Note that only the first detected validation error is recorded. haileywang@google.com wenyufu@google.com Recorded on Android when a user clicks on a Glic entry point (e.g., toolbar button or 3-dot menu). The recorded sample represents the source of the invocation. This metric is split by {TabContext} to distinguish whether the user was on the New Tab Page or another tab when they clicked the entry point. sanaakbani@google.com iwells@google.com Recorded every 15 minutes, but only if the glic feature flag is enabled. This is a rough estimate of whether a user is seeing an impression of glic entry points. There are three entry points for glic: Tabstrip, OS, and Three-Dot. The entry points are only shown if a profile is eligible to use glic. The Three-Dot menu entry is always shown but the Tabstrip and OS entrypoints can be removed based on user configuration. nyquist@chromium.org qinmin@chromium.org Records the outcome or failure reason when an incoming Glic experimental triggering message received over {Channel} is processed by the client. Recorded each time a GlicExperimentalTriggering message is received on that channel. sauski@google.com nyquist@chromium.org Records the version of Glic Experimental Opt-In dialog accepted by the user (Glic FRE, Actuation, or Experimental Triggering). Recorded when the user clicks the Accept button. huanwu@chromium.org sauski@google.com Records the type of error shown to the user on the Glic Experimental Triggering Opt-In dialog. Recorded when the dialog transitions into an error state. sauski@google.com nyquist@chromium.org Records the version of Glic Experimental Opt-In dialog declined (No Thanks) by the user (Glic FRE, Actuation, or Experimental Triggering). Recorded when the user clicks the Reject/No Thanks button. sauski@google.com nyquist@chromium.org Records the version of Glic Experimental Opt-In dialog shown to the user (Glic FRE, Actuation, or Experimental Triggering). Recorded when the dialog is successfully shown. sauski@google.com qinmin@chromium.org Records the total duration of time from when the Glic experimental triggering device opt-in dialog is opened until the user makes a decision or dismisses it, including time spent in the background. sauski@google.com qinmin@chromium.org Records the total visible duration of time that the Glic experimental triggering device opt-in dialog is actively shown to the user before they make a decision or dismiss it. Excludes time when the dialog's tab is in the background. sauski@google.com qinmin@chromium.org Records the GlicExperimentalTriggeringState of the user when an experimental actuation request is received. bryantchandler@chromium.org iwells@google.com After the user modifies the glic focus shortcut, logs a boolean that reflects whether a shortcut is set. Note: When setting a shortcut, 'disabled' will always be logged, then 'enabled'. This is because the edit process first clears the existing value. If the shortcut is cleared, only a single 'disabled' log entry is generated. sauski@google.com perrier@chromium.org Records the onboarding flow source where the user accepted Glic opt-in. erikchen@chromium.org wry@chromium.org Records the invocation source used to trigger the opening of the glic panel that led to the user accepting the Trust-First Onboarding. Recorded when the user accepts the Trust-First Onboarding. sauski@google.com perrier@chromium.org Records the onboarding flow source where the user dismissed Glic opt-in. erikchen@chromium.org wry@chromium.org Records the invocation source used to trigger the opening of the glic panel that led to the user dismissing the Trust-First Onboarding. Recorded when the user dismisses the Trust-First Onboarding. sauski@google.com perrier@chromium.org Records the onboarding flow source where the user explicitly rejected Glic opt-in. sanaakbani@google.com glic-dev@google.com Record the panel webui state any time it changes, but only when in the unconsented state. sanaakbani@google.com glic-dev@google.com Records the reason the WebUi entered the error state, but only when in the unconsented state. Recorded just before the WebUI enters the error state. sanaakbani@google.com glic-dev@google.com Record the current state when the panel is closed, but only when in the unconsented state. sauski@google.com perrier@chromium.org Records the onboarding flow source where the user was shown the Glic opt-in. erikchen@chromium.org wry@chromium.org Records the invocation source used to trigger the opening of the glic panel when the Trust-First Onboarding is shown. Recorded when the Trust-First Onboarding is shown. tommasin@chromium.org zalmashni@google.com Records the time elapsed from when the Trust-First Onboarding flow (side panel) is first shown until the user accepts it (starts chat). tommasin@chromium.org zalmashni@google.com Records the time elapsed from when the Trust-First Onboarding flow (side panel) is first shown until it is dismissed by the user (e.g. closing the side panel). erikchen@google.com perrier@google.com Recorded when user input is first submitted after completing the onboarding steps. Records the last invocation source used before user input is submitted. birnie@google.com cuianthony@google.com Records the time elapsed between the successful completion of the FRE and the first submitted query. This is logged only once per profile that accepted the FRE, when the user submits their first glic request (without restarting Chrome in between). birnie@google.com cuianthony@google.com Records the time elapsed between the successful completion of the FRE and the first submitted query. This records the same information as Glic.FreToFirstQueryTime but here we have a max time bucket of 24 hours instead of 1 hour. cuianthony@chromium.org glic@chromium.org Records specific reasons why the Glic feature is considered disabled. This provides a granular breakdown for clients that would otherwise simply report 'Feature disabled' in Glic.ProfileEnablement.DisabledReason metrics. Multiple reasons may be recorded per client. This is {Suffix}. iwells@chromium.org harringtond@chromium.org Records the amount of time a particular loading step took to complete. {LoadingStage} iwells@chromium.org harringtond@chromium.org Histogram that records which loading stage the glic host was in when loading timed out. Only recorded when loading fails due to timeout. carlosk@chromium.org birnie@chromium.org Histogram that records whether the Glic WebUI is being opened in a regular browser tab (records true; expected for development purposes) instead of its expected container types (records false). Recorded when the web client is about to be notified about it being opened. harringtond@chromium.org carlosk@chromium.org Records the web client state according to the host. {Event} carlosk@chromium.org harringtond@chromium.org Tracks the detection of the web client being unresponsive and the respective state transitions into and out of the unresponsive state. Reported upon detection of unresponsiveness and unresposive state transitions. carlosk@chromium.org harringtond@chromium.org Records for how long the web client was kept in an unresponsive state. Recorded when the state is swtiching from unresponsive to any other supported state. carlosk@chromium.org dewittj@google.com Debug histogram that tracks the internal steps that lead to the granting of AutoPlay permissions to the renderer frame hosting Glic's embedded webview. Samples are recorded when their respective events take place. birnie@google.com basiaz@google.com Records the first action that occurs on a tab that had side panel opened from various `Source`s. Recorded when a significant action occurs (tab closed, side panel closed, input submitted, conversation switched, daisy chain another tab) or records "No Action" when tab helper is destroyed before any action occurs. Only recorded for the source that triggered the opening. Tab switching and side panel closure are treated as ambiguous actions that trigger a 5-second timer before logging. This is to catch cases where a user switches tabs back and forth and then performs a more significant action like input submitted or conversation switched. This metric should eventually replace Glic.Instance.FirstActionInDaisyChainPanel. bryantchandler@google.com birnie@google.com Records the average private memory footprint of Client processes across all unhibernated Glic instances, {TriggerEvent}. bryantchandler@google.com birnie@google.com Records the average total private memory footprint of all processes across all unhibernated Glic instances, {TriggerEvent}. bryantchandler@google.com birnie@google.com Records the average private memory footprint of WebUI processes across all unhibernated Glic instances, {TriggerEvent}. birnie@google.com perrier@google.com Records every event that happens during a Glic Instance's lifecycle. This histogram answers the question: What is the total number of times each event occurred across all Glic instances? An event is recorded each time it occurs. birnie@google.com perrier@google.com Records the initial mode (Text or Audio) when a Glic Floaty is shown. Recorded each time a Floaty instance is shown with a specified initial mode. birnie@google.com perrier@google.com Records the duration that a Glic Floaty was open. Recorded each time a Floaty instance is closed. basiaz@google.com birnie@google.com Records the source of the invocation when the Glic Floaty panel becomes visible for the first time after being closed. Recorded when detached from Side Panel, when opened directly via os button / hotkey, or when the conversation is switched. In M151, the default invocation source was fixed to no longer be the TopChromeButton. birnie@google.com perrier@google.com Records the source of the invocation that caused the floaty GlicInstance to be toggled. Recorded each time the instance is toggled. See Glic.Instance.Floaty.OpenSource for the metric only including invocations that open Floaty. In M151, the default invocation source was fixed to no longer be the TopChromeButton. birnie@google.com perrier@google.com Records the {Dimension} of the Glic instance in DIP when the user stops resizing the instance showing in a floaty window. birnie@google.com perrier@google.com Records the {Dimension} of the Glic instance in DIP when the user starts resizing the instance showing in a floaty window. birnie@google.com perrier@google.com Records events that happen during a Glic Instance's lifecycle. This histogram answers the question: How many instances had each event type occur at least once? Even if an event occurs multiple times in an instance, only one event is recorded per instance. birnie@google.com perrier@google.com Records the first invocation source that was used to open a Glic instance. Recorded when an instance is opened for the first time. In M151, the default invocation source was fixed to no longer be the TopChromeButton. birnie@google.com perrier@google.com The input modes that were used during the instance's lifetime. Recorded when the instance is destroyed. Metrics recorded on instance destruction may not be recorded successfully on irregular Chrome shutdowns. wusirui@google.com naai-xfn@google.com Recorded when user input is submitted. Counts the number of points in active polylines drawn by the user at the time of submission. dtapuska@google.com liuwilliam@google.com naai-xfn@google.com Recorded when user input is submitted. The value is the number of active selection areas at the time of submission. The maximum recorded is 10. birnie@google.com perrier@google.com Records the time from when a GlicInstance is created until it is destroyed. Recorded when the GlicInstance is destroyed. This histogram has a max of 24 hours. birnie@google.com perrier@google.com Records the time from when a GlicInstance is created until it is destroyed. Recorded when the GlicInstance is destroyed. This histogram has a max of 21 days. birnie@google.com perrier@google.com Records the maximum number of tabs that were simultaneously bound to a single GlicInstance throughout its lifetime. Recorded when the GlicInstance is destroyed. Metrics recorded on instance destruction may not be recorded successfully on irregular Chrome shutdowns. birnie@google.com bryantchandler@google.com Records the private memory footprint of the Glic instance (sum of WebUI + WebClient) when the hibernation memory threshold is exceeded. birnie@google.com perrier@google.com Recorded when an unusual sequence of events is seen by glic instance metrics recorder. Usually replaces a real histogram event. Limited to the following causes: {Cause} birnie@google.com bryantchandler@chromium.org Measures the time from when a user toggles the Glic panel to be shown until the web client signals that it is ready, for panels that were backgrounded or closed before the client finished loading. Recorded