Makes the maximize/restore button handling

ui/views/controls/button/image_button.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_CONTROLS_BUTTON_IMAGE_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_IMAGE_BUTTON_H_
 #pragma once
 
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/views/controls/button/custom_button.h"
 
 namespace views {
 
 // An image button.
 
 // Note that this type of button is not focusable by default and will not be
 // part of the focus chain.  Call set_focusable(true) to make it part of the
 // focus chain.
 
 class VIEWS_EXPORT ImageButton : public CustomButton {
  public:
   explicit ImageButton(ButtonListener* listener);
   virtual ~ImageButton();
 
   // Set the image the button should use for the provided state.
-  virtual void SetImage(ButtonState aState, const SkBitmap* anImage);

[tfarina, 2012/03/14 16:36:03]

nit: anImage -> bitmap or image?

+  virtual void SetImage(ButtonState state, const SkBitmap* anImage);
 
   // Set the background details.
   void SetBackground(SkColor color,
                      const SkBitmap* image,
                      const SkBitmap* mask);
 
   enum HorizontalAlignment { ALIGN_LEFT = 0,
                              ALIGN_CENTER,
                              ALIGN_RIGHT, };
 
@@ skipping 77 matching lines @@
   // The parent class's tooltip_text_ is displayed when not toggled, and
   // this one is shown when toggled.
   string16 toggled_tooltip_text_;
 
   DISALLOW_COPY_AND_ASSIGN(ToggleImageButton);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_IMAGE_BUTTON_H_