Make "Join other network dialog" and "Join mobile network dialog" opens properly on multiple signin…

chrome/browser/ui/ash/system_tray_delegate_chromeos.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/ui/ash/system_tray_delegate_chromeos.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 119 matching lines @@
                     ash::IMEInfo* info) {
   info->id = ime.id();
   info->name = util.GetInputMethodLongName(ime);
   info->medium_name = util.GetInputMethodMediumName(ime);
   info->short_name = util.GetInputMethodShortName(ime);
   info->third_party = extension_ime_util::IsExtensionIME(ime.id());
 }
 
 gfx::NativeWindow GetNativeWindowByStatus(ash::user::LoginStatus login_status,
                                           bool session_started) {
+  bool isUserAddingRunning = ash::Shell::GetInstance()
+                                 ->session_state_delegate()
+                                 ->IsInSecondaryLoginScreen();
+
   int container_id =
       (!session_started || login_status == ash::user::LOGGED_IN_NONE ||
-       login_status == ash::user::LOGGED_IN_LOCKED)
+       login_status == ash::user::LOGGED_IN_LOCKED || isUserAddingRunning)
           ? ash::kShellWindowId_LockSystemModalContainer
           : ash::kShellWindowId_SystemModalContainer;
   return ash::Shell::GetContainer(ash::Shell::GetPrimaryRootWindow(),
                                   container_id);
 }
 
 void BluetoothPowerFailure() {
   // TODO(sad): Show an error bubble?
 }
 
@@ skipping 1121 matching lines @@
     accessibility_subscription_.reset();
   else
     OnAccessibilityModeChanged(details.notify);
 }
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new SystemTrayDelegateChromeOS();
 }
 
 }  // namespace chromeos