Add pending preloads indexed by routing id. Start preloading once we navigate.

chrome/browser/prerender/prerender_contents.h

Index: chrome/browser/prerender/prerender_contents.h
diff --git a/chrome/browser/prerender/prerender_contents.h b/chrome/browser/prerender/prerender_contents.h
index 0a7765839c3dde8731e6e67206b790a61aa33464..0781bd221ace13be26ae492b7aad2826e0cf3bf2 100644
--- a/chrome/browser/prerender/prerender_contents.h
+++ b/chrome/browser/prerender/prerender_contents.h
@@ -84,6 +84,9 @@ class PrerenderContents : public RenderViewHostDelegate,
   bool has_stopped_loading() const { return has_stopped_loading_; }
   bool prerendering_has_started() const { return prerendering_has_started_; }
 
+  virtual bool child_id(int* child_id) const;

[cbentzel, 2011/03/21 19:46:04]

Since these are not simple getters, should probably change to GetChildId and
indicate what the boolean return value indicates

[dominich, 2011/03/21 20:25:51]

Done.

+  virtual bool route_id(int* route_id) const;
+
   // Set the final status for how the PrerenderContents was used. This
   // should only be called once, and should be called before the prerender
   // contents are destroyed.