Move routing to RenderFrameHost instead of RenderViewHost.

content/browser/renderer_host/render_view_host_impl.h

Index: content/browser/renderer_host/render_view_host_impl.h
diff --git a/content/browser/renderer_host/render_view_host_impl.h b/content/browser/renderer_host/render_view_host_impl.h
index 20caaf5ea73376ab1123eac26d41f84eb9b3c78b..8d629005608c774e401d94a9def22204143a1590 100644
--- a/content/browser/renderer_host/render_view_host_impl.h
+++ b/content/browser/renderer_host/render_view_host_impl.h
@@ -354,6 +354,7 @@ class CONTENT_EXPORT RenderViewHostImpl
   }
 
   // RenderWidgetHost public overrides.
+  virtual void Init() OVERRIDE;
   virtual void Shutdown() OVERRIDE;
   virtual bool IsRenderView() const OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
@@ -443,6 +444,12 @@ class CONTENT_EXPORT RenderViewHostImpl
     return is_waiting_for_unload_ack_;
   }
 
+  // TODO(nasko): Remove this accessor once RenderFrameHost moves into the frame
+  // tree.
+  RenderFrameHost* main_render_frame_host() const {
+    return main_render_frame_host_.get();
+  }
+
   // Returns whether the given URL is allowed to commit in the current process.
   // This is a more conservative check than FilterURL, since it will be used to
   // kill processes that commit unauthorized URLs.