Move a bunch of random other files to src/ui/base...

app/active_window_watcher_x.h

-// Copyright (c) 2009 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 APP_ACTIVE_WINDOW_WATCHER_X_H_
-#define APP_ACTIVE_WINDOW_WATCHER_X_H_
-#pragma once
-
-#include <gdk/gdk.h>
-
-#include "base/basictypes.h"
-#include "base/observer_list.h"
-#include "base/singleton.h"
-
-// This is a helper class that is used to keep track of which window the X
-// window manager thinks is active. Add an Observer to listener for changes to
-// the active window.
-class ActiveWindowWatcherX {
- public:
-  class Observer {
-   public:
-    // |active_window| will be NULL if the active window isn't one of Chrome's.
-    virtual void ActiveWindowChanged(GdkWindow* active_window) = 0;
-
-   protected:
-    virtual ~Observer() {}
-  };
-
-  static ActiveWindowWatcherX* GetInstance();
-
-  static void AddObserver(Observer* observer);
-  static void RemoveObserver(Observer* observer);
-
- private:
-  friend struct DefaultSingletonTraits<ActiveWindowWatcherX>;
-
-  ActiveWindowWatcherX();
-  ~ActiveWindowWatcherX();
-
-  void Init();
-
-  // Sends a notification out through the NotificationService that the active
-  // window has changed.
-  void NotifyActiveWindowChanged();
-
-  // Callback for PropertyChange XEvents.
-  static GdkFilterReturn OnWindowXEvent(GdkXEvent* xevent,
-                                        GdkEvent* event,
-                                        gpointer window_watcher);
-
-  ObserverList<Observer> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(ActiveWindowWatcherX);
-};
-
-#endif  // APP_ACTIVE_WINDOW_WATCHER_X_H_