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

Source/core/rendering/style/RenderStyle.h

Index: Source/core/rendering/style/RenderStyle.h
diff --git a/Source/core/rendering/style/RenderStyle.h b/Source/core/rendering/style/RenderStyle.h
index 827218d0f388b819a7a3d22909887e2932894c0d..1f25e05d160cc05f46a030ff63fa7b192372a269 100644
--- a/Source/core/rendering/style/RenderStyle.h
+++ b/Source/core/rendering/style/RenderStyle.h
@@ -61,6 +61,7 @@
 #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"
@@ -1885,6 +1886,8 @@ inline bool RenderStyle::hasPseudoElementStyle() const
     return noninherited_flags._pseudoBits & PSEUDO_ELEMENT_MASK;
 }
 
+float calcBorderRadiiConstraintScaleFor(const FloatRect&, const FloatRoundedRect::Radii&);
+
 } // namespace WebCore
 
 #endif // RenderStyle_h