Add to the prerender history when no PrerenderContents is created.

chrome/browser/prerender/prerender_manager.h

Index: chrome/browser/prerender/prerender_manager.h
diff --git a/chrome/browser/prerender/prerender_manager.h b/chrome/browser/prerender/prerender_manager.h
index c91322d2a6582fd4381ab758d72d01ff3fd46f08..95d78d5645568f5fa7822b476800922052a316bd 100644
--- a/chrome/browser/prerender/prerender_manager.h
+++ b/chrome/browser/prerender/prerender_manager.h
@@ -649,12 +649,13 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
   void DestroyAndMarkMatchCompleteAsUsed(PrerenderContents* prerender_contents,
                                          FinalStatus final_status);
 
-  // Record a final status of a prerendered page in a histogram.
+  // Records the final status a prerender in the case that a PrerenderContents
+  // was never created, and also adds a PrerenderHistory entry.
   // This is a helper function which will ultimately call
   // RecordFinalStatusWthMatchCompleteStatus, using MATCH_COMPLETE_DEFAULT.
-  void RecordFinalStatus(Origin origin,
-                         uint8 experiment_id,
-                         FinalStatus final_status) const;
+  void RecordFinalStatusWithoutCreatingPrerenderContents(

[mmenke, 2014/05/12 19:23:47]

Open to ideas for shorter method names, but I think this makes it much clearer
when it should be called.

+      const GURL& url, Origin origin, uint8 experiment_id,
+      FinalStatus final_status) const;
 
   // Returns whether prerendering is currently enabled for this manager.
   // Must be called on the UI thread.