virtual aura::Window* GetActiveWindow() OVERRIDE;
virtual aura::Window* GetActivatableWindow(aura::Window* window) OVERRIDE;
virtual aura::Window* GetToplevelWindow(aura::Window* window) OVERRIDE;
- virtual bool OnWillFocusWindow(aura::Window* window,
- const ui::Event* event) OVERRIDE;
virtual bool CanActivateWindow(aura::Window* window) const OVERRIDE;
// Overridden from WindowObserver: