Make a separate histogram for MatchComplete Final Status'es and

chrome/browser/prerender/prerender_histograms.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_PRERENDER_PRERENDER_HISTOGRAMS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_HISTOGRAMS_H_
 #pragma once
 
 #include <string>
 
@@ skipping 29 matching lines @@
   void RecordTimeUntilUsed(base::TimeDelta time_until_used,
                            base::TimeDelta max_age) const;
 
   // Record a PerSessionCount data point.
   void RecordPerSessionCount(int count) const;
 
   // Record time between two prerender requests.
   void RecordTimeBetweenPrerenderRequests(base::TimeDelta time) const;
 
   // Record a final status of a prerendered page in a histogram.
   void RecordFinalStatus(Origin origin,

[dominich, 2012/01/20 22:23:37]

If either this or the below new method are not called directly, make one private
and rename the public one to RecordFinalStatus to keep the API simple.

                          uint8 experiment_id,
                          FinalStatus final_status) const;
 
+  // Record a MatchComplete final status of a prerendered page in a histogram.
+  void RecordMatchCompleteFinalStatus(Origin origin,
+                                      uint8 experiment_id,
+                                      FinalStatus final_status) const;
+
 
   // To be called when a new prerender is added.
   void RecordPrerender(Origin origin, const GURL& url);
 
   // To be called when a new prerender is started.
   void RecordPrerenderStarted(Origin origin) const;
 
   // Called when we swap in a prerender.
   void RecordUsedPrerender(Origin origin) const;
 
@@ skipping 37 matching lines @@
   // start recording events before the first prerender occurs.
   bool seen_any_pageload_;
   bool seen_pageload_started_after_prerender_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderHistograms);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_HISTOGRAMS_H_