t>
      </core-menu>
    </core-dropdown>
  </template>
  <script>
    Polymer('core-menu-button', {

      publish: {

        /**
         * The icon to display.
         * @attribute icon
         * @type string
         */
        icon: 'dots',

        src: '',

        /**
         * Set to true to open the menu.
         * @attribute opened
         * @type boolean
         */
        opened: false,

        /**
         * Set to true to cause the menu popup to be displayed inline rather
         * 