histograms: add missing VeyronEmmcUpgrade metrics

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 0f61c0fecf0dc666834cc4fd75295c85107bdf50..04f06c220da6e0d2eb11ec030fbf9be3b329e39e 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -44703,6 +44703,7 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="Platform.CrOSEvent" enum="CrosEventEnum">
   <owner>dkrahn@chromium.org</owner>
+  <owner>jwerner@chromium.org</owner>
   <summary>
     Generic event of interest from Chrome OS.  Intended mainly to help assess
     the frequency of rare error conditions.
@@ -80345,6 +80346,13 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="10" label="SpringPowerSupply.ChargerIdle"/>
   <int value="11" label="TPM.NonZeroDictionaryAttackCounter"/>
   <int value="12" label="TPM.EarlyResetDuringCommand"/>
+  <int value="13" label="VeyronEmmcUpgrade.Success"/>
+  <int value="14" label="VeyronEmmcUpgrade.WaitForKernelRollup"/>
+  <int value="15" label="VeyronEmmcUpgrade.WaitForFirmwareRollup"/>
+  <int value="16" label="VeyronEmmcUpgrade.BadEmmcProperties"/>
+  <int value="17" label="VeyronEmmcUpgrade.FailedDiskAccess"/>
+  <int value="18" label="VeyronEmmcUpgrade.FailedWPEnable"/>
+  <int value="19" label="VeyronEmmcUpgrade.SignatureDetected"/>
 </enum>
 
 <enum name="CrosFirstRunTutorialCompletionType" type="int">