// 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. #include "ui/aura/window_observer.h" #include "base/check.h" namespace aura { WindowObserver::WindowObserver() = default; WindowObserver::~WindowObserver() { CHECK(!IsInObserverList()); } } // namespace aura