// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "components/metrics/metrics_pref_names.h" namespace metrics { namespace prefs { // Set once, to the current epoch time, on the first run of chrome on this // machine. Attached to metrics reports forever thereafter. // Note: the 'uninstall_metrics' name is a legacy name and doesn't mean much. const char kInstallDate[] = "uninstall_metrics.installation_date2"; // A provisional metrics client GUID used for field trial group assignments // before metrics reporting consent is known (i.e., during first run). This GUID // is never reported directly. However, if the user enables UMA, this // provisional client GUID becomes the metrics client GUID (see // |kMetricsClientID|), and this pref is cleared. In that case, the GUID may // be reported. // Note: This GUID is stored in prefs because it is possible that the user // closes Chrome during the FRE. We re-use this GUID in subsequent FRE runs // until metrics reporting consent is truly known. const char kMetricsProvisionalClientID[] = "user_experience_metrics.provisional_client_id"; // The metrics client GUID. // Note: The name client_id2 is a result of creating // new prefs to do a one-time reset of the previous values. const char kMetricsClientID[] = "user_experience_metrics.client_id2"; // An enum value indicating the default value of the enable metrics reporting // checkbox shown during first-run. If it's opt-in, then the checkbox defaulted // to unchecked, if it's opt-out, then it defaulted to checked. This value is // only recorded during first-run, so older clients will not set it. The enum // used for the value is metrics::MetricsServiceClient::EnableMetricsDefault. const char kMetricsDefaultOptIn[] = "user_experience_metrics.default_opt_in"; // Array of dictionaries that are each UMA logs that were supposed to be sent in // the first minute of a browser session. These logs include things like crash // count info, etc. const char kMetricsInitialLogs[] = "user_experience_metrics.initial_logs2"; // An dictionary of information about the unsent initial logs, it was // recorded when the unsent log is persisted and will be written into the // metrics at the next browser starts up. const char kMetricsInitialLogsMetadata[] = "user_experience_metrics.unsent_log_metadata.initial_logs"; // Low entropy source values. The new source (with suffix "3") was created // because the old source (with suffix "2") is biased in the wild. Clients which // have an old source still incorporate it into the high entropy source, to // avoid reshuffling experiments using high entropy, but use the new source for // experiments requiring low entropy. Newer clients only have the new source, // and use it both for low entropy experiments to to incorporate into the high // entropy source for high entropy experiments. The pseudo low entropy source // is not used for trial assignment, but only for statistical validation. It // should be assigned in the same way as the new source (with suffix "3"). const char kMetricsLowEntropySource[] = "user_experience_metrics.low_entropy_source3"; const char kMetricsOldLowEntropySource[] = "user_experience_metrics.low_entropy_source2"; const char kMetricsPseudoLowEntropySource[] = "user_experience_metrics.pseudo_low_entropy_source"; // A machine ID used to detect when underlying hardware changes. It is only // stored locally and never transmitted in metrics reports. const char kMetricsMachineId[] = "user_experience_metrics.machine_id"; // Array of dictionaries that are each UMA logs that were not sent because the // browser terminated before these accumulated metrics could be sent. These // logs typically include histograms and memory reports, as well as ongoing // user activities. const char kMetricsOngoingLogs[] = "user_experience_metrics.ongoing_logs2"; // An dictionary that is same as kUnsentLogMetkMetricsInitialLogsMetadata, // but for the ongoing logs. const char kMetricsOngoingLogsMetadata[] = "user_experience_metrics.unsent_log_metadata.ongoing_logs"; // Boolean that indicates a cloned install has been detected and the metrics // client id and low entropy source should be reset. const char kMetricsResetIds[] = "user_experience_metrics.reset_metrics_ids"; #if BUILDFLAG(IS_ANDROID) // Boolean that determines whether to use the new sampling trial // "PostFREFixMetricsAndCrashSampling" and feature "PostFREFixMetricsReporting" // to control sampling on Android Chrome. This is set to true when disabling // metrics reporting, or on start up if metrics reporting is not consented to // (including new users going through their first run). As a result, all new UMA // users should have this pref set to true. // Note: This exists due to a bug in which the old sampling rate was not being // applied correctly. In order for the fix to not affect the overall sampling // rate, this pref controls what trial/feature to use to determine whether the // client is sampled. See crbug/1306481. const char kUsePostFREFixSamplingTrial[] = "user_experience_metrics.use_post_fre_fix_sampling_trial"; #endif // BUILDFLAG(IS_ANDROID) // Boolean that specifies whether or not crash reporting and metrics reporting // are sent over the network for analysis. const char kMetricsReportingEnabled[] = "user_experience_metrics.reporting_enabled"; // Date/time when the user opted in to UMA and generated the client id most // recently (local machine time, stored as a 64-bit time_t value). const char kMetricsReportingEnabledTimestamp[] = "user_experience_metrics.client_id_timestamp"; // The metrics client session ID. const char kMetricsSessionID[] = "user_experience_metrics.session_id"; // The prefix of the last-seen timestamp for persistent histogram files. // Values are named for the files themselves. const char kMetricsLastSeenPrefix[] = "user_experience_metrics.last_seen."; // Array of the number of samples in the memory mapped file. const char kMetricsFileMetricsMetadata[] = "user_experience_metrics.file_metrics_metadata"; // The number of times the client has been reset due to cloned install. const char kClonedResetCount[] = "cloned_install.count"; // The first timestamp when we reset a cloned client’s client id. This is only // set once. Attached to metrics reports forever thereafter. const char kFirstClonedResetTimestamp[] = "cloned_install.first_timestamp"; // The last timestamp the client is reset due to cloned install. This will be // updated every time we reset the client due to cloned install. const char kLastClonedResetTimestamp[] = "cloned_install.last_timestamp"; // A time stamp at which time the browser was known to be alive. Used to // evaluate whether the browser crash was due to a whole system crash. // At minimum this is updated each time the "exited_cleanly" preference is // modified, but can also be optionally updated on a slow schedule. const char kStabilityBrowserLastLiveTimeStamp[] = "user_experience_metrics.stability.browser_last_live_timestamp"; // Number of times the application exited uncleanly since the last report // due to a gms core update. const char kStabilityCrashCountDueToGmsCoreUpdate[] = "user_experience_metrics.stability.crash_count_due_to_gms_core_update"; // True if the previous run of the program exited cleanly. const char kStabilityExitedCleanly[] = "user_experience_metrics.stability.exited_cleanly"; // The total number of samples that will be lost if ASSOCIATE_INTERNAL_PROFILE // isn't enabled since the previous stability recorded, this is different than // the previous browser run, because one file was just uploaded before the // stability is recorded. const char kStabilityFileMetricsUnsentSamplesCount[] = "user_experience_metrics.stability.file_metrics_unsent_samples_count"; // The number of the unsent files at the time the stability recorded. const char kStabilityFileMetricsUnsentFilesCount[] = "user_experience_metrics.stability.file_metrics_unsent_files_count"; // The GMS core version used in Chrome. const char kStabilityGmsCoreVersion[] = "user_experience_metrics.stability.gms_core_version"; #if BUILDFLAG(IS_ANDROID) // Number of times the application was launched since last report. Used on // Android platforms as WebView may still be interested in this metric. const char kStabilityLaunchCount[] = "user_experience_metrics.stability.launch_count"; // Number of times a page load event occurred since the last report. const char kStabilityPageLoadCount[] = "user_experience_metrics.stability.page_load_count"; // Number of times a renderer process successfully launched since the last // report. Used on Android platforms as WebView may still be interested in this // metric. const char kStabilityRendererLaunchCount[] = "user_experience_metrics.stability.renderer_launch_count"; #endif // Base64 encoded serialized UMA system profile proto from the previous session. const char kStabilitySavedSystemProfile[] = "user_experience_metrics.stability.saved_system_profile"; // SHA-1 hash of the serialized UMA system profile proto (hex encoded). const char kStabilitySavedSystemProfileHash[] = "user_experience_metrics.stability.saved_system_profile_hash"; // Build time, in seconds since an epoch, which is used to assure that stability // metrics reported reflect stability of the same build. const char kStabilityStatsBuildTime[] = "user_experience_metrics.stability.stats_buildtime"; // Version string of previous run, which is used to assure that stability // metrics reported under current version reflect stability of the same version. const char kStabilityStatsVersion[] = "user_experience_metrics.stability.stats_version"; // Number of times the application exited uncleanly and the system session // embedding the browser session ended abnormally since the last report. // Windows only. const char kStabilitySystemCrashCount[] = "user_experience_metrics.stability.system_crash_count"; // Dictionary for measuring cellular data used by UKM service during last 7 // days. const char kUkmCellDataUse[] = "user_experience_metrics.ukm_cell_datause"; // Dictionary for measuring cellular data used by UMA service during last 7 // days. const char kUmaCellDataUse[] = "user_experience_metrics.uma_cell_datause"; // Dictionary for measuring cellular data used by user including chrome services // per day. const char kUserCellDataUse[] = "user_experience_metrics.user_call_datause"; // String for holding user ID associated with the current ongoing UMA // log. This pref will be used to determine whether to send metrics in case // of a crash. const char kMetricsCurrentUserId[] = "metrics.current_user_id"; } // namespace prefs } // namespace metrics