Show warning message when trying to create SU with existing name

chrome/browser/ui/webui/options/manage_profile_browsertest.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.
 
 // None of these tests is relevant for Chrome OS.
 GEN('#if !defined(OS_CHROMEOS)');
 
 /**
  * TestFixture for ManageProfileOverlay and CreateProfileOverlay WebUI testing.
  * @extends {testing.Test}
@@ skipping 184 matching lines @@
     },
     {
       id: 'supervisedUser3',
       name: 'Test',
       iconURL: 'chrome://path/to/icon/image',
       onCurrentDevice: true,
       needAvatar: false
     },
     {
       id: 'supervisedUser4',
-      name: 'SameName',
+      name: 'RepeatingName',
+      iconURL: 'chrome://path/to/icon/image',
+      onCurrentDevice: true,
+      needAvatar: false
+    },
+    {
+      id: 'supervisedUser5',
+      name: 'RepeatingName',
       iconURL: 'chrome://path/to/icon/image',
       onCurrentDevice: false,
       needAvatar: false
     }];
   var promise = Promise.resolve(supervisedUsers);
   options.SupervisedUserListData.getInstance().promise_ = promise;
 
   // Initialize the ManageProfileOverlay.
   ManageProfileOverlay.getInstance().initializePage();
   var custodianEmail = 'chrome.playpen.test@gmail.com';
   CreateProfileOverlay.updateSignedInStatus(custodianEmail);
   assertEquals(custodianEmail,
                CreateProfileOverlay.getInstance().signedInEmail_);
   this.setProfileSupervised_(false, 'create');
 
-  // Also add the names 'Test' and 'SameName' to |existingProfileNames_| to
+  // Also add the names 'Test' and 'RepeatingName' to |existingProfileNames_| to
   // simulate that profiles with those names exist on the device.
   ManageProfileOverlay.getInstance().existingProfileNames_.Test = true;
-  ManageProfileOverlay.getInstance().existingProfileNames_.SameName = true;
+  ManageProfileOverlay.getInstance().existingProfileNames_.RepeatingName = true;
 
   // Initially, the ok button should be enabled and the import link should not
   // exist.
   assertFalse($('create-profile-ok').disabled);
   assertTrue($('supervised-user-import-existing') == null);
 
   // Now try to create profiles with the names of existing supervised users.
   $('create-profile-supervised').checked = true;
   var nameField = $('create-profile-name');
   // A profile which already has an avatar.
@@ skipping 10 matching lines @@
     return options.SupervisedUserListData.getInstance().promise_;
   }).then(function() {
     assertTrue($('create-profile-ok').disabled);
     assertFalse($('supervised-user-import-existing') == null);
 
     // A profile which already exists on the device.
     nameField.value = 'Test';
     ManageProfileOverlay.getInstance().onNameChanged_('create');
     return options.SupervisedUserListData.getInstance().promise_;
   }).then(function() {
-    assertFalse($('create-profile-ok').disabled);
+    assertTrue($('create-profile-ok').disabled);
     assertTrue($('supervised-user-import-existing') == null);
 
-    // A profile which does not exist on the device, but there is a profile with
-    // the same name already on the device.
-    nameField.value = 'SameName';
+    // A supervised user profile that is on the device, but has the same name
+    // as a supervised user profile that is not imported.
+    // This can happen due to a bug (https://crbug.com/557445)
+    nameField.value = 'RepeatingName';
     ManageProfileOverlay.getInstance().onNameChanged_('create');
     return options.SupervisedUserListData.getInstance().promise_;
   }).then(function() {
     assertTrue($('create-profile-ok').disabled);
     assertFalse($('supervised-user-import-existing') == null);
 
     // A profile which does not exist yet.
     nameField.value = 'NewProfileName';
     ManageProfileOverlay.getInstance().onNameChanged_('create');
     return options.SupervisedUserListData.getInstance().promise_;
@@ skipping 384 matching lines @@
 
   // Select another icon and check if the profile name was updated.
   var oldName = nameEl.value;
   gridEl.selectedItem = iconURLs[1];
   expectEquals(oldName, nameEl.value);
 
   PageManager.closeOverlay();
 });
 
 GEN('#endif  // OS_CHROMEOS');