Cancel prerenders that spawn post requests.

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 26 matching lines @@
 
 namespace prerender {
 
 void HandlePrefetchTagOnUIThread(
     const base::WeakPtr<PrerenderManager>& prerender_manager,
     const std::pair<int, int>& child_route_id_pair,
     const GURL& url,
     const GURL& referrer,
     bool make_pending);
 
+void DestroyPreloadForChildRouteIdPairOnUIThread(
+    const base::WeakPtr<PrerenderManager>& prerender_manager_weak_ptr,
+    const std::pair<int, int>& child_route_id_pair,
+    FinalStatus final_status);
+
 // PrerenderManager is responsible for initiating and keeping prerendered
 // views of webpages. All methods must be called on the UI thread unless
 // indicated otherwise.
 class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
                          public base::NonThreadSafe {
  public:
   // PrerenderManagerMode is used in a UMA_HISTOGRAM, so please do not
   // add in the middle.
   enum PrerenderManagerMode {
     PRERENDER_MODE_DISABLED,
@@ skipping 14 matching lines @@
   // Returns true if the URL was added, false if it was not.
   bool AddPreload(
       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(
+      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);
 
   // Allows PrerenderContents to remove itself when prerendering should
   // be cancelled.
   void RemoveEntry(PrerenderContents* entry);
 
@@ skipping 151 matching lines @@
 
   // Track time of last prerender to limit prerender spam.
   base::TimeTicks last_prerender_start_time_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_