update_engine: Add metrics to duration to apply an update.
Add new metrics that record the time between an update being seen by the client
to the time when the update is actually applied.
This metric will be recorded only for Enterprise enrolled devices.
UpdateEngine.SuccessfulUpdate.TimeRestrictedDurationFromSeenToUpdateMinutes is
recorded when an update is applied while the
DeviceAutoUpdateTimeRestrictions device policy exists.
UpdateEngine.SuccessfulUpdate.DurationFromSeenToUpdateMinutes is
recorded when an update is applied without the policy.
BUG=chromium:852860
TEST=run updater manually and checked chrome://histograms
Change-Id: I4dd54fc4404ef2e66902113617841808c1f9e616
Reviewed-on: https://chromium-review.googlesource.com/1179230
Commit-Ready: May Lippert <maybelle@chromium.org>
Tested-by: May Lippert <maybelle@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Sen Jiang <senj@chromium.org>
diff --git a/metrics_reporter_interface.h b/metrics_reporter_interface.h
index b677aaa..fce8bfd 100644
--- a/metrics_reporter_interface.h
+++ b/metrics_reporter_interface.h
@@ -226,6 +226,22 @@
virtual void ReportKeyVersionMetrics(int kernel_min_version,
int kernel_max_rollforward_version,
bool kernel_max_rollforward_success) = 0;
+
+ // Helper function to report the duration between an update being seen by the
+ // client to the update being applied. Updates are not always immediately
+ // applied when seen, several enterprise policies can affect when an update
+ // would actually be downloaded and applied.
+ //
+ // This metric should only be reported for enterprise enrolled devices.
+ //
+ // The following metrics are reported from this function:
+ // If |has_time_restriction_policy| is false:
+ // |kMetricSuccessfulUpdateDurationFromSeenDays|
+ // If |has_time_restriction_policy| is true:
+ // |kMetricSuccessfulUpdateDurationFromSeenTimeRestrictedDays|
+ //
+ virtual void ReportEnterpriseUpdateSeenToDownloadDays(
+ bool has_time_restriction_policy, int time_to_update_days) = 0;
};
} // namespace chromeos_update_engine