Convert a11y page to Polymer 0.8

chrome/browser/resources/settings/a11y_page/a11y_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-settings-a11y-page' is the settings page containing accessibility
  * settings.
  *
  * Example:
  *
- *    <core-animated-pages>
+ *    <iron-animated-pages>
  *      <cr-settings-a11y-page prefs="{{prefs}}"></cr-settings-a11y-page>
  *      ... other pages ...
- *    </core-animated-pages>
+ *    </iron-animated-pages>
  *
  * @group Chrome Settings Elements
  * @element cr-settings-a11y-page
  */
-Polymer('cr-settings-a11y-page', {
-  publish: {
+Polymer({
+  is: 'cr-settings-a11y-page',
+
+  properties: {
     /**
      * Preferences state.
      *
-     * @attribute prefs
-     * @type CrSettingsPrefsElement
+     * @type {?CrSettingsPrefsElement}
      * @default null
      */
-    prefs: null,
+    prefs: {
+      type: Object,
+      notify: true,
+    },
 
     /**
      * Route for the page.
-     *
-     * @attribute route
-     * @type string
-     * @default ''
      */
-    route: '',
+    route: String,
 
     /**
      * Whether the page is a subpage.
-     *
-     * @attribute subpage
-     * @type boolean
-     * @default false
      */
-    subpage: false,
+    subpage: {
+      type: Boolean,
+      value: false,
+    },
 
     /**
      * ID of the page.
-     *
-     * @attribute PAGE_ID
-     * @const string
-     * @default 'a11y'
      */
-    PAGE_ID: 'a11y',
+    PAGE_ID: {
+      type: String,

[michaelpg, 2015/05/12 08:03:42]

for "constant" properties, set readonly: true (presumably this helps perf by
disabling unnecessary bindings)

[Jeremy Klein, 2015/05/12 17:28:56]

Great point. I'll add that in all my CLs where appropriate.

+      value: 'a11y',
+    },
 
     /**
      * Title for the page header and navigation menu.
-     *
-     * @attribute pageTitle
-     * @type string
      */
-    pageTitle: loadTimeData.getString('a11yPageTitle'),
+    pageTitle: {
+      type: String,
+      value: function() { return loadTimeData.getString('a11yPageTitle'); },
+    },
 
     /**
-     * Name of the 'core-icon' to show.
-     *
-     * @attribute icon
-     * @type string
-     * @default 'accessibility'
+     * Name of the 'iron-icon' to show.
      */
-    icon: 'accessibility',
+    icon: {
+      type: String,
+      value: 'accessibility',
+    },
+  },
+
+  /**
+   * Called when the selected value of the autoclick dropdown changes.
+   * TODO(jlklein): Replace with binding when paper-dropdown lands.
+   * @private
+   */
+  autoclickSelectChanged_: function() {
+    this.prefs.settings.settings.a11y.autoclick_delay_ms =
+        this.$.autoclickDropdown.value;
   },
 });