Remove PrerenderTracker::TryCancel* methods and associated ones, since destruction of prerender onl…

chrome/browser/prerender/prerender_manager.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_MANAGER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 152 matching lines @@
 
   // Adds a prerender for Instant Search |url| if valid. The
   // |session_storage_namespace| matches the namespace of the active tab at the
   // time the prerender is generated. Returns a caller-owned PrerenderHandle* or
   // NULL.
   PrerenderHandle* AddPrerenderForInstant(
       const GURL& url,
       content::SessionStorageNamespace* session_storage_namespace,
       const gfx::Size& size);
 
-  // If |process_id| and |view_id| refer to a running prerender, destroy
-  // it with |final_status|.
-  virtual void DestroyPrerenderForRenderView(int process_id,
-                                             int view_id,
-                                             FinalStatus final_status);
-
   // Cancels all active prerenders.
   void CancelAllPrerenders();
 
   // If |url| matches a valid prerendered page and |params| are compatible, try
   // to swap it and merge browsing histories. Returns |true| and updates
   // |params->target_contents| if a prerendered page is swapped in, |false|
   // otherwise.
   bool MaybeUsePrerenderedPage(const GURL& url,
                                chrome::NavigateParams* params);
 
@@ skipping 562 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 PrerenderManager* FindPrerenderManagerUsingRenderProcessId(
     int render_process_id);
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_