MD Settings: add a <controlled-radio-button>

chrome/browser/resources/settings/controls/settings_radio_group.js

Index: chrome/browser/resources/settings/controls/settings_radio_group.js
diff --git a/chrome/browser/resources/settings/controls/settings_radio_group.js b/chrome/browser/resources/settings/controls/settings_radio_group.js
index 389ebcd4fa1776ceaab9946dfeeb9e961918ff14..f0bedec092bfa7c54fb40091c3a26c664cba75d6 100644
--- a/chrome/browser/resources/settings/controls/settings_radio_group.js
+++ b/chrome/browser/resources/settings/controls/settings_radio_group.js
@@ -15,15 +15,9 @@
 Polymer({
   is: 'settings-radio-group',
 
-  behaviors: [CrPolicyPrefBehavior, PrefControlBehavior],
+  behaviors: [PrefControlBehavior],
 
   properties: {
-    disabled_: {
-      observer: 'disabledChanged_',
-      type: Boolean,
-      value: false,
-    },
-
     /**
      * IronSelectableBehavior selected attribute.
      */
@@ -41,19 +35,10 @@ Polymer({
   /** @private */
   prefChanged_: function() {
     var pref = /** @type {!chrome.settingsPrivate.PrefObject} */(this.pref);
-    this.disabled_ = this.isPrefPolicyControlled(pref);
     this.selected = Settings.PrefUtil.prefToString(pref);
   },
 
   /** @private */
-  disabledChanged_: function() {
-    var radioButtons = this.queryAllEffectiveChildren('paper-radio-button');
-    for (var i = 0; i < radioButtons.length; ++i) {
-      radioButtons[i].disabled = this.disabled_;
-    }
-  },
-
-  /** @private */
   selectedChanged_: function(selected) {
     if (!this.pref)
       return;