valueForBorderRadiusShorthand returns wrong values in some case.

Source/core/css/CSSComputedStyleDeclaration.cpp

Index: Source/core/css/CSSComputedStyleDeclaration.cpp
diff --git a/Source/core/css/CSSComputedStyleDeclaration.cpp b/Source/core/css/CSSComputedStyleDeclaration.cpp
index 3ea1599ce112840cefc8ec5f69f4d31c425cc980..1bccb61d1b148c402e9103acf19451ec6b7465f4 100644
--- a/Source/core/css/CSSComputedStyleDeclaration.cpp
+++ b/Source/core/css/CSSComputedStyleDeclaration.cpp
@@ -693,13 +693,14 @@ static PassRefPtr<CSSValue> valueForBorderRadiusCorner(LengthSize radius, const
 static PassRefPtr<CSSValueList> valueForBorderRadiusShorthand(const RenderStyle* style, RenderObject* renderer, RenderView* renderView)
 {
     RefPtr<CSSValueList> list = CSSValueList::createSlashSeparated();
+
     bool showHorizontalBottomLeft = style->borderTopRightRadius().width() != style->borderBottomLeftRadius().width();
-    bool showHorizontalBottomRight = style->borderBottomRightRadius().width() != style->borderTopLeftRadius().width();
-    bool showHorizontalTopRight = style->borderTopRightRadius().width() != style->borderTopLeftRadius().width();
+    bool showHorizontalBottomRight = showHorizontalBottomLeft || (style->borderBottomRightRadius().width() != style->borderTopLeftRadius().width());
+    bool showHorizontalTopRight = showHorizontalBottomRight || (style->borderTopRightRadius().width() != style->borderTopLeftRadius().width());
 
     bool showVerticalBottomLeft = style->borderTopRightRadius().height() != style->borderBottomLeftRadius().height();
-    bool showVerticalBottomRight = (style->borderBottomRightRadius().height() != style->borderTopLeftRadius().height()) || showVerticalBottomLeft;
-    bool showVerticalTopRight = (style->borderTopRightRadius().height() != style->borderTopLeftRadius().height()) || showVerticalBottomRight;
+    bool showVerticalBottomRight = showVerticalBottomLeft || (style->borderBottomRightRadius().height() != style->borderTopLeftRadius().height());
+    bool showVerticalTopRight = showVerticalBottomRight || (style->borderTopRightRadius().height() != style->borderTopLeftRadius().height());
     bool showVerticalTopLeft = (style->borderTopLeftRadius().width() != style->borderTopLeftRadius().height());
 
     RefPtr<CSSValueList> topLeftRadius = valuesForBorderRadiusCorner(style->borderTopLeftRadius(), style, renderer, renderView);