[CSS Shapes] inset does not properly clamp large corner radii

Source/core/rendering/style/RenderStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 43 matching lines @@
 #include "core/rendering/style/StyleTransformData.h"
 #include "core/rendering/style/StyleVisualData.h"
 #include "core/rendering/style/StyleWillChangeData.h"
 #include "core/svg/SVGPaint.h"
 #include "platform/Length.h"
 #include "platform/LengthBox.h"
 #include "platform/LengthSize.h"
 #include "platform/ThemeTypes.h"
 #include "platform/fonts/FontBaseline.h"
 #include "platform/fonts/FontDescription.h"
+#include "platform/geometry/FloatRoundedRect.h"
 #include "platform/geometry/LayoutBoxExtent.h"
 #include "platform/geometry/RoundedRect.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "platform/text/TextDirection.h"
 #include "platform/text/UnicodeBidi.h"
 #include "platform/transforms/TransformOperations.h"
 #include "wtf/Forward.h"
 #include "wtf/OwnPtr.h"
@@ skipping 1804 matching lines @@
     ASSERT(pseudo > NOPSEUDO);
     ASSERT(pseudo < FIRST_INTERNAL_PSEUDOID);
     noninherited_flags._pseudoBits |= 1 << (pseudo - 1);
 }
 
 inline bool RenderStyle::hasPseudoElementStyle() const
 {
     return noninherited_flags._pseudoBits & PSEUDO_ELEMENT_MASK;
 }
 
+float calcBorderRadiiConstraintScaleFor(const FloatRect&, const FloatRoundedRect::Radii&);
+
 } // namespace WebCore
 
 #endif // RenderStyle_h