It is time.

ui/views/test/test_views_delegate_mac.mm

-// 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/views/test/test_views_delegate.h"
-
-#include "ui/views/widget/native_widget_mac.h"
-
-namespace views {
-
-TestViewsDelegate::TestViewsDelegate()
-    : use_desktop_native_widgets_(false),
-      use_transparent_windows_(false) {
-  DCHECK(!ViewsDelegate::views_delegate);
-  ViewsDelegate::views_delegate = this;
-}
-
-TestViewsDelegate::~TestViewsDelegate() {
-  if (ViewsDelegate::views_delegate == this)
-    ViewsDelegate::views_delegate = NULL;
-}
-
-void TestViewsDelegate::OnBeforeWidgetInit(
-    Widget::InitParams* params,
-    internal::NativeWidgetDelegate* delegate) {
-  if (params->opacity == Widget::InitParams::INFER_OPACITY) {
-    params->opacity = use_transparent_windows_ ?
-        Widget::InitParams::TRANSLUCENT_WINDOW :
-        Widget::InitParams::OPAQUE_WINDOW;
-  }
-  // TODO(tapted): This should return a *Desktop*NativeWidgetMac.
-  if (!params->native_widget && use_desktop_native_widgets_)
-    params->native_widget = new NativeWidgetMac(delegate);
-}
-
-}  // namespace views