Make sure <url>s are being serialized according to spec

third_party/WebKit/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)",
@@ skipping 235 matching lines @@
     shouldBeEqualToString('getComputedStyleValue("' + property + '", "' + value + '")', expectedValue);
 }
 
 function testNotInheritedShapeChildProperty(property, parentValue, childValue, expectedChildValue)
 {
     shouldBeEqualToString('getChildComputedStyle("' + property + '", "' + parentValue + '", "' + childValue + '")', expectedChildValue);
 }
 
 // Need to remove the base URL to avoid having local paths in the expected results.
 function removeBaseURL(src) {
-    var urlRegexp = /url\(([^\)]*)\)/g;
+    var urlRegexp = /url\(\"([^\)]*)\)/g;
     return src.replace(urlRegexp, function(match, url) {
-        return "url(" + url.substr(url.lastIndexOf("/") + 1) + ")";
+        return 'url("' + url.substr(url.lastIndexOf("/") + 1) + ")";
     });
 }
 
 function testLocalURLShapeProperty(property, value, expected)
 {
     shouldBeEqualToString('removeBaseURL(getCSSText("' + property + '", "' + value + '"))', expected);
     shouldBeEqualToString('removeBaseURL(getComputedStyleValue("' + property + '", "' + value + '"))', expected);
 }
 
 function testShapePropertyParsingFailure(property, value, defaultComputedStyle)
 {
     shouldBeEqualToString('getCSSText("' + property + '", "' + value + '")', '');
     shouldBeEqualToString('getComputedStyleValue("' + property + '", "' + value + '")', defaultComputedStyle);
 }
 
 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);});
 }