Scaffold for MD-Settings, inside chrome://md-settings.

chrome/browser/resources/settings/dummy_page/dummy_page.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
+ * 'cr-dummy-page' is a placeholder page for testing settings UI.
+ */
+Polymer('cr-settings-dummy-page', {
+  /** @override */
+  pageTitle: 'Dummy page',
+
+  /** @override */
+  navTitle: 'Dummy page',
+
+  /** @override */
+  icon: 'add-circle',
+
+  /**
+   * Event handler for the toggle button for the 'cr-collapse'.
+   */
+  toggleCollapse: function() {
+    this.$.collapse.toggle();
+  },
+});