Settings Router Refactor: Replace route.subpage usage with route.path

chrome/test/data/webui/settings/settings_page_browsertest.js

 // Copyright 2015 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.
 
 /** @fileoverview Prototype for Settings page tests. */
 
 /** @const {string} Path to root from chrome/test/data/webui/settings/. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 74 matching lines @@
     if (!pages)
       return;
 
     var children = pages.getContentChildren();
     var stampedChildren = children.filter(function(element) {
       return element.tagName != 'TEMPLATE';
     });
 
     // The section's main child should be stamped and visible.
     var main = stampedChildren.filter(function(element) {
-      return element.id == 'main';
+      return element.getAttribute('route-path') == 'default';
     });
-    assertEquals(main.length, 1, '#main not found for section ' +
+    assertEquals(main.length, 1, 'default card not found for section ' +
         section.section);
     assertGT(main[0].offsetHeight, 0);
 
     // Any other stamped subpages should not be visible.
     var subpages = stampedChildren.filter(function(element) {
-      return element.id != 'main';
+      return element.getAttribute('route-path') != 'default';
     });
     for (var subpage of subpages) {
       assertEquals(subpage.offsetHeight, 0, 'Expected subpage #' + subpage.id +
           ' in ' + section.section + ' not to be visible.');
     }
   },
 };