each time an inactive {EmbedderType} panel finishes loading. birnie@google.com perrier@google.com Measures the time from when a user toggles the Glic panel to be shown until the web client signals that it is ready. Recorded each time a {EmbedderType} panel is shown. birnie@google.com perrier@google.com The number of new tabs that are created during a single Glic multi-instance session. Recorded when the session ends. birnie@google.com carlosk@chromium.org Records the duration of a single Glic multi-instance session. A session represents a period of continuous user engagement with a single Glic instance. It starts after the instance has been visible for a short duration (to exclude accidental opens) or when the user submits input. It ends after a period of inactivity, being hidden for too long, or when the instance is destroyed. See `chrome/browser/glic/service/glic_metrics_session_manager.h` for more details. birnie@google.com carlosk@chromium.org Records the reason why a Glic multi-instance session ended. Recorded each time a session finishes. birnie@google.com perrier@google.com Records events that happen during a Glic Sessions's lifecycle. This histogram answers the question: How many sessions had each event type occur at least once? Even if an event occurs multiple times in a session, only one event is recorded per session. birnie@google.com perrier@chromium.org The input modes that were used during a Glic multi-instance session. Recorded when the session ends. sanaakbani@google.com birnie@google.com Records the maximum number of tabs that were pinned at any time during a single session. This is recorded when the session finishes. sanaakbani@google.com birnie@google.com Boolean histogram that logs whether multiple tabs were pinned for any input submitted during a single session. This is recorded when the session finishes. birnie@google.com perrier@google.com The number of times that a single Glic session was toggled. Recorded when the session ends. birnie@google.com perrier@google.com Records the total time a Glic multi-instance session was active. Recorded when the session ends. A session is active when it is showing in an embedder in the active browser window. birnie@google.com perrier@google.com Records the total time a Glic multi-instance session was hidden. Recorded when the session ends. A session is hidden when it is not shown in any embedder. This does not account for occlusion. birnie@google.com perrier@google.com Records the total time a Glic multi-instance session was inactive. Recorded when the session ends. A session is inactive when it is not showing in any embedder of an active browser window. birnie@google.com perrier@google.com Records the total time a Glic multi-instance session was visible. Recorded when the session ends. A session is visible when it is shown in any embedder. This does not account for occlusion. birnie@google.com carlosk@chromium.org The number of turns that occurred in a single Glic multi-instance session. Recorded when the session ends. birnie@google.com perrier@google.com Records the duration of a single, uninterrupted period of time that a Glic multi-instance session was active. Recorded each time the session becomes inactive. birnie@google.com perrier@google.com Records the duration of a single, uninterrupted period of time that a Glic multi-instance session was visible. Recorded each time the session becomes hidden. birnie@google.com carlosk@chromium.org The number of Glic multi-instance sessions that occurred in a single Glic instance's lifetime. Recorded when the instance is destroyed. birnie@google.com perrier@google.com Records the duration that a Glic Side Panel was open. Recorded each time a Side Panel instance is closed. birnie@google.com perrier@google.com Records the source of the invocation when the Glic panel becomes visible for the first time after being closed. Recorded when first visible (for foreground and background instance creation), when popped back from Floaty, for a conversation switch. Background opens were not recorded before M150. This metric is not logged on tab switches. In M151, the default invocation source was fixed to no longer be the TopChromeButton. birnie@google.com perrier@google.com Records the source of the invocation that caused the side panel GlicInstance to be toggled. Recorded each time the instance is toggled. See Glic.Instance.SidePanel.OpenSource for the metric only including invocations that open the side panel. In M151, the default invocation source was fixed to no longer be the TopChromeButton. sanaakbani@google.com birnie@google.com Records the trigger responsible for pinning a tab to a Glic Instance. Recorded each time a tab is pinned. sanaakbani@google.com birnie@google.com Records the trigger responsible for unpinning a tab from a Glic Instance. Recorded each time a tab is unpinned. birnie@google.com perrier@chromium.org Records the time between the end of one Glic multi-instance session and the start of the next one within the same instance. Max bucket is {Range}. birnie@google.com perrier@google.com Records the time elapsed since the instance was last active. This is measured on reactivation as the duration from the last time the instance became inactive to the current time of activation. birnie@google.com perrier@google.com Records the time elapsed since the last active Glic instance was active. Recorded when Glic is opened and a previous active instance exists. birnie@google.com bryantchandler@chromium.org Measures the time from when a user toggles the Glic panel to be shown until the user closes, collapses, or switches away from the panel before the web client finishes loading. Recorded when an active {EmbedderType} panel is dismissed while loading. birnie@google.com perrier@google.com Records the total time a GlicInstance was active throughout its lifetime. Recorded when the GlicInstance is destroyed. birnie@google.com perrier@google.com Records the total time a GlicInstance was in the background throughout its lifetime. Recorded when the GlicInstance is destroyed. birnie@google.com perrier@google.com Records the total time a GlicInstance was hidden throughout its lifetime. Recorded when the GlicInstance is destroyed. bryantchandler@google.com birnie@google.com Records the absolute total private memory footprint of all processes across all unhibernated Glic instances, {TriggerEvent}. birnie@google.com perrier@google.com