flush_output_buffer

# File actionpack/lib/action_view/helpers/capture_helper.rb, line 194
      def flush_output_buffer #:nodoc:
        if output_buffer && !output_buffer.empty?
          response.body_parts << output_buffer
          self.output_buffer = output_buffer.respond_to?(:clone_empty) ? output_buffer.clone_empty : output_buffer[0, 0]
          nil
        end
      end