V2 app support step2 : Use NativeAppWindow for Activity's window.

athena/activity/public/activity_factory.h

 // Copyright 2014 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 ATHENA_ACTIVITY_PUBLIC_ACTIVITY_FACTORY_H_
 #define ATHENA_ACTIVITY_PUBLIC_ACTIVITY_FACTORY_H_
 
 #include "athena/athena_export.h"
 #include "url/gurl.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 class AppWindow;
 class ShellAppWindow;
 }
 
+namespace views {
+class WebView;
+}
+
 namespace athena {
 class Activity;
 
 class ATHENA_EXPORT ActivityFactory {
  public:
   // Registers the singleton factory.
   static void RegisterActivityFactory(ActivityFactory* factory);
 
   // Gets the registered singleton factory.
   static ActivityFactory* Get();
 
   // Shutdowns the factory.
   static void Shutdown();
 
   virtual ~ActivityFactory() {}
 
   // Create an activity of a web page. If |title| is empty, the title will be
   // obtained from the web contents.
   virtual Activity* CreateWebActivity(content::BrowserContext* browser_context,
                                       const base::string16& title,
                                       const GURL& url) = 0;
 
   // Create an activity of an app with |app_window| for app shell environemnt.
   // The returned activity should own |app_window|.
   // TODO(oshima): Consolidate these two methods to create AppActivity
   // once crbug.com/403726 is finished.
   virtual Activity* CreateAppActivity(extensions::ShellAppWindow* app_window,
                                       const std::string& id) = 0;
 
-  // Create an activity of an app with |app_window| for chrome environment.
-  virtual Activity* CreateAppActivity(extensions::AppWindow* app_window) = 0;
+  // Create an activity of an app with |app_window| for chrome environment and
+  // |web_view| that will host the content.
+  virtual Activity* CreateAppActivity(extensions::AppWindow* app_window,
+                                      views::WebView* web_view) = 0;
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_ACTIVITY_PUBLIC_ACTIVITY_FACTORY_H_