Give prerendering RVH's RenderWidgetHostViews.

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 35 matching lines @@
     PRERENDER_MODE_DISABLED,
     PRERENDER_MODE_ENABLED,
     PRERENDER_MODE_EXPERIMENT_CONTROL_GROUP,
     PRERENDER_MODE_EXPERIMENT_PRERENDER_GROUP,
     PRERENDER_MODE_MAX
   };
 
   // Owned by a Profile object for the lifetime of the profile.
   explicit PrerenderManager(Profile* profile);
 
-  // Preloads the URL supplied.  alias_urls indicates URLs that redirect
-  // to the same URL to be preloaded. Returns true if the URL was added,
-  // false if it was not.
-  bool AddPreload(const GURL& url, const std::vector<GURL>& alias_urls,
-                  const GURL& referrer);
+  // Preloads |url| if valid.  |alias_urls| indicates URLs that redirect
+  // to the same URL to be preloaded.  |child_route_id_pair| identifies the
+  // RenderViewHost that the prerender request came from and is used to
+  // set the initial window size of the RenderViewHost used for prerendering.
+  // 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 std::vector<GURL>& alias_urls,
+      const GURL& referrer);
 
   void AddPendingPreload(const std::pair<int, int>& child_route_id_pair,
                          const GURL& url,
                          const std::vector<GURL>& alias_urls,
                          const GURL& referrer);
 
   // 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.
@@ skipping 81 matching lines @@
   // Starts and stops scheduling periodic cleanups, respectively.
   void StartSchedulingPeriodicCleanups();
   void StopSchedulingPeriodicCleanups();
 
   // Deletes stale prerendered PrerenderContents.
   // Also identifies and kills PrerenderContents that use too much
   // resources.
   void PeriodicCleanup();
 
   bool IsPrerenderElementFresh(const base::Time start) const;
+  // Destroy entries that have a pending final status or are expired.
   void DeleteOldEntries();
   virtual base::Time GetCurrentTime() const;
   virtual base::TimeTicks GetCurrentTimeTicks() const;
   virtual PrerenderContents* CreatePrerenderContents(
       const GURL& url,
       const std::vector<GURL>& alias_urls,
       const GURL& referrer);
 
   // Finds the specified PrerenderContents and returns it, if it exists.
   // Returns NULL otherwise.  Unlike GetEntry, the PrerenderManager maintains
@@ skipping 71 matching lines @@
 
   // Track time of last prerender to limit prerender spam.
   base::TimeTicks last_prerender_start_time_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 }  // prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_