Mojo: Use InterfaceFactory<Interface> for service registration

mojo/dbus/dbus_external_service.h

Index: mojo/dbus/dbus_external_service.h
diff --git a/mojo/dbus/dbus_external_service.h b/mojo/dbus/dbus_external_service.h
index 77e9e4be2df38d630a280a3f25e58405f8e3c105..da383d00e248c9ae786cd14b73d8aaeaa42d0af3 100644
--- a/mojo/dbus/dbus_external_service.h
+++ b/mojo/dbus/dbus_external_service.h
@@ -50,8 +50,10 @@ class DBusExternalServiceBase {
 };
 
 template <class ServiceImpl>
-class DBusExternalService : public DBusExternalServiceBase,
-                            public ApplicationDelegate {
+class DBusExternalService
+    : public DBusExternalServiceBase,
+      public ApplicationDelegate,
+      public InterfaceFactory<typename ServiceImpl::Implements> {
  public:
   explicit DBusExternalService(const std::string& service_name)
       : DBusExternalServiceBase(service_name) {
@@ -60,10 +62,16 @@ class DBusExternalService : public DBusExternalServiceBase,
 
   virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
       MOJO_OVERRIDE {
-    connection->AddService<ServiceImpl>();
+    connection->AddServiceFactory(this);
     return true;
   }
 
+  virtual void Create(ApplicationConnection* connection,
+                      InterfaceRequest<typename ServiceImpl::Implements>
+                          request) MOJO_OVERRIDE {
+    mojo::BindToRequest(new ServiceImpl, &request);
+  }
+
  protected:
   virtual void Connect(ScopedMessagePipeHandle client_handle) OVERRIDE {
     external_service_.reset(BindToPipe(new Impl(this), client_handle.Pass()));