included

# File actionpack/lib/action_controller/flash.rb, line 29
    def self.included(base)
      base.class_eval do
        include InstanceMethods

        alias_method_chain :perform_action, :flash
        alias_method_chain :reset_session,  :flash
        alias_method_chain :redirect_to,    :flash

        helper_method :alert
        helper_method :notice
      end
    end