MD Settings: Fix the Network Prediction toggle box.

chrome/browser/resources/settings/privacy_page/privacy_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
  * 'settings-privacy-page' is the settings page containing privacy and
  * security settings.
  */
+(function() {
+
+/**
+ * Must be kept in sync with the C++ enum of the same name.
+ * @enum {number}
+ */
+var NetworkPredictionOptions = {
+  ALWAYS: 0,
+  WIFI_ONLY: 1,
+  NEVER: 2,
+  DEFAULT: 1
+};
+
 Polymer({
   is: 'settings-privacy-page',
 
   behaviors: [
     settings.RouteObserverBehavior,
     WebUIListenerBehavior,
   ],
 
   properties: {
     /**
@@ skipping 15 matching lines @@
     metricsReporting_: Object,
 
     showRestart_: Boolean,
 // </if>
 
     /** @private */
     safeBrowsingExtendedReportingEnabled_: Boolean,
 
     /** @private */
     showClearBrowsingDataDialog_: Boolean,
+
+    /**
+     * Used for HTML bindings. This is defined as a property rather than within
+     * the ready callback, because the value needs to be available before
+     * local DOM initialization - otherwise, the toggle has unexpected behavior.
+     * @private
+     */
+    networkPredictionEnum_: {
+      type: Object,
+      value: NetworkPredictionOptions,
+    },
   },
 
   ready: function() {
     this.ContentSettingsTypes = settings.ContentSettingsTypes;
 
 // <if expr="_google_chrome and not chromeos">
     var boundSetMetricsReporting = this.setMetricsReporting_.bind(this);
     this.addWebUIListener('metrics-reporting-change', boundSetMetricsReporting);
 
     var browserProxy = settings.PrivacyPageBrowserProxyImpl.getInstance();
@@ skipping 123 matching lines @@
    * Works like a ternary operator. E.g. (value ? trueLabel: falseLabel).
    * @param {boolean} value
    * @param {string} trueLabel True label (for example, 'Allow DRM').
    * @param {string} falseLabel False label (for example, 'Blocked').
    * @private
    */
   getStringTernary_: function(value, trueLabel, falseLabel) {
     return value ? trueLabel : falseLabel;
   },
 });
+})();