Handle interface to prerenders.

chrome/browser/prerender/prerender_link_manager.h

Index: chrome/browser/prerender/prerender_link_manager.h
diff --git a/chrome/browser/prerender/prerender_link_manager.h b/chrome/browser/prerender/prerender_link_manager.h
index aacee8bc4cdb08b906d4190ff9f760065afba0ef..96319dbfe554cb013a55b42ec23a131577b270a8 100644
--- a/chrome/browser/prerender/prerender_link_manager.h
+++ b/chrome/browser/prerender/prerender_link_manager.h
@@ -11,6 +11,7 @@
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
+#include "base/memory/weak_ptr.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "googleurl/src/gurl.h"
 
@@ -26,6 +27,7 @@ class Size;
 
 namespace prerender {
 
+class PrerenderHandle;
 class PrerenderManager;
 
 // PrerenderLinkManager implements the API on Link elements for all documents
@@ -70,14 +72,15 @@ class PrerenderLinkManager : public ProfileKeyedService {
   friend class PrerenderTest;
 
   typedef std::pair<int, int> ChildAndPrerenderIdPair;
-  typedef std::map<ChildAndPrerenderIdPair, GURL> IdPairToUrlMap;
+  typedef std::map<ChildAndPrerenderIdPair, base::WeakPtr<PrerenderHandle> >
+      IdPairToPrerenderHandleMap;
 
-  void RemovePrerender(const IdPairToUrlMap::iterator& id_url_iter);
+  void RemovePrerender(const IdPairToPrerenderHandleMap::iterator& id_url_iter);
 
   bool IsEmpty() const;
 
   PrerenderManager* manager_;
-  IdPairToUrlMap ids_to_url_map_;
+  IdPairToPrerenderHandleMap ids_to_handle_map_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderLinkManager);
 };