Modify prerendering to support having multiple session storage namespaces per tab.

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 106 matching lines @@
       const gfx::Size& size);
 
   // Adds a prerender for |url| if valid. As the prerender request is coming
   // from a source without a RenderViewHost (i.e., the omnibox) we don't have a
   // child or route id, or a referrer. This method uses sensible values for
   // those. The |session_storage_namespace| matches the namespace of the active
   // tab at the time the prerender is generated from the omnibox. Returns a
   // caller-owned PrerenderHandle*, or NULL.
   PrerenderHandle* AddPrerenderFromOmnibox(
       const GURL& url,
-      content::SessionStorageNamespace* session_storage_namespace,
+      const content::SessionStorageNamespaceMap& session_storage_namespace_map,
       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();
@@ skipping 150 matching lines @@
 
   // Adds a prerender from a pending Prerender, called by
   // PrerenderContents::StartPendingPrerenders.
   void StartPendingPrerender(
       PrerenderHandle* existing_prerender_handle,
       Origin origin,
       int process_id,
       const GURL& url,
       const content::Referrer& referrer,
       const gfx::Size& size,
-      content::SessionStorageNamespace* session_storage_namespace);
+      const content::SessionStorageNamespaceMap& session_storage_namespace_map);
 
   void DestroyPendingPrerenderData(PrerenderData* pending_prerender_data);
 
   // Utility method that is called from the virtual Shutdown method on this
   // class but is called directly from the TestPrerenderManager in the unit
   // tests.
   void DoShutdown();
 
  private:
   friend class PrerenderBrowserTest;
@@ skipping 18 matching lines @@
   // |child_id|. The |origin| specifies how the prerender was added. If |size|
   // is empty, then PrerenderContents::StartPrerendering will instead use a
   // default from PrerenderConfig. Returns a PrerenderHandle*, owned by the
   // caller, or NULL.
   PrerenderHandle* AddPrerender(
       Origin origin,
       int child_id,
       const GURL& url,
       const content::Referrer& referrer,
       const gfx::Size& size,
-      content::SessionStorageNamespace* session_storage_namespace);
+      const content::SessionStorageNamespaceMap&
+          session_storage_namespace_map);
 
   void StartSchedulingPeriodicCleanups();
   void StopSchedulingPeriodicCleanups();
 
   void EvictOldestPrerendersIfNecessary();
 
   // Deletes stale and cancelled prerendered PrerenderContents, as well as
   // WebContents that have been replaced by prerendered WebContents.
   // Also identifies and kills PrerenderContents that use too much
   // resources.
@@ skipping 16 matching lines @@
       uint8 experiment_id);
 
   // Deletes any PrerenderContents that have been added to the pending delete
   // list.
   void DeletePendingDeleteEntries();
 
   // Finds the active PrerenderData object for a running prerender matching
   // |url| and |session_storage_namespace|.
   PrerenderData* FindPrerenderData(
       const GURL& url,
-      const content::SessionStorageNamespace* session_storage_namespace);
+      const content::SessionStorageNamespaceMap& session_storage_namespace_map);
 
   // If |child_id| and |route_id| correspond to a RenderView that is an active
   // prerender, returns the PrerenderData object for that prerender. Otherwise,
   // returns NULL.
   PrerenderData* FindPrerenderDataForChildAndRoute(int child_id, int route_id);
 
   // Given the |prerender_contents|, find the iterator in active_prerender_list_
   // correponding to the given prerender.
   std::list<linked_ptr<PrerenderData> >::iterator
       FindIteratorForPrerenderContents(PrerenderContents* prerender_contents);
@@ skipping 117 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 PrerenderManager* FindPrerenderManagerUsingRenderProcessId(
     int render_process_id);
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_