his example, the user can tap a tab, and the URL
    will be automatically updated to match the active tab.
    -->
    <more-route-selector>
      <paper-tabs>
        <paper-tab route="/threads">Threads</paper-tab>
        <paper-tab route="/stats">Statistics</paper-tab>
        <paper-tab route="/">Stuff</paper-tab>
      </paper-tabs>
    </more-route-selector>
  </template>
</polymer-element>
