views: Move examples/ directory to ui/views/.

views/examples/widget_example.h

-// Copyright (c) 2011 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 VIEWS_EXAMPLES_WIDGET_EXAMPLE_H_
-#define VIEWS_EXAMPLES_WIDGET_EXAMPLE_H_
-#pragma once
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "views/controls/button/text_button.h"
-#include "views/examples/example_base.h"
-#include "views/widget/widget.h"
-
-namespace examples {
-
-// WidgetExample demonstrates how to create a popup widget.
-class WidgetExample : public ExampleBase, public views::ButtonListener {
- public:
-  explicit WidgetExample(ExamplesMain* main);
-  virtual ~WidgetExample();
-
-  // Overridden from ExampleBase:
-  virtual void CreateExampleView(views::View* container) OVERRIDE;
-
- private:
-  enum Command {
-    POPUP,
-    CHILD,
-    TRANSPARENT_POPUP,
-    TRANSPARENT_CHILD,
-    CLOSE_WIDGET,
-  };
-
-  void BuildButton(views::View* container, const std::string& label, int tag);
-
-  void InitWidget(views::Widget* widget, bool transparent);
-
-#if defined(OS_LINUX)
-  void CreateChild(views::View* parent, bool transparent);
-#endif
-
-  void CreatePopup(views::View* parent, bool transparent);
-
-  // Overridden from views::ButtonListener:
-  virtual void ButtonPressed(views::Button* sender,
-                             const views::Event& event) OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(WidgetExample);
-};
-
-}  // namespace examples
-
-#endif  // VIEWS_EXAMPLES_WIDGET_EXAMPLE_H_