update_conditions

# File actionpack/lib/action_controller/filters.rb, line 611
        def update_conditions(filters, conditions)
          return if conditions.empty?
          if conditions[:only]
            write_inheritable_hash('included_actions', condition_hash(filters, conditions[:only]))
          elsif conditions[:except]
            write_inheritable_hash('excluded_actions', condition_hash(filters, conditions[:except]))
          end
        end