Add forgotten SoftwareReporter.Cleaner.HasRebooted to histograms.xml

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 60f301efb0e27b52649771cf18b8f798fddccf53..ac18f30bfde2e07f1659dda8bc037eae69464dd3 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -35946,6 +35946,14 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="SoftwareReporter.Cleaner.HasRebooted" enum="BooleanRebooted">
+  <owner>mad@chromium.org</owner>
+  <summary>
+    Whether a reboot happened since the software reporter cleaner tool has
+    finished execution with a pre-reboot exit code.
+  </summary>
+</histogram>
+
 <histogram name="SoftwareReporter.Cleaner.RunningTime" units="ms">
   <owner>mad@chromium.org</owner>
   <summary>How long it took to run the software reporter cleaner tool.</summary>
@@ -43508,6 +43516,11 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <int value="1" label="Raced"/>
 </enum>
 
+<enum name="BooleanRebooted" type="int">
+  <int value="0" label="Has not rebooted"/>
+  <int value="1" label="Rebooted"/>
+</enum>
+
 <enum name="BooleanReceived" type="int">
   <int value="0" label="Not Received"/>
   <int value="1" label="Received"/>