Offline blacklisting for SuggestionsService.

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 c7a09481bd9ef7199dfb280a2f6ffdb80e03e432..c6076fb032945f5df5813d24b8a665169f4ab1b5 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -28933,7 +28933,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Suggestions.FailedRequestErrorCode" enum="NetErrorCodes">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>mathp@chromium.org</owner>
   <summary>
     The counts of network error codes encountered by SuggestionsService when an
     attempt to fetch suggestions from the server fails.
@@ -28941,7 +28941,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Suggestions.FetchResponseCode">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>mathp@chromium.org</owner>
   <summary>
     The counts of HTTP response codes encountered by SuggestionsService when
     attempting to fetch suggestions from the server.
@@ -28949,15 +28949,23 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Suggestions.FetchSuccessLatency" units="milliseconds">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>mathp@chromium.org</owner>
   <summary>
     The latency of a SuggestionsService fetch that results in a success
     response.
   </summary>
 </histogram>
 
+<histogram name="Suggestions.LocalBlacklistSize" units="URLcount">
+  <owner>manzagop@chromium.org</owner>
+  <summary>
+    Number of URLs present in the Suggestions local blacklist when the
+    Suggestions service is created.
+  </summary>
+</histogram>
+
 <histogram name="Suggestions.ResponseState" enum="SuggestionsResponseState">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>mathp@chromium.org</owner>
   <summary>
     The counts of response states (such as empty or invalid) encountered by
     SuggestionsService when attempting to fetch suggestions from the server.