Implement active window list for platform apps

chrome/browser/ui/views/ash/launcher/chrome_launcher_controller.h

 // Copyright (c) 2012 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_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #pragma once
 
+#include <list>
 #include <map>
 #include <string>
 
 #include "ash/launcher/launcher_delegate.h"
 #include "ash/launcher/launcher_model_observer.h"
 #include "ash/launcher/launcher_types.h"
 #include "ash/wm/shelf_auto_hide_behavior.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 209 matching lines @@
     // ID of the app.
     std::string app_id;
 
     // The BrowserLauncherItemController this item came from. NULL if a
     // shortcut.
     BrowserLauncherItemController* controller;
   };
 
   typedef std::map<ash::LauncherID, Item> IDToItemMap;
   typedef std::map<aura::Window*, ash::LauncherID> WindowToIDMap;
+  typedef std::list<aura::Window*> WindowList;
 
   // Updates the pinned pref state. The pinned state consists of a list pref.
   // Each item of the list is a dictionary. The key |kAppIDPath| gives the
   // id of the app.
   void PersistPinnedState();
 
   // Sets the AppIconLoader, taking ownership of |loader|. This is intended for
   // testing.
   void SetAppIconLoaderForTest(AppIconLoader* loader);
 
@@ skipping 29 matching lines @@
 
   // Profile used for prefs and loading extensions. This is NOT necessarily the
   // profile new windows are created with.
   Profile* profile_;
 
   IDToItemMap id_to_item_map_;
 
   // Allows us to get from an aura::Window to the id of a launcher item.
   // Currently only used for platform app windows.
   WindowToIDMap window_to_id_map_;
+  // Maintains the activation order. The first element is most recent.
+  // Currently only used for platform app windows.
+  WindowList activation_order_;
 
   // Used to load the image for an app tab.
   scoped_ptr<AppIconLoader> app_icon_loader_;
 
   content::NotificationRegistrar notification_registrar_;
 
   PrefChangeRegistrar pref_change_registrar_;
   aura::client::ActivationClient* activation_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherController);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_