Change RenderFrame to use InterfaceRegistry et al.

services/shell/public/cpp/interface_registry.h

Index: services/shell/public/cpp/interface_registry.h
diff --git a/services/shell/public/cpp/interface_registry.h b/services/shell/public/cpp/interface_registry.h
index 81bd3654b1e4e17646889fc8dddfc44d484351de..1f4f22c3b13850877848771a68378fab1b776c4e 100644
--- a/services/shell/public/cpp/interface_registry.h
+++ b/services/shell/public/cpp/interface_registry.h
@@ -66,6 +66,8 @@ class InterfaceRegistry : public mojom::InterfaceProvider {
 
   void Bind(mojom::InterfaceProviderRequest local_interfaces_request);
 
+  base::WeakPtr<InterfaceRegistry> GetWeakPtr();
+
   // Allows |Interface| to be exposed via this registry. Requests to bind will
   // be handled by |factory|. Returns true if the interface was exposed, false
   // if Connection policy prevented exposure.
@@ -115,6 +117,8 @@ class InterfaceRegistry : public mojom::InterfaceProvider {
 
   NameToInterfaceBinderMap name_to_binder_;
 
+  base::WeakPtrFactory<InterfaceRegistry> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(InterfaceRegistry);
 };