Delete athena/

athena/wm/public/window_list_provider.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_WM_PUBLIC_WINDOW_LIST_PROVIDER_H_
-#define ATHENA_WM_PUBLIC_WINDOW_LIST_PROVIDER_H_
-
-#include "athena/athena_export.h"
-#include "ui/aura/window.h"
-
-namespace athena {
-
-class WindowListProviderObserver;
-
-// Interface for an ordered list of aura::Window objects.
-// Note that lists returned by GetCurrentWindowList() will not change if any of
-// the other member functions will be called later.
-class ATHENA_EXPORT WindowListProvider {
- public:
-  virtual ~WindowListProvider() {}
-
-  // Adding/removing an observer to status changes.
-  virtual void AddObserver(WindowListProviderObserver* observer) = 0;
-  virtual void RemoveObserver(WindowListProviderObserver* observer) = 0;
-
-  // Returns an ordered list of the current window configuration.
-  virtual const aura::Window::Windows& GetWindowList() const = 0;
-
-  // Returns true if the |window| is part of the list.
-  virtual bool IsWindowInList(aura::Window* window) const = 0;
-
-  // Stacks a given |window| in direct front of a |reference_window|.
-  // Note: The |window| and |reference_window| has to be in the list already.
-  virtual void StackWindowFrontOf(aura::Window* window,
-                                  aura::Window* reference_window) = 0;
-
-  // Stacks a given |window| directly behind a |reference_window|.
-  // Note: The |window| and |reference_window| has to be in the list already.
-  virtual void StackWindowBehindTo(aura::Window* window,
-                                   aura::Window* reference_window) = 0;
-};
-
-}  // namespace athena
-
-#endif  // ATHENA_WM_PUBLIC_WINDOW_LIST_PROVIDER_H_