border-radius cssText always outputs to longhand properties

Source/core/css/StylePropertySerializer.cpp

Index: Source/core/css/StylePropertySerializer.cpp
diff --git a/Source/core/css/StylePropertySerializer.cpp b/Source/core/css/StylePropertySerializer.cpp
index 134b89106527c49616c5e919ac74d430199470c7..eb4f6823a2ef16c9857c06dd90a57d723fb795a0 100644
--- a/Source/core/css/StylePropertySerializer.cpp
+++ b/Source/core/css/StylePropertySerializer.cpp
@@ -123,6 +123,12 @@ String StylePropertySerializer::asText() const
             if (!shorthandPropertyID)
                 shorthandPropertyID = borderFallbackShorthandProperty;
             break;
+        case CSSPropertyBorderTopLeftRadius:
+        case CSSPropertyBorderTopRightRadius:
+        case CSSPropertyBorderBottomLeftRadius:
+        case CSSPropertyBorderBottomRightRadius:
+            shorthandPropertyID = CSSPropertyBorderRadius;
+            break;
         case CSSPropertyWebkitBorderHorizontalSpacing:
         case CSSPropertyWebkitBorderVerticalSpacing:
             shorthandPropertyID = CSSPropertyBorderSpacing;