MD Settings: Fix styles in several places.

chrome/test/data/webui/settings/settings_passwords_section_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 Runs the Polymer Password Settings tests. */
 
 /** @const {string} Path to root from chrome/test/data/webui/settings/. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
@@ skipping 74 matching lines @@
     }
   },
 
   /**
    * Returns all children of an element that has children added by a dom-repeat.
    * @param {!Element} element
    * @return {!Array<!Element>}
    * @private
    */
   getDomRepeatChildren_: function(element) {
-    var template = element.children[element.children.length - 1];
-    assertEquals('TEMPLATE', template.tagName);
-    // The template is at the end of the list of children and should be skipped.
-    return Array.prototype.slice.call(element.children, 0, -1);
+    var nodes = element.querySelectorAll('.list-item:not([id])');
+    return nodes;
   },
 
   /**
    * Helper method used to create a password section for the given lists.
    * @param {!Array<!chrome.passwordsPrivate.PasswordUiEntry>} passwordList
    * @param {!Array<!chrome.passwordsPrivate.ExceptionPair>} exceptionList
    * @return {!Object}
    * @private
    */
   createPasswordsSection_: function(passwordList, exceptionList) {
@@ skipping 333 matching lines @@
         assertEquals(item.loginPair.username, event.detail.username);
         done();
       });
 
       MockInteractions.tap(passwordDialog.$.showPasswordButton);
     });
   });
 
   mocha.run();
 });