It is time.

ui/views/examples/single_split_view_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 UI_VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_
-#define UI_VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_
-
-#include "base/macros.h"
-#include "ui/views/controls/single_split_view_listener.h"
-#include "ui/views/examples/example_base.h"
-
-namespace views {
-namespace examples {
-
-class VIEWS_EXAMPLES_EXPORT SingleSplitViewExample
-    : public ExampleBase,
-      public SingleSplitViewListener {
- public:
-  SingleSplitViewExample();
-  virtual ~SingleSplitViewExample();
-
-  // ExampleBase:
-  virtual void CreateExampleView(View* container) override;
-
- private:
-  // SingleSplitViewListener:
-  virtual bool SplitHandleMoved(SingleSplitView* sender) override;
-
-  SingleSplitView* single_split_view_;
-
-  DISALLOW_COPY_AND_ASSIGN(SingleSplitViewExample);
-};
-
-}  // namespace examples
-}  // namespace views
-
-#endif  // UI_VIEWS_EXAMPLES_SINGLE_SPLIT_VIEW_EXAMPLE_H_