Change the way the ToplevelEventHandler is hooked up. It is now both a pre- and post-target event h…

ui/base/events/event_functions.cc

+// Copyright (c) 2012 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/base/events/event_functions.h"
+
+#include "ui/base/events/event.h"
+#include "ui/base/events/event_constants.h"
+
+namespace ui {
+
+bool EventCanceledDefaultHandling(const ui::Event& event) {
+  return event.phase() == EP_POSTTARGET && event.result() != ER_UNHANDLED;
+}
+
+}  // namespace ui
+