It is time.

ui/views/examples/checkbox_example.cc

Index: ui/views/examples/checkbox_example.cc
diff --git a/ui/views/examples/checkbox_example.cc b/ui/views/examples/checkbox_example.cc
deleted file mode 100644
index b25dd8e8d86bc4b66386bd9302cdcb11d9f65abc..0000000000000000000000000000000000000000
--- a/ui/views/examples/checkbox_example.cc
+++ /dev/null
@@ -1,34 +0,0 @@
-// 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.
-
-#include "ui/views/examples/checkbox_example.h"
-
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "ui/views/controls/button/checkbox.h"
-#include "ui/views/controls/button/radio_button.h"
-#include "ui/views/layout/fill_layout.h"
-
-namespace views {
-namespace examples {
-
-CheckboxExample::CheckboxExample() : ExampleBase("Checkbox"), count_(0) {
-}
-
-CheckboxExample::~CheckboxExample() {
-}
-
-void CheckboxExample::CreateExampleView(View* container) {
-  button_ = new Checkbox(base::ASCIIToUTF16("Checkbox"));
-  button_->set_listener(this);
-  container->SetLayoutManager(new FillLayout);
-  container->AddChildView(button_);
-}
-
-void CheckboxExample::ButtonPressed(Button* sender, const ui::Event& event) {
-  PrintStatus("Pressed! count: %d", ++count_);
-}
-
-}  // namespace examples
-}  // namespace views