[CSS Exclusions] Add CSS parsing support for image URI shape-inside and shape-outside values

LayoutTests/fast/exclusions/script-tests/parsing-wrap-shape-outside.js

 description('Testing the parsing of the -webkit-shape-outside property.');
 
 if (window.internals)
     window.internals.settings.setCSSExclusionsEnabled(true);
 
 function testCSSText(declaration, expected)
 {
     var element = document.createElement("div");
     element.style.cssText = "-webkit-shape-outside: " + declaration;
     return element.style.webkitShapeOutside;
@@ skipping 31 matching lines @@
 
    return "parent: " + parentActual + ", child: " + childActual;
 }
 
 function test(value, expected) {
     var unevaledString = '"' + value.replace(/\\/g, "\\\\").replace(/"/g, "\"").replace(/\n/g, "\\n").replace(/\r/g, "\\r") + '"';
     shouldBeEqualToString('testCSSText(' + unevaledString + ')', expected);
     shouldBeEqualToString('testComputedStyle(' + unevaledString + ')', expected);
 }
 
+// Need to remove the base URL to avoid having local paths in the expected results.
+function removeBaseURL(src) {
+    var urlRegexp = /url\(([^\)]*)\)/g;
+    return src.replace(urlRegexp, function(match, url) {
+        return "url(" + url.substr(url.lastIndexOf("/") + 1) + ")";
+    });
+}
+
+function testLocalURL(value, expected) {
+    var unevaledString = '"' + value.replace(/\\/g, "\\\\").replace(/"/g, "\"").replace(/\n/g, "\\n").replace(/\r/g, "\\r") + '"';
+    shouldBeEqualToString('removeBaseURL(testCSSText(' + unevaledString + '))', expected);
+    shouldBeEqualToString('removeBaseURL(testComputedStyle(' + unevaledString + '))', expected);
+}
+
 function negative_test(value) {
     var unevaledString = '"' + value.replace(/\