Do not show irrelevant registration promos to supervised and guest users

chrome/browser/resources/local_discovery/local_discovery.js

 // Copyright 2013 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.
 
 /**
  * Javascript for local_discovery.html, served from chrome://devices/
  * This is used to show discoverable devices near the user as well as
  * cloud devices registered to them.
  *
  * The object defined in this javascript file listens for callbacks from the
@@ skipping 28 matching lines @@
    */
   var devices = {};
 
   /**
    * Whether or not the user is currently logged in.
    * @type bool
    */
   var isUserLoggedIn = true;
 
   /**
+   * Whether or not the user is supervised or off the record.
+   * @type bool
+   */
+  var isUserSupervisedOrOffTheRecord = false;
+
+  /**
    * Whether or not the path-based dialog has been shown.
    * @type bool
    */
   var dialogFromPathHasBeenShown = false;
 
   /**
    * Focus manager for page.
    */
   var focusManager = null;
 
@@ skipping 341 matching lines @@
    * Update UI strings to reflect the number of local devices.
    */
   function updateUIToReflectState() {
     var numberPrinters = $('register-device-list').children.length;
     if (numberPrinters == 0) {
       $('no-printers-message').hidden = false;
 
       $('register-login-promo').hidden = true;
     } else {
       $('no-printers-message').hidden = true;
-      $('register-login-promo').hidden = isUserLoggedIn;
+      $('register-login-promo').hidden = isUserLoggedIn ||
+        isUserSupervisedOrOffTheRecord;
     }
   }
 
   /**
    * Announce that a registration succeeeded.
    */
   function onRegistrationSuccess(device_data) {
     hideRegisterOverlay();
 
     if (device_data.service_name == getOverlayIDFromPath()) {
@@ skipping 78 matching lines @@
   /**
    * Retry loading the devices from Google Cloud Print.
    */
   function retryLoadCloudDevices() {
     requestDeviceList();
   }
 
   /**
    * User is not logged in.
    */
-  function setUserLoggedIn(userLoggedIn) {
+  function setUserLoggedIn(userLoggedIn, userSupervisedOrOffTheRecord) {
     isUserLoggedIn = userLoggedIn;
+    isUserSupervisedOrOffTheRecord = userSupervisedOrOffTheRecord;
 
-    $('cloud-devices-login-promo').hidden = isUserLoggedIn;
-    $('register-overlay-login-promo').hidden = isUserLoggedIn;
-    $('register-continue-button').disabled = !isUserLoggedIn;
+    $('cloud-devices-login-promo').hidden = isUserLoggedIn ||
+      isUserSupervisedOrOffTheRecord;
+    $('register-overlay-login-promo').hidden = isUserLoggedIn ||
+      isUserSupervisedOrOffTheRecord;
+    $('register-continue-button').disabled = !isUserLoggedIn ||
+      isUserSupervisedOrOffTheRecord;
 
-    if (isUserLoggedIn) {
+    $('my-devices-container').hidden = userSupervisedOrOffTheRecord;
+
+    if (isUserSupervisedOrOffTheRecord) {
+      $('cloud-print-connector-section').hidden = true;
+    }
+
+    if (isUserLoggedIn && !isUserSupervisedOrOffTheRecord) {
       requestDeviceList();
       $('register-login-promo').hidden = true;
     } else {
       $('cloud-devices-loading').hidden = true;
       $('cloud-devices-unavailable').hidden = true;
       clearElement($('cloud-devices'));
       hideRegisterOverlay();
     }
 
     updateUIToReflectState();
@@ skipping 138 matching lines @@
     onCloudDeviceListAvailable: onCloudDeviceListAvailable,
     onCloudDeviceListUnavailable: onCloudDeviceListUnavailable,
     onDeviceCacheFlushed: onDeviceCacheFlushed,
     onRegistrationCanceledPrinter: onRegistrationCanceledPrinter,
     onRegistrationTimeout: onRegistrationTimeout,
     setUserLoggedIn: setUserLoggedIn,
     setupCloudPrintConnectorSection: setupCloudPrintConnectorSection,
     removeCloudPrintConnectorSection: removeCloudPrintConnectorSection
   };
 });