Prerender: Remove MatchComplete

chrome/browser/prerender/prerender_contents.h

 // Copyright (c) 2012 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_CONTENTS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 68 matching lines @@
     virtual void OnPrerenderStopLoading(PrerenderContents* contents);
 
     // Signals that the prerender has had its 'DOMContentLoaded' event.
     virtual void OnPrerenderDomContentLoaded(PrerenderContents* contents);
 
     // Signals that the prerender has stopped running. A PrerenderContents with
     // an unset final status will always call OnPrerenderStop before being
     // destroyed.
     virtual void OnPrerenderStop(PrerenderContents* contents) = 0;
 
-    // Signals that this prerender has just become a MatchComplete replacement.
-    virtual void OnPrerenderCreatedMatchCompleteReplacement(
-        PrerenderContents* contents, PrerenderContents* replacement);
-
    protected:
     Observer();
     virtual ~Observer() = 0;
   };
 
   // Indicates how this PrerenderContents relates to MatchComplete. This is to
   // figure out which histograms to use to record the FinalStatus, Match (record
   // all prerenders and control group prerenders) or MatchComplete (record
   // running prerenders only in the way they would have been recorded in the
   // control group).
+  // TODO(pasko): Remove the dead code associated with non-default
+  // MatchCompleteStatus.
   enum MatchCompleteStatus {
     // A regular prerender which will be recorded both in Match and
     // MatchComplete.
     MATCH_COMPLETE_DEFAULT,
     // A prerender that used to be a regular prerender, but has since been
     // replaced by a MatchComplete dummy. Therefore, we will record this only
     // for Match, but not for MatchComplete.
     MATCH_COMPLETE_REPLACED,
     // A prerender that is a MatchComplete dummy replacing a regular prerender.
     // In the control group, our prerender never would have been canceled, so
@@ skipping 165 matching lines @@
   // should only be called once, and should be called before the prerender
   // contents are destroyed.
   void SetFinalStatus(FinalStatus final_status);
 
   // These call out to methods on our Observers, using our observer_list_. Note
   // that NotifyPrerenderStop() also clears the observer list.
   void NotifyPrerenderStart();
   void NotifyPrerenderStopLoading();
   void NotifyPrerenderDomContentLoaded();
   void NotifyPrerenderStop();
-  void NotifyPrerenderCreatedMatchCompleteReplacement(
-      PrerenderContents* replacement);
 
   // Called whenever a RenderViewHost is created for prerendering.  Only called
   // once the RenderViewHost has a RenderView and RenderWidgetHostView.
   virtual void OnRenderViewHostCreated(
       content::RenderViewHost* new_render_view_host);
 
   content::NotificationRegistrar& notification_registrar() {
     return notification_registrar_;
   }
 
@@ skipping 103 matching lines @@
   // A running tally of the number of bytes this prerender has caused to be
   // transferred over the network for resources.  Updated with AddNetworkBytes.
   int64_t network_bytes_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderContents);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_