Fleshes out WidgetGTK and WindowGTK a bit more. This is still vary...

chrome/views/controls/button/native_button_wrapper.h

 // Copyright (c) 2009 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 CHROME_VIEWS_CONTROLS_BUTTON_NATIVE_BUTTON_WRAPPER_H_
 #define CHROME_VIEWS_CONTROLS_BUTTON_NATIVE_BUTTON_WRAPPER_H_
 
 class ChromeFont;
 
 namespace views {
 
 class Checkbox;
 class NativeButton;
 class RadioButton;
+class View;
 
 // A specialization of NativeControlWrapper that hosts a platform-native button.
 class NativeButtonWrapper {
  public:
   // Updates the native button's label from the state stored in its associated
   // NativeButton.
   virtual void UpdateLabel() = 0;
 
   // Updates the native button's label font from the state stored in its
   // associated NativeButton.
@@ skipping 28 matching lines @@
   static NativeButtonWrapper* CreateNativeButtonWrapper(NativeButton* button);
   static NativeButtonWrapper* CreateCheckboxWrapper(Checkbox* checkbox);
   static NativeButtonWrapper* CreateRadioButtonWrapper(
       RadioButton* radio_button);
 
 };
 
 }  // namespace views
 
 #endif  // #ifndef CHROME_VIEWS_CONTROLS_BUTTON_NATIVE_BUTTON_WRAPPER_H_