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- // 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
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