Fixed suggesting adding more users into multi-profile session when we don't have more

chrome/browser/ui/ash/session_state_delegate_chromeos.cc

 // Copyright (c) 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/ui/ash/session_state_delegate_chromeos.h"
 
 #include "ash/multi_profile_uma.h"
 #include "ash/session/session_state_observer.h"
 #include "ash/system/chromeos/multi_user/user_switch_util.h"
 #include "base/bind.h"
@@ skipping 65 matching lines @@
   // actually added to a session.
   // TODO(nkostylev): Adjust this limitation based on device capabilites.
   // http://crbug.com/230865
   return 10;
 }
 
 int SessionStateDelegateChromeos::NumberOfLoggedInUsers() const {
   return user_manager::UserManager::Get()->GetLoggedInUsers().size();
 }
 
+bool SessionStateDelegateChromeos::CanAddUserToMultiProfile(
+    MultiProfileAddUserError* error) const {
+  if (user_manager::UserManager::Get()
+          ->GetUsersAdmittedForMultiProfile()

[James Cook, 2014/09/23 16:02:12]

I know this was not added in this CL, but the name is confusing and it needs to
be renamed. If you want to do it in another CL that's OK, but please include me
on the review.

[Roman Sorokin (ftl), 2014/09/24 08:30:47]

Ok, I'll do it in another CL.
On 2014/09/23 16:02:12, James Cook OOO until 9-29 wrote:

+          .size() == 0) {
+    if (error)
+      *error = MULTIPROFILE_ADD_USER_ERROR_OUT_OF_USERS;
+    return false;
+  }
+  return SessionStateDelegate::CanAddUserToMultiProfile(error);
+}
+
 bool SessionStateDelegateChromeos::IsActiveUserSessionStarted() const {
   return user_manager::UserManager::Get()->IsSessionStarted();
 }
 
 bool SessionStateDelegateChromeos::CanLockScreen() const {
   const user_manager::UserList unlock_users =
       user_manager::UserManager::Get()->GetUnlockUsers();
   return !unlock_users.empty();
 }
 
@@ skipping 176 matching lines @@
 }
 
 void DoSwitchUser(const std::string& user_id) {
   user_manager::UserManager::Get()->SwitchActiveUser(user_id);
 }
 
 void SessionStateDelegateChromeos::TryToSwitchUser(
     const std::string& user_id) {
   ash::TrySwitchingActiveUser(base::Bind(&DoSwitchUser, user_id));
 }