Add <a is="action-link">, a web component extension of <a> for in-page actions.

chrome/browser/resources/print_preview/search/destination_search.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * Component used for searching for a print destination.
    * This is a modal dialog that allows the user to search and select a
@@ skipping 262 matching lines @@
     },
 
     /** @override */
     decorateInternal: function() {
       this.searchBox_.render(this.getChildElement('.search-box-container'));
       this.recentList_.render(this.getChildElement('.recent-list'));
       this.localList_.render(this.getChildElement('.local-list'));
       this.cloudList_.render(this.getChildElement('.cloud-list'));
       this.getChildElement('.promo-text').innerHTML = loadTimeData.getStringF(
           'cloudPrintPromotion',
-          '<span class="sign-in link-button">',
-          '</span>');
+          '<a is="action-link" class="sign-in">',
+          '</a>');
       this.getChildElement('.account-select-label').textContent =
           loadTimeData.getString('accountSelectTitle');
     },
 
     /**
      * @return {number} Height available for destination lists, in pixels.
      * @private
      */
     getAvailableListsHeight_: function() {
       var elStyle = window.getComputedStyle(this.getElement());
@@ skipping 392 matching lines @@
     onWindowResize_: function() {
       this.reflowLists_();
     }
   };
 
   // Export
   return {
     DestinationSearch: DestinationSearch
   };
 });