Enable proper zooming of checkbox and radio button on Win and Mac.

Source/core/rendering/RenderTheme.h

 /*
  * This file is part of the theme implementation for form controls in WebCore.
  *
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 44 matching lines @@
     // appropriate platform theme. When the theme is needed in non-page dependent code, a default theme is
     // used as fallback, which is returned for a nulled page, so the platform code needs to account for this.
     static PassRefPtr<RenderTheme> themeForPage(Page* page);
 
     // When the theme is needed in non-page dependent code, the defaultTheme() is used as fallback.
     static inline PassRefPtr<RenderTheme> defaultTheme()
     {
         return themeForPage(0);
     };
 
+    static void setSizeIfAuto(RenderStyle*, const IntSize&);
+
     // This method is called whenever style has been computed for an element and the appearance
     // property has been set to a value other than "none".  The theme should map in all of the appropriate
     // metrics and defaults given the contents of the style.  This includes sophisticated operations like
     // selection of control size based off the font, the disabling of appearance when certain other properties like
     // "border" are set, or if the appearance is not supported by the theme.
     void adjustStyle(StyleResolver*, RenderStyle*, Element*,  bool UAHasAppearance,
                      const BorderData&, const FillLayer&, const Color& backgroundColor);
 
     // This method is called to paint the widget as a background of the RenderObject.  A widget's foreground, e.g., the
     // text of a button, is always rendered by the engine itself.  The boolean return value indicates
@@ skipping 231 matching lines @@
     virtual bool paintMediaVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaRewindButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaReturnToRealtimeButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaControlsBackground(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaCurrentTime(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaTimeRemaining(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaFullScreenVolumeSliderTrack(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaFullScreenVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
+    virtual bool shouldUseFallbackTheme(RenderStyle*) const;
+    void adjustStyleUsingFallbackTheme(StyleResolver*, RenderStyle*, Element*);
+    bool paintUsingFallbackTheme(RenderObject*, const PaintInfo&, const IntRect&);
+    void adjustCheckboxStyleUsingFallbackTheme(StyleResolver*, RenderStyle*, Element*) const;
+    bool paintCheckboxUsingFallbackTheme(RenderObject*, const PaintInfo&, const IntRect&);
+    void adjustRadioStyleUsingFallbackTheme(StyleResolver*, RenderStyle*, Element*) const;
+    bool paintRadioUsingFallbackTheme(RenderObject*, const PaintInfo&, const IntRect&);
+
 public:
     // Methods for state querying
     ControlStates controlStatesForRenderer(const RenderObject* o) const;
     bool isActive(const RenderObject*) const;
     bool isChecked(const RenderObject*) const;
     bool isIndeterminate(const RenderObject*) const;
     bool isEnabled(const RenderObject*) const;
     bool isFocused(const RenderObject*) const;
     bool isPressed(const RenderObject*) const;
     bool isSpinUpButtonPartPressed(const RenderObject*) const;
@@ skipping 17 matching lines @@
     static const RGBA32 defaultTapHighlightColor = 0x66000000;
 
 #if USE(NEW_THEME)
     Theme* m_theme; // The platform-specific theme.
 #endif
 };
 
 } // namespace WebCore
 
 #endif // RenderTheme_h