1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_OBSERVER_H_
6 #define UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_OBSERVER_H_
10 #include "ui/base/ui_export.h"
14 class UI_EXPORT ActiveWindowWatcherXObserver {
16 // |active_window| will be NULL if the active window isn't one of Chrome's.
17 virtual void ActiveWindowChanged(GdkWindow* active_window) = 0;
20 virtual ~ActiveWindowWatcherXObserver() {}
25 #endif // UI_BASE_X_ACTIVE_WINDOW_WATCHER_X_OBSERVER_H_