Remove the google drive option on the settings page for supervized user

ui/webui/resources/js/chromeos/ui_account_tweaks.js

 // Copyright (c) 2012 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 This file contains methods that allow to tweak
  * internal page UI based on the status of current user (owner/user/guest).
  * It is assumed that required data is passed via i18n strings
  * (using loadTimeData dictionary) that are filled with call to
  * AddAccountUITweaksLocalizedValues in ui_account_tweaks.cc.
@@ skipping 21 matching lines @@
   };
 
   /**
    * @return {boolean} Whether we're currently in guest mode.
    */
   UIAccountTweaks.loggedInAsGuest = function() {
     return loadTimeData.getBoolean('loggedInAsGuest');
   };
 
   /**
+   * @return {boolean} Whether we're currently in supervised user mode.
+   */
+  UIAccountTweaks.loggedInAsLocallyManagedUser = function() {
+    return loadTimeData.getBoolean('loggedInAsLocallyManagedUser');
+  };
+
+  /**
    * Disables or hides some elements in Guest mode in ChromeOS.
    * All elements within given document with guest-visibility
    * attribute are either hidden (for guest-visibility="hidden")
    * or disabled (for guest-visibility="disabled").
    *
    * @param {Document} document Document that should processed.
    */
   UIAccountTweaks.applyGuestModeVisibility = function(document) {
     if (!cr.isChromeOS || !UIAccountTweaks.loggedInAsGuest())
       return;
@@ skipping 54 matching lines @@
       };
     }
   };
 
   // Export
   return {
     UIAccountTweaks: UIAccountTweaks
   };
 
 });