Switching to the correct desktop when a system modal dialog gets shown

chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_ASH_MULTI_USER_MULTI_USER_WINDOW_MANAGER_CHROMEOS_H_
 #define CHROME_BROWSER_UI_ASH_MULTI_USER_MULTI_USER_WINDOW_MANAGER_CHROMEOS_H_
 
 #include <map>
 #include <string>
 
@@ skipping 120 matching lines @@
   typedef std::map<aura::Window*, WindowEntry*> WindowToEntryMap;
   typedef std::map<std::string, AppObserver*> UserIDToShellWindowObserver;
   typedef std::map<aura::Window*, bool> TransientWindowToVisibility;
 
   // Add a browser window to the system so that the owner can be remembered.
   void AddBrowserWindow(Browser* browser);
 
   // Show / hide the given window. Note: By not doing this within the functions,
   // this allows to either switching to different ways to show/hide and / or to
   // distinguish state changes performed by this class vs. state changes
-  // performed by the others.
+  // performed by the others. Note furthermore that system modal dialogs will
+  // not get hidden. We will switch instead to the owners desktop.
   void SetWindowVisibility(aura::Window* window, bool visible);
 
   // Show the window and its transient children. However - if a transient child
   // was turned invisible by some other operation, it will stay invisible.
   void ShowWithTransientChildrenRecursive(aura::Window* window);
 
   // Find the first owned window in the chain.
   // Returns NULL when the window itself is owned.
   aura::Window* GetOwningWindowInTransientChain(aura::Window* window);
 
@@ skipping 31 matching lines @@
   // Caching the current multi profile mode since the detection which mode is
   // used is quite expensive.
   static MultiProfileMode multi_user_mode_;
 
   DISALLOW_COPY_AND_ASSIGN(MultiUserWindowManagerChromeOS);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_ASH_MULTI_USER_MULTI_USER_WINDOW_MANAGER_CHROMEOS_H_