Reland Remove NativeTabbedPane[Win|Wrapper]; promote Views impl.

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/basictypes.h"
 #include "base/compiler_specific.h"
 #include "ui/views/controls/button/text_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/removing/selecting tabs.
+// A TabbedPane example tests adding and selecting tabs.
 class 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, remove or select tabs.
+  // Control buttons to add and select tabs.
   Button* add_;
   Button* add_at_;
-  Button* remove_at_;
   Button* select_at_;
 
   DISALLOW_COPY_AND_ASSIGN(TabbedPaneExample);
 };
 
 }  // namespace examples
 }  // namespace views
 
 #endif  // UI_VIEWS_EXAMPLES_TABBED_PANE_EXAMPLE_H_