Update settings.html and settings.js to Polymer 0.8

chrome/browser/resources/settings/settings.js

Index: chrome/browser/resources/settings/settings.js
diff --git a/chrome/browser/resources/settings/settings.js b/chrome/browser/resources/settings/settings.js
index e6a0fc9e201e789e49bdb55d2c3e43b4dd5e8c07..483ef9949ee93fb864991b28df05cdd90dcad2d7 100644
--- a/chrome/browser/resources/settings/settings.js
+++ b/chrome/browser/resources/settings/settings.js
@@ -13,4 +13,18 @@
  * @group Chrome Settings Elements
  * @element cr-settings
  */
-Polymer('cr-settings', {});
+Polymer({
+  is: 'cr-settings',
+
+  properties {
+    /**
+     * The CrSettingsPrefsElement used throughout the app.
+     * @private {!CrSettingsPrefsElement}
+     */
+    prefs_: {
+      type: Object,
+      value: function() { return this.$.prefs; },
+      notify: true,
+    }
+  },
+});