Stateful BoxBorderPainter

Source/platform/geometry/FloatRoundedRect.h

 /*
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 76 matching lines @@
         void show();
 #endif
 
     private:
         FloatSize m_topLeft;
         FloatSize m_topRight;
         FloatSize m_bottomLeft;
         FloatSize m_bottomRight;
     };
 
+    FloatRoundedRect() { }
     explicit FloatRoundedRect(const FloatRect&, const Radii& = Radii());
     FloatRoundedRect(float x, float y, float width, float height);
     FloatRoundedRect(const FloatRect&, const FloatSize& topLeft, const FloatSize& topRight, const FloatSize& bottomLeft, const FloatSize& bottomRight);
 
     const FloatRect& rect() const { return m_rect; }
     const Radii& radii() const { return m_radii; }
     bool isRounded() const { return !m_radii.isZero(); }
     bool isEmpty() const { return m_rect.isEmpty(); }
 
     void setRect(const FloatRect& rect) { m_rect = rect; }
@@ skipping 91 matching lines @@
 
 
 inline bool operator==(const FloatRoundedRect& a, const FloatRoundedRect& b)
 {
     return a.rect() == b.rect() && a.radii() == b.radii();
 }
 
 } // namespace blink
 
 #endif // FloatRoundedRect_h