pick_layout

# File actionpack/lib/action_controller/layout.rb, line 276
      def pick_layout(template_with_options, options)
        if template_with_options
          case layout = options[:layout]
            when FalseClass
              nil
            when NilClass, TrueClass
              active_layout if action_has_layout?
            else
              active_layout(layout)
          end
        else
          active_layout if action_has_layout?
        end
      end