Adding a dialog which explains that the multi user session has ended because a user policy has chan…

chrome/browser/chromeos/login/multi_profile_user_controller.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/multi_profile_user_controller.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_change_registrar.h"
@@ skipping 164 matching lines @@
   DictionaryPrefUpdate update(local_state_,
                               prefs::kCachedMultiProfileUserBehavior);
   update->SetStringWithoutPathExpansion(user_email,
                                         SanitizeBehaviorValue(behavior));
 }
 
 void MultiProfileUserController::CheckSessionUsers() {
   const UserList& users = UserManager::Get()->GetLoggedInUsers();
   for (UserList::const_iterator it = users.begin(); it != users.end(); ++it) {
     if (!IsUserAllowedInSession((*it)->email())) {
-      delegate_->OnUserNotAllowed();
+      delegate_->OnUserNotAllowed((*it)->email());
       return;
     }
   }
 }
 
 void MultiProfileUserController::OnUserPrefChanged(
     Profile* user_profile) {
   std::string user_email = user_profile->GetProfileName();
   CHECK(!user_email.empty());
   user_email = gaia::CanonicalizeEmail(user_email);
 
   PrefService* prefs = user_profile->GetPrefs();
   if (prefs->FindPreference(prefs::kMultiProfileUserBehavior)
           ->IsDefaultValue()) {
     // Migration code to clear cached default behavior.
     // TODO(xiyuan): Remove this after M35.
     DictionaryPrefUpdate update(local_state_,
                                 prefs::kCachedMultiProfileUserBehavior);
     update->RemoveWithoutPathExpansion(user_email, NULL);
   } else {
     const std::string behavior =
         prefs->GetString(prefs::kMultiProfileUserBehavior);
     SetCachedValue(user_email, behavior);
   }
 
   CheckSessionUsers();
 }
 
 }  // namespace chromeos