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

content/browser/renderer_host/resource_dispatcher_host.cc

Index: content/browser/renderer_host/resource_dispatcher_host.cc
diff --git a/content/browser/renderer_host/resource_dispatcher_host.cc b/content/browser/renderer_host/resource_dispatcher_host.cc
index bd9f1ec1336827b1b9008f886c11f9bba1f7bfd8..6db48235f20cdecde2205f642bc555001cc1bda9 100644
--- a/content/browser/renderer_host/resource_dispatcher_host.cc
+++ b/content/browser/renderer_host/resource_dispatcher_host.cc
@@ -461,9 +461,9 @@ void ResourceDispatcherHost::BeginRequest(
   // but after the BufferedResourceHandler since it depends on the MIME
   // sniffing capabilities in the BufferedResourceHandler.
   prerender::PrerenderResourceHandler* pre_handler =
-      prerender::PrerenderResourceHandler::MaybeCreate(*request,
-                                                       context,
-                                                       handler);
+      prerender::PrerenderResourceHandler::MaybeCreate(

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

One argument per line in this case [many others are that way in
resource_dispatcher_host]

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

Done.

+          *request, context, handler, ((load_flags & net::LOAD_PRERENDER) != 0),
+          child_id, route_id);
   if (pre_handler)
     handler = pre_handler;