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 cdbc1e03a7b539b67c5c89433caa24dc467f0024..12942eaab6da1fb9524d904f0fe23bfdfb6ca842 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -18446,11 +18446,27 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="GCM.ResetStore" enum="GCMResetStoreError">
   <owner>jianli@chromium.org</owner>
+  <obsolete>
+    Deprecated in M56 in favor of GCM.ResetStoreError
+  </obsolete>
   <summary>
     Reports the problem encountered when resetting the GCM store.
   </summary>
 </histogram>
 
+<histogram name="GCM.ResetStoreError" enum="GCMResetStoreError">
+  <owner>jianli@chromium.org</owner>

[Peter Beverloo, 2016/11/02 18:05:58]

nit: zea@ since Jian doesn't work on the GCM Driver anymore

[Nicolas Zea, 2016/11/02 18:27:11]

Done.

+  <summary>
+    Reports the problem encountered when resetting the GCM store. Prior to M56
+    this was reported as &quot;GCM.ResetStore&quot;.
+  </summary>
+</histogram>
+
+<histogram name="GCM.ResetStoreReason" enum="GCMResetStoreReason">
+  <owner>zea@chromium.org</owner>
+  <summary>Reports the reason for resetting the GCM store.</summary>
+</histogram>
+
 <histogram name="GCM.RestoredIncomingMessages">
   <owner>zea@chromium.org</owner>
   <summary>
@@ -86131,6 +86147,11 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="1" label="Infinite store reset"/>
 </enum>
 
+<enum name="GCMResetStoreReason" type="int">
+  <int value="0" label="Load failure"/>
+  <int value="1" label="Checkin rejected"/>
+</enum>
+
 <enum name="GCMSendMessageStatus" type="int">
   <int value="0" label="Message queued"/>
   <int value="1" label="Message sent to the server, ACK received"/>