Don't require getPropertyCSSValue in fast tests

LayoutTests/fast/dom/script-tests/non-numeric-values-numeric-parameters.js

 description(
 'This tests the behavior of non-numeric values in contexts where the DOM has a numeric parameter.'
 );
 
 function nonNumericPolicy(template)
 {
     var x = 0;
     try {
         eval(template);
     } catch (e) {
@@ skipping 115 matching lines @@
     return createCSSRuleList().item(0).style;
 }
 
 function createCSSMediaRule()
 {
     var rule = createFromMarkup("<style>@media screen { a { text-weight: bold } }</style>").sheet.cssRules.item(0);
     rule.insertRule(ruleText, 0);
     return rule;
 }
 
-function createCSSValueList()
-{
-    // FIXME: Not working in Firefox, not sure why.
-    return createFromMarkup("<style>a { font-family: b, c }</style>").sheet.cssRules.item(0).style.getPropertyCSSValue("font-family");
-}
-
 function createMediaList()
 {
     return createCSSMediaRule().media;
 }
 
 function createHTMLSelectElement()
 {
     var select = document.createElement("select");
     select.options.add(document.createElement("option"));
     return select;
@@ skipping 49 matching lines @@
 
 shouldBe("nonNumericPolicy('createCSSStyleDeclaration().item(x)')", "'any type allowed'");
 
 // CSSStyleSheet
 
 shouldBe("nonNumericPolicy('createCSSStyleSheet().insertRule(ruleText, x)')", "'any type allowed'");
 shouldBe("nonNumericPolicy('createCSSStyleSheet().deleteRule(x)')", "'any type allowed (but not omitted)'");
 shouldBe("nonNumericPolicy('createCSSStyleSheet().addRule(selector, styleText, x)')", "'any type allowed'");
 shouldBe("nonNumericPolicy('createCSSStyleSheet().removeRule(x)')", "'any type allowed'");
 
-// CSSValueList
-
-shouldBe("nonNumericPolicy('createCSSValueList().item(x)')", "'any type allowed (but not omitted)'");
-
 // Document
 
 shouldBe("nonNumericPolicy('document.elementFromPoint(x, 0)')", "'any type allowed'");
 shouldBe("nonNumericPolicy('document.elementFromPoint(0, x)')", "'any type allowed'");
 
 // Element
 
 shouldBe("nonNumericPolicy('document.body.scrollLeft = x')", "'mixed'");
 shouldBe("nonNumericPolicy('document.body.scrollTop = x')", "'mixed'");
 
@@ skipping 408 matching lines @@
 ../../../../WebCore/svg/SVGSVGElement.idl:                 attribute float currentScale
 
 ../../../../WebCore/svg/SVGMatrix.idl:        attribute double a;
 ../../../../WebCore/svg/SVGMatrix.idl:        attribute double b;
 ../../../../WebCore/svg/SVGMatrix.idl:        attribute double c;
 ../../../../WebCore/svg/SVGMatrix.idl:        attribute double d;
 ../../../../WebCore/svg/SVGMatrix.idl:        attribute double e;
 ../../../../WebCore/svg/SVGMatrix.idl:        attribute double f;
 
 */