[CSS Shapes] polygon y-value calc() args serialize incorrectly

LayoutTests/fast/shapes/parsing/parsing-test-utils.js

 // Valid values for both shape-inside and shape-outside. Two values are specified when the shape property value
 // differs from the specified value. Three values are specified when the computed shape property value differs
 // from the specified value.
 // eg: "specified value/CSS Text value/computed style value"
 // or: ["specified value", "CSS Text value/computed style value"]
 // or: ["specified value", "CSS Text value", "Computed style value"]
 var validShapeValues = [
     "none",
 
     ["inset(10px)", "inset(10px 10px 10px 10px)", "inset(10px 10px 10px 10px round 0px 0px 0px 0px / 0px 0px 0px 0px)"],
@@ skipping 51 matching lines @@
     ["ellipse(10px at left top 10px)", "ellipse(10px at 0% 10px)", "ellipse(10px closest-side at 0% 10px)"],
     ["ellipse(10px at top 10px left 10px)", "ellipse(10px at 10px 10px)", "ellipse(10px closest-side at 10px 10px)"],
     ["ellipse(10px at right 10px bottom 10px)", "ellipse(10px at right 10px bottom 10px)", "ellipse(10px closest-side at right 10px bottom 10px)"],
     ["ellipse(10px 20px at left top 10px)", "ellipse(10px 20px at 0% 10px)"],
     ["ellipse(10px 20px at top 10px left 10px)", "ellipse(10px 20px at 10px 10px)"],
     ["ellipse(10px 20px at right 10px bottom 10px)", "ellipse(10px 20px at right 10px bottom 10px)"],
 
     ["polygon(10px 20px, 30px 40px, 40px 50px)", "polygon(10px 20px, 30px 40px, 40px 50px)"],
     ["polygon(evenodd, 10px 20px, 30px 40px, 40px 50px)", "polygon(evenodd, 10px 20px, 30px 40px, 40px 50px)"],
     ["polygon(nonzero, 10px 20px, 30px 40px, 40px 50px)", "polygon(10px 20px, 30px 40px, 40px 50px)"],
+    ["polygon(10px calc(10in))", "polygon(10px calc(10in))", "polygon(10px 960px)"],
+    ["polygon(calc(10in) 10px)", "polygon(calc(10in) 10px)", "polygon(960px 10px)"],
 
     "content-box",
     "padding-box",
     "border-box",
     "margin-box",
 
     ["polygon(nonzero, 10px 10px, 20px 20px, 30px 30px) content-box", "polygon(10px 10px, 20px 20px, 30px 30px) content-box"],
     ["polygon(nonzero, 10px 10px, 20px 20px, 30px 30px) padding-box", "polygon(10px 10px, 20px 20px, 30px 30px) padding-box"],
     ["polygon(nonzero, 10px 10px, 20px 20px, 30px 30px) border-box",  "polygon(10px 10px, 20px 20px, 30px 30px) border-box"],
     ["polygon(nonzero, 10px 10px, 20px 20px, 30px 30px) margin-box",  "polygon(10px 10px, 20px 20px, 30px 30px) margin-box"],
@@ skipping 172 matching lines @@
 
 function testNotInheritedShapeProperty(property, parentValue, childValue, expectedValue)
 {
     shouldBeEqualToString('getParentAndChildComputedStylesString("' + property + '", "' + parentValue + '", "' + childValue + '")', expectedValue);
 }
 
 function applyToEachArglist(testFunction, arglists)
 {
     arglists.forEach(function(arglist, i, a) {testFunction.apply(null, arglist);});
 }