Records the total number of tabs that were bound to a single GlicInstance throughout its lifetime. Recorded when the GlicInstance is destroyed. Metrics recorded on instance destruction may not be recorded successfully on irregular Chrome shutdowns. birnie@google.com perrier@google.com Records the total time a GlicInstance was visible (in the foreground) throughout its lifetime. Recorded when the GlicInstance is destroyed. birnie@google.com perrier@google.com The number of turns that occurred in a single Glic instance's lifetime. Recorded when the instance is destroyed. Metrics recorded on instance destruction may not be recorded successfully on irregular Chrome shutdowns. {Profile} birnie@google.com perrier@google.com Records the duration of a single, uninterrupted period of time that a GlicInstance was active. Recorded each time an instance becomes inactive. birnie@google.com perrier@google.com Records the duration of a single, uninterrupted period of time that a GlicInstance was visible. Recorded each time an instance becomes hidden. birnie@google.com perrier@google.com Measures the time it takes for the Glic WebUI to load, from the `kBeginLoad` state to the `kReady` state. This is recorded for both user-visible loads and non-visible pre-warming loads, distinguished by the {Visibility} variant. cuianthony@chromium.org glic-dev@google.com Records the number of times the zoom level of the Glic panel was changed throughout the lifetime of a single Glic instance. Recorded when the instance is destroyed. bryantchandler@google.com glic-dev@chromium.org The total number of Glic instances. Recorded every time a new GlicInstance is created. bryantchandler@google.com glic-dev@chromium.org The number of actuating Glic instances. Recorded every time an actor task is created. bryantchandler@google.com glic-dev@chromium.org The number of awake Glic instances (with WebUI contents loaded). Recorded every time a GlicInstance has its WebUI contents created (either on initial creation or when waking up from hibernation). birnie@google.com carlosk@chromium.org Records the target of a conversation switch. Recorded each time SwitchConversation is called. birnie@google.com perrier@google.com Records every event that happens during a Glic Instance's lifecycle broken down by {InvocationSource} that instance was created with. This histogram answers the question: What is the total number of times each event occurred across all Glic instances created via {InvocationSource}? An event is recorded each time it occurs. In M151, the default invocation source was fixed to no longer be the TopChromeButton. andreaxg@google.com perrier@google.com Records the duration that a Glic Floaty window was open. Recorded for the first time the floaty was open for an instance without an error. In M151, the default invocation source was fixed to no longer be the TopChromeButton. birnie@google.com perrier@google.com Records events that happen during a Glic Instance's lifecycle broken down by {InvocationSource} that instance was created with. This histogram answers the question: How many instances created via {InvocationSource} had each event type occur at least once? Even if an event occurs multiple times in an instance, only one event is recorded per instance. In M151, the default invocation source was fixed to no longer be the TopChromeButton. basiaz@google.com perrier@google.com Records the duration that a Glic Side Panel was open. Recorded for the first time side panel was open for an instance without an error. Switching away from a tab with side panel counts as closure for the purpose of this metric. In M151, the default invocation source was fixed to no longer be the TopChromeButton. sanaakbani@google.com basiaz@google.com Records the duration that a Glic Side Panel was open when opened via {InvocationSource}, split by whether any user prompts were submitted while open. Recorded when the side panel is closed or tab is switched for the first time. sanaakbani@google.com basiaz@google.com Records the total number of user prompts submitted while the Glic Side Panel is initially open when opened via {InvocationSource}. Recorded when the side panel is closed or tab is switched for the first time. birnie@google.com perrier@google.com Measures the time it takes for the Glic WebUI to load, from the `kBeginLoad` state to the `kReady` state. This is recorded for both user-visible loads and non-visible pre-warming loads, distinguished by the {InvocationSource} this instance was created with and {Visibility} variant. In M151, the default invocation source was fixed to no longer be the TopChromeButton. wry@chromium.org glic-dev@google.com Records the duration of a Glic invocation, measured from when the invocation handler is started until it completes (successfully or not). wry@chromium.org glic-dev@google.com Records the duration of a Glic invocation, measured from when the invocation handler is started until it completes (successfully or not), sliced by the invocation source. vollick@chromium.org glic-dev@google.com Records the invocation source when a Glic invocation begins. Recorded each time GlicInstanceCoordinatorImpl::InvokeInternal is called. vollick@chromium.org glic-dev@google.com Records the result of a Glic invocation (success or specific error). Recorded when the invocation completes successfully or fails. vollick@chromium.org glic-dev@google.com Records the result of a Glic invocation (success or specific error) sliced by the invocation source. Recorded when the invocation completes successfully or fails. harringtond@chromium.org carlosk@chromium.org Records the outcome of the locale filtering check for Glic enablement. Recorded once per call to GetLocaleEnablement, which happens once at browser process startup. liberato@chromium.org chrome-bluefin@google.com Records the boolean result of calling MaybeReplaceNavigation. This is used to determine if a navigation was replaced with a media viewer. liberato@chromium.org chrome-bluefin@google.com Records the number of media timestamp ranges in the result when a speech recognition result is received. This can be greater than one, for example, around seeks. Zero means that there was no timing information, or the list of ranges was empty. liberato@chromium.org chrome-bluefin@google.com Records the total media context length for the page when media context is collected by glic, including any that was previously truncated