It is time.

ui/views/examples/tabbed_pane_example.h

-// 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.
-
-#ifndef UI_VIEWS_EXAMPLES_TABBED_PANE_EXAMPLE_H_
-#define UI_VIEWS_EXAMPLES_TABBED_PANE_EXAMPLE_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "ui/views/controls/button/button.h"
-#include "ui/views/controls/tabbed_pane/tabbed_pane_listener.h"
-#include "ui/views/examples/example_base.h"
-
-namespace views {
-class TabbedPane;
-
-namespace examples {
-
-// A TabbedPane example tests adding and selecting tabs.
-class VIEWS_EXAMPLES_EXPORT TabbedPaneExample : public ExampleBase,
-                                                public ButtonListener,
-                                                public TabbedPaneListener {
- public:
-  TabbedPaneExample();
-  virtual ~TabbedPaneExample();
-
-  // ExampleBase:
-  virtual void CreateExampleView(View* container) override;
-
- private:
-  // ButtonListener:
-  virtual void ButtonPressed(Button* sender, const ui::Event& event) override;
-
-  // TabbedPaneListener:
-  virtual void TabSelectedAt(int index) override;
-
-  // Print the status of the tab in the status area.
-  void PrintStatus();
-
-  void AddButton(const std::string& label);
-
-  // The tabbed pane to be tested.
-  TabbedPane* tabbed_pane_;
-
-  // Control buttons to add and select tabs.
-  Button* add_;
-  Button* add_at_;
-  Button* select_at_;
-
-  DISALLOW_COPY_AND_ASSIGN(TabbedPaneExample);
-};
-
-}  // namespace examples
-}  // namespace views
-
-#endif  // UI_VIEWS_EXAMPLES_TABBED_PANE_EXAMPLE_H_