MD Settings: Make Protected Content toggle change label text on toggle

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.
  */
 Polymer({
@@ skipping 155 matching lines @@
         loadTimeData.getString('contentSettings');
   },
 
 // <if expr="chromeos">
   /** @private */
   onAdobeFlashStorageClicked_: function() {
     window.open('https://www.macromedia.com/support/' +
         'documentation/en/flashplayer/help/settings_manager07.html');
   },
 // </if>
+
+  /**
+   * 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;
+  },
 });