for length restrictions. dewittj@google.com iwells@google.com erikchen@chromium.org Recorded when an unusual sequence of events is seen by glic metrics recorder. Usually replaces a real histogram event. dewittj@google.com iwells@google.com erikchen@chromium.org Recorded when an unusual sequence of events is seen by glic metrics recorder, at the Response Stopped event. Usually replaces a real histogram event. Limited to the following causes: {Cause} andreaxg@google.com basiaz@google.com Records the outcome of navigation capture attempts when {FeatureEnabledStatus}. Logged when the NavigationThrottle evaluates a redirection target. Logs the first failure reason in the order they're checked. perrier@chromium.org glic+metrics@google.com Records the onboarding status at the time Glic is invoked. Recorded when Glic is invoked during onboarding. Invoked is defined as a new embedder being shown for a tab or Floaty. Tab switching or focus events are not considered invoking, but daisy chaining, conversation switching, or re-opening on an already bound tab are considered invoking. sauski@google.com perrier@chromium.org Records the onboarding flow source shown to the user. perrier@chromium.org glic+metrics@google.com Records the highest onboarding status across all loaded Glic-enabled profiles. Recorded during periodic metrics provider session collection. perrier@chromium.org glic+metrics@google.com Records the count of loaded Glic-enabled profiles that have have a status which includes the {Status} state. Recorded during periodic metrics provider session collection. sanaakbani@google.com basiaz@google.com Measures the time it takes for the Glic WebUI to load, specifically for users in the unconsented state. This is recorded when the WebUI transitions to the `kReady` state. agale@chromium.org chrome-performance-ui-sea@google.com After the user modifies the glic launcher shortcut, logs a boolean that reflects whether a shortcut is set. Note: When setting a shortcut, 'disabled' will always be logged, then 'enabled'. This is because the edit process first clears the existing value. If the shortcut is cleared, only a single 'disabled' log entry is generated. erikchen@chromium.org pauladedeji@google.com Rough estimate of whether a user has a shortcut set. Recorded every 15 minutes, but only if the glic feature flag is enabled. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a page context gets annotated page content. Measure the time from start. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a page context successfully gets a screenshot (post-encoding and scaling). Measure the time from start. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a page context fails to get a screenshot. This includes any kind of error, including timeout. Measure the time from start. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a page context gets screenshot (pre-encoding and scaling). Measure the time from start. bokan@google.com dtapuska@google.com chrome-synapse-team@google.com Recorded when a page gets screenshot error from Viz. ryankalla@google.com chrome-ai-security@google.com Recorded when a page context fetcher processes iframe data after the screenshot is taken and the annotated page content is generated. Records true if any iframe info was added to the annotated page content, and false otherwise. ryankalla@google.com chrome-ai-security@google.com Recorded for each iframe-info message that was added to the annotated page content. Records whether the iframe-info origin field was populated. If false, that means we were unable to determine the src origin of the iframe. xiaochenzh@chromium.org sophiechang@chromium.org chrome-intelligence-core@google.com Records the byte size of the extracted PDF text before any truncation. Recorded once per successful PDF text extraction. xiaochenzh@chromium.org sophiechang@chromium.org chrome-intelligence-core@google.com Records the status of PDF text extraction requests. Tracks whether the extraction was successful or failed due to reasons such as the PDF load is not complete. Recorded once per PDF text extraction request. xiaochenzh@chromium.org sophiechang@chromium.org chrome-intelligence-core@google.com Records the time taken for PDF text extraction. Recorded once per successful PDF text extraction. linnan@google.com chrome-ai-security@google.com Records the total serialized byte size of the individual IframeInfo messages inside the ScreenshotInfo. Recorded when a page context fetcher successfully generates the ScreenshotInfo. linnan@google.com shivanisha@google.com chrome-synapse-team@google.com Recorded when a screenshot is processed for Glic. Records true if any part of the screenshot was redacted client-side, and false otherwise. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a page context fetcher finishes. Measure the time from start to finish. dewittj@google.com iwells@google.com After glic is triggered, measure how long it takes to show the glic panel using the {InputMode} mode excluding the cases that require re-authentication. Desktop Chrome only (Windows and Mac). fsenra@google.com dewittj@google.com Records the elapsed time between the current and last session. Recorded when the Glic panel is opened. fsenra@google.com dewittj@google.com Records the area of the glic panel in DIPS. Recorded every 3 minutes while the panel is open. fsenra@google.com dewittj@google.com Records the height of the glic panel in DIPS. Recorded every 3 minutes while the panel is open. fsenra@google.com dewittj@google.com Records the width of the glic panel in DIPS. Recorded every 3 minutes while the panel is open. fsenra@google.com iwells@google.com Records the height of the Glic panel in DIP when the user stops resizing the panel. fsenra@google.com iwells@google.com Records the width of the Glic panel in DIP when the user stops resizing the panel. erikchen@chromium.org iwells@google.com Record the panel webui state any time it changes. birnie@google.com perrier@google.com Records the reason the WebUi entered the error state. Recorded just before the WebUI enters the error state. dewittj@google.com iwells@google.com Record the current state when the panel is closed. birnie@google.com perrier@google.com Record the current state when the panel is closed for multi instance supported clients. birnie@google.com chrome-glic@google.com Records the format of the clipboard data when a user attempts to paste into the Glic UI. Recorded unconditionally upon every paste attempt into Glic. birnie@google.com chrome-glic@google.com Records the reason a paste attempt was blocked by the Glic host's clipboard eligibility checks. Only logged when a paste is actively denied (e.g. because it originated from a restricted page). andreaxg@google.com iwells@google.com Record the position of the glic panel's center point relative to the active Chrome window. Recorded when {Event}. andreaxg@google.com iwells@google.com Record the position of the glic panel relative to the current display where it's shown. The value Unknown is not expected to be recorded but is a backup. Recorded when {Event}. birnie@google.com perrier@google.com Recorded when the GlicKeyedService for a profile is created. Recorded once per profile initialization. This logs whether the setting to {Preference} is enabled. dullweber@chromium.org vollick@chromium.org jbroman@chromium.org Records the reason why Glic preloading was or was not attempted. Recorded each time we try to preload if the user has Glic enabled and went through the FRE. dewittj@chromium.org vollick@chromium.org Records whether prewarming {PrewarmDisposition} be allowed for the given prewarming source, just before prewarming (or just after the decision not to prewarm is made). dtrainor@chromium.org nyquist@chromium.org glic@google.com Records the detailed outcome of invoking the glic private prompt retrieval API. This tracks both successful and unsuccessful retrieval attempts, differentiating between local validation failures, HTTP/parsing errors, and server-reported statuses. Recorded once per API invocation. birnie@google.com glic@google.com Logged when the Glic entry point remains anchored for an onboarded user despite the profile currently failing eligibility criteria. Records the specific reasons (global or profile-level) the button is in an error or disabled state. Multiple reasons may be recorded per client. This is {Suffix}. dewittj@chromium.org glic@chromium.org Records reasons why glic might be disabled for the profile. Multiple reasons may be recorded if multiple conditions apply. This is {Suffix}. dewittj@chromium.org glic@chromium.org Records whether the profile is eligible for live features. This is {Suffix}. dewittj@chromium.org glic@chromium.org Records whether an eligible user has consented to use glic (accepted the FRE) for the profile. Excludes users that are ineligible for glic. This is {Suffix}. dewittj@chromium.org glic@chromium.org Records whether glic is enabled for the profile. This is {Suffix}. dewittj@chromium.org glic@chromium.org Records whether the primary account is fully signed in (not paused). This is {Suffix}. birnie@google.com chrome-glic@google.com Logged when a user actively attempts to interact with Glic (e.g. by clicking the toolbar button, pressing the keyboard shortcut, or invoking via context menu) and the interaction succeeds because Glic has successfully recovered to kReady from a previously unhealthy/disabled state. Records the specific unhealthy state the user's profile recovered from. dewittj@chromium.org glic@chromium.org Records the time from browser startup until glic becomes enabled for a profile. This is recorded at most once per profile per session, the first time IsEnabledForProfile returns true. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org When glic returns a response to user input, whether glic was attached or detached at the time the response started. Only emitted if glic was visible when the response started. sanaakbani@google.com birnie@google.com Records the number of tabs attached as context when a response is received from Glic. This is recorded for each response. The value is capped at 50. sanaakbani@google.com carlosk@chromium.org Records if closed captions were being shown at the moment when glic returns a response to the user. Records true if the closed captions pref was enabled by the user; records false otherwise (an error condition). carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded after a turn. Records the input mode of the original user input. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded after a turn. Records the source of the invocation of the glic window. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded anytime a response is rated. There is no guarantee of correlation with any other Response.* metrics. This exists for diagnostic purposes only. iwells@google.com erikchen@chromium.org Recorded after a turn. Records the invocation source, attachment, and input mode. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a response starts and was visible. Measures the time from a user's submitted input until a response starts and was visible to the user. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a response starts being presented to the user in {Mode}. Measures the time from when the user submitted input until a response starts being presented to the user. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a response starts being presented to the user and {ContextStatus} (*). Measures the time from when the user submitted input until a response starts being presented to the user. This is reported for all web client modes (text or audio). (*) Chrome knows if tab context was requested by the web client and the internal state of tabs' sharing status, but it cannot know for certain if tab context was or was not actually attached to requests by the web client. wry@chromium.org carlosk@chromium.org mcrouse@chromium.org Recorded after a turn. Records the number of tabs pinned for sharing at that time. liuwilliam@google.com adithyas@google.com Records the error reason when scrollTo() fails. liuwilliam@google.com adithyas@google.com Measures the time taken to match content for scrollTo(). liuwilliam@google.com adithyas@google.com Records the scroll distance (in device independent pixels) for a scroll triggered by scrollTo() liuwilliam@google.com adithyas@google.com Records the number of scrollTo() attempts in a single session. Currently configured to have a max recorded value of 100. liuwilliam@google.com adithyas@google.com Records the time between when the user submitting input and a scroll (triggered by scrollTo()) starting, when the web client is in {Mode}. gklassen@chromium.org vollick@chromium.org Records the actions taken on the Glic selection affordance (nudge or widget). This includes when the affordance is shown and when it is clicked. wusirui@google.com naai-xfn@google.com Recorded when the GlicKeyedService for a profile is created. Recorded once per profile initialization. This logs whether the profile has at least one blocked origin site exception for the inline cue. wusirui@google.com naai-xfn@google.com Recorded when the GlicKeyedService for a profile is created. Recorded once per profile initialization. This logs whether the inline cue is enabled in default content settings. gklassen@chromium.org vollick@chromium.org Records the length of the selected text (in characters) when the Glic selection nudge is clicked. gklassen@chromium.org vollick@chromium.org Records the length of the selected text (in characters) when the Glic selection widget is clicked. wusirui@google.com naai-xfn@google.com Records the number of words in the selected text when the inline cue is clicked by the user. Recorded once per click on any widget action button. wusirui@google.com naai-xfn@google.com Records the length of the selected text (in characters) whenever the inline cue is shown to the user. wusirui@google.com naai-xfn@google.com Records the number of words in the selected text whenever the inline cue is shown to the user. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Time in milliseconds from when the window opens until it is closed. Recorded each time the glic window is closed. dullweber@chromium.org erikchen@chromium.org The input modes that were used during the session. Recorded when the panel is closed. harringtond@chromium.org carlosk@chromium.org Records the browser active state when user input is submitted in a Glic session. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a session starts. Records whether the window is attached. harringtond@chromium.org carlosk@chromium.org Records the browser active state when a Glic session starts. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org Recorded when a session starts. Records the source of the invocation. carlosk@chromium.org harringtond@chromium.org erikchen@chromium.org The number of responses during the session. Recorded when the panel is closed. {Profile} harringtond@chromium.org carlosk@chromium.org Records the browser active state when a Glic response starts rendering. andreaxg@google.com glic-dev@google.com Whether at least one turn was submitted during the Glic session that was opened via {InvocationSource} in {EmbedderType}. Logged when the session (panel or floaty window) is closed. birnie@google.com harringtond@chromium.org Records the exit reason of the Glic webview. This is logged when the webview's `exit` event is fired. birnie@google.com harringtond@chromium.org Records the termination status of the Glic WebUI process. This is logged when the WebUI process associated with Glic is terminated for any reason. iwells@chromium.org basiaz@google.com Records whether the Mac alternative toolbar icon became enabled on Chrome startup. Only emitted if the other app was running during Chrome startup. True means the icon changed and false means the alt icon was already set. iwells@chromium.org basiaz@google.com Records whether the Mac alternative toolbar icon became enabled due to another app starting. Logged when the other app starts. True means the icon changed and false means the alt icon was already set. wry@chromium.org carlosk@chromium.org Records when a tab is attempted to be pinned for sharing with Glic. Records true if the pinning was successful; records false otherwise. michelleabreo@google.com skills-eng@google.com Records the progression of a user opening the skills menu and subsequently invoking a skill. This is used to measure how often users who open the UI actually proceed to execute a skill. Used to track overall engagement and drop-off rates for the core invocation flow. michelleabreo@google.com skills-eng@google.com Records the progression of user actions and system events within the AI-assisted Skill Builder flow. This metric is logged whenever the user interacts with the builder's UI (e.g., clicking the proactive promo chip, clicking 'Save as skill') or when the backend successfully completes a generation step (e.g., generation of the skill prompt). This acts as a high-level funnel to measure engagement and drop-off during the AI-driven skill creation process. michelleabreo@google.com skills-eng@google.com Records key events within the Skills section of the Glic WebClient. This is logged immediately when a user interacts with the UI (such as invoking a skill, clicking 'Add Skill', or opening the menu) or when a notable system state transition occurs (such as Gemini successfully generating a prompt). This serves as a top-level metric to measure user engagement, feature distribution, and funnel progression directly within the Glic panel. birnie@google.com perrier@google.com Records the depth of a tab in a daisy chain. Depth 1 means opened directly from Glic. Depth 2 means opened from a tab that was opened from Glic, and so on. Recorded each time a tab is bound via daisy chaining from another tab. birnie@google.com carlosk@chromium.org Records the number of unique Glic instances a tab was bound to during its lifetime. Recorded when the tab is destroyed, but only if it was bound to at least one instance. birnie@google.com carlosk@chromium.org Records the number of unique Glic instances a tab was pinned to during its lifetime. Recorded when the tab is destroyed, but only if it was pinned to at least one instance. carlosk@chromium.org harringtond@chromium.org Recorded whenever the glic web client requests to obtain PDF contents from the focused tab. Records an enum sample that answers a) is the main document a PDF (based on its MIME type) and b) were PDF contents actually found within the web page (only if Chrome's PDF plugin is actually active). carlosk@chromium.org vollick@chromium.org Recorded when an attempt to send an image as context to glic is completed. Precisely, this records the time from the start of an image context sharing request until when the data finishes being sent via glic.mojom. It does not capture any subsequent processing time by the web client. This is not recorded if sharing fails. carlosk@chromium.org vollick@chromium.org Recorded after an attempt is made to share an image with glic. carlosk@chromium.org harringtond@chromium.org Recorded when the glic web client reports that it has completed uploading all necessary tab context. Reports the time taken to upload. Note that upload may happen none or many times for any given query, and this may report the wrong timings if the web client performs concurrent upload operations. sanaakbani@google.com birnie@google.com Records the number of tabs selected when pinning to an existing conversation from the tab context menu. sanaakbani@google.com birnie@google.com Records the number of tabs selected when pinning to a new conversation from the tab context menu. sanaakbani@google.com birnie@google.com Records the number of tabs selected when unpinning from the tab context menu. sophiechang@chromium.org dewittj@chromium.org Records whether the Glic-eligible profiles are enabled for tiered rollout. Emitted in every UMA record from the current session (at the time the record is finalized), but only if there is at least one Glic-eligible profile. qinmin@google.com perrier@google.com Records whether a browser actuation result submitted by the web client is a retry of a previous actuation in the same turn. Recorded for each actuation result submitted. birnie@google.com perrier@google.com Records the time from when the web client sends a browser actuation result over the network until a response starts being presented to the user. Recorded for each turn in a Glic instance where an actuation result was submitted. qinmin@google.com perrier@google.com Measures the time from when the web client sends a browser actuation result until a response stops. Recorded for each turn where an actuation result was submitted. qinmin@google.com perrier@google.com Measures the time from when the web client sends a browser actuation result until a response stops for the specific cause: {Cause}. Recorded for each turn where an actuation result was submitted. birnie@google.com perrier@google.com Recorded at the end of a turn response from the server indicating the time the entire request/response sequence took. birnie@google.com perrier@google.com Records the last invocation source that was used to open the Glic panel for a given turn. Recorded at the end of each turn. sanaakbani@google.com birnie@google.com Records the time from when the user submitted input until a response stops for a given number of attached tabs. Recorded after each turn. basiaz@google.com birnie@google.com Recorded when user input is submitted for a turn in a Glic instance. Indicates the submission prompt type (e.g. typed text, zero state suggestions, auto prompt, audio). birnie@google.com perrier@google.com Records the time from when the user submitted input until a response starts being presented to the user. Recorded for each turn in a Glic instance. birnie@google.com perrier@google.com Records the time from when the user submitted input until a response starts being presented to the user, for a given input mode. birnie@google.com perrier@google.com Records the time from when the user submitted input until a response starts being presented to the user, for turns where {TabContext} (*). This is reported for all web client modes (text or audio). (*) Chrome knows if tab context was requested by the web client and the internal state of tabs' sharing status, but it cannot know for certain if tab context was or was not actually attached to requests by the web client. birnie@google.com perrier@google.com Measures the time from a user's submitted input until a response stops. Recorded for each turn in a Glic instance. birnie@google.com perrier@google.com Records the source of the turn, including the UI mode (Side Panel or Floaty) and the input mode (Text or Audio). Recorded at the end of each turn. erikchen@chromium.org alimariam@google.com Records whether the user is using the default or custom hotkey. Recorded when the user presses the hotkey. acondor@chromium.org bryantchandler@chromium.org glic-dev@google.com Logged when a Glic WebContents warming container is created in the warming pool. Differentiates the reason or source of the EnsurePreload call. harringtond@chromium.org glic-dev@google.com Logged when the Glic WebContents warming pool is used to provide a pre-warmed WebContents. Reports whether the container was pre-warmed (hit), not pre-warmed (cold), pre-warmed but expired before use, pre-warmed but crashed before use, or not pre-warmed because the pool was disabled by memory pressure. harringtond@chromium.org glic-dev@google.com Logged when a WebContents container in the warming pool expires. Reports why the container was or was not automatically reloaded. harringtond@chromium.org glic-dev@google.com Logged when the Glic WebContents warming pool reports a 'Hit' status. Records the time elapsed since the container was initially created. harringtond@chromium.org glic-dev@google.com Logged when the Glic WebContents warming pool reports a miss (Cold, Expired, or Crashed) but a creation timestamp for a previous container was available. Records the time elapsed since that container was initially created. harringtond@chromium.org glic-dev@google.com Tracks the fate of each warmed container in the Glic warming pool. Logged when the container is used, expires, crashes, or is deleted on chrome closed. Note that containers created and immediately returned from TakeContainer are not tracked. This only covers containers that were warmed before being taken. basiaz@google.com birnie@chromium.org Recorded when the Glic WebContent context menu item is evaluated for display. Records true if menu item will be shown, false otherwise. basiaz@google.com birnie@chromium.org Logs when the Glic context menu item was shown and ignored, or executed when the user opened the context menu on a {GlicContextType}. basiaz@google.com birnie@google.com Logged during the detection of the YouTube 'Ask' button whose presence is used to offer a summarize video suggestion in Glic. This is a diagnostic metric logged on YT pages to understand if the button was found and how many tries (max is 2) it took to find it. cuianthony@chromium.org glic-dev@google.com The zoom action taken by the user in the Glic UI. Recorded when the user presses the zoom in, zoom out, or reset zoom keyboard shortcuts while the Glic panel is focused, or uses scroll controls to zoom. cuianthony@chromium.org glic-dev@google.com The zoom action taken by the user on the Glic UI. Recorded for {GlicZoomSourceModifier}. cuianthony@chromium.org glic-dev@google.com The zoom level of the Glic webview as a percentage. Recorded {Suffix}.