Safety check Chrome cleaner: extend histogram to M92

Bug: 1128901
Change-Id: I53dfcd0519a4d103032495f1dca2f0040bc3fc92
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2623927Reviewed-by: Caitlin Fischer <caitlinfischer@google.com>
Reviewed-by: Rainhard Findling <rainhard@chromium.org>
Commit-Queue: Rainhard Findling <rainhard@chromium.org>
Auto-Submit: Rainhard Findling <rainhard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#842556}

tools/metrics/histograms/histograms_xml/settings/histograms.xml

@@ -162,12 +162,12 @@ reviews. Googlers can read more about this at go/gwsq-gerrit.
 </histogram>
 
 <histogram name="Settings.SafetyCheck.ChromeCleanerResult"
-    enum="SafetyCheckChromeCleanerStatus" expires_after="M90">
+    enum="SafetyCheckChromeCleanerStatus" expires_after="M92">
   <owner>rainhard@chromium.org</owner>
   <owner>msramek@chromium.org</owner>
   <summary>
-    Resulting state of the safety check Chrome cleaner check. Value 4-9 got
-    added with M88.
+    Resulting state of the safety check Chrome cleaner check. Recorded when a
+    safety check is run by the user. Value 4-9 got added with M88.
   </summary>
 </histogram>