Cancel prerenders for pages that call window.print()

chrome/browser/prerender/prerender_manager.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_MANAGER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 #pragma once
 
 #include <list>
 #include <map>
@@ skipping 74 matching lines @@
       const std::pair<int, int>& child_route_id_pair,
       const GURL& url,
       const GURL& referrer);
 
   void AddPendingPreload(const std::pair<int, int>& child_route_id_pair,
                          const GURL& url,
                          const GURL& referrer);
 
   // Destroy all preloads for the given child route id pair and assign a final
   // status to them.
-  void DestroyPreloadForChildRouteIdPair(
+  bool DestroyPreloadForChildRouteIdPair(
       const std::pair<int, int>& child_route_id_pair,
       FinalStatus final_status);
 
   // For a given TabContents that wants to navigate to the URL supplied,
   // determines whether a preloaded version of the URL can be used,
   // and substitutes the prerendered RVH into the TabContents.  Returns
   // whether or not a prerendered RVH could be used or not.
   bool MaybeUsePreloadedPage(TabContents* tab_contents, const GURL& url);
   bool MaybeUsePreloadedPageOld(TabContents* tab_contents, const GURL& url);
 
@@ skipping 193 matching lines @@
   base::TimeTicks last_prerender_start_time_;
 
   std::list<TabContentsWrapper*> old_tab_contents_list_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_