Add RenderFrameHostDelegate and plumb it through all the necessary classes.

content/browser/frame_host/render_frame_host_factory.cc

Index: content/browser/frame_host/render_frame_host_factory.cc
===================================================================
--- content/browser/frame_host/render_frame_host_factory.cc	(revision 238504)
+++ content/browser/frame_host/render_frame_host_factory.cc	(working copy)
@@ -15,17 +15,19 @@
 // static
 scoped_ptr<RenderFrameHostImpl> RenderFrameHostFactory::Create(
     RenderViewHostImpl* render_view_host,
+    RenderFrameHostDelegate* delegate,
     FrameTree* frame_tree,
     int routing_id,
     bool is_swapped_out) {
   if (factory_) {
     return factory_->CreateRenderFrameHost(render_view_host,
+                                           delegate,
                                            frame_tree,
                                            routing_id,
                                            is_swapped_out).Pass();
   }
   return make_scoped_ptr(new RenderFrameHostImpl(
-      render_view_host, frame_tree, routing_id, is_swapped_out));
+      render_view_host, delegate, frame_tree, routing_id, is_swapped_out));
 }
 
 // static