[WIP] ash/extensions: Add experimental extension support for window-management in ash.

ash/test/test_shell_delegate.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 ASH_TEST_TEST_SHELL_DELEGATE_H_
 #define ASH_TEST_TEST_SHELL_DELEGATE_H_
 
 #include "ash/shell_delegate.h"
 #include "base/compiler_specific.h"
 
@@ skipping 24 matching lines @@
   virtual void ShowTaskManager() OVERRIDE;
   virtual content::BrowserContext* GetCurrentBrowserContext() OVERRIDE;
   virtual void ToggleSpokenFeedback() OVERRIDE;
   virtual bool IsSpokenFeedbackEnabled() const OVERRIDE;
   virtual app_list::AppListViewDelegate* CreateAppListViewDelegate() OVERRIDE;
   virtual LauncherDelegate* CreateLauncherDelegate(
       ash::LauncherModel* model) OVERRIDE;
   virtual SystemTrayDelegate* CreateSystemTrayDelegate(SystemTray* t) OVERRIDE;
   virtual UserWallpaperDelegate* CreateUserWallpaperDelegate() OVERRIDE;
   virtual aura::client::UserActionClient* CreateUserActionClient() OVERRIDE;
+  virtual ash::WindowManagerExtensionDelegate*
+      CreateWindowManagerDelegate() OVERRIDE { return NULL; }
   virtual void OpenFeedbackPage() OVERRIDE;
   virtual void RecordUserMetricsAction(UserMetricsAction action) OVERRIDE;
 
  private:
   bool locked_;
   bool spoken_feedback_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(TestShellDelegate);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_TEST_SHELL_DELEGATE_H_