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-rw-r--r--tools/metrics/histograms/histograms.xml11
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 6f48c9a..c904adf 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -28647,6 +28647,17 @@ Therefore, the affected-histogram name has to have at least one dot in it.
</summary>
</histogram>
+<histogram name="UpdateEngine.Rollback.Result" enum="BooleanSuccess">
+ <owner>zeuthen@chromium.org</owner>
+ <summary>
+ Whether rollback worked.
+
+ This is reported every time there's a rollback request.
+
+ This metric is specific to ChromeOS.
+ </summary>
+</histogram>
+
<histogram name="UpdateEngine.SuccessfulUpdate.AttemptCount" units="count">
<owner>zeuthen@chromium.org</owner>
<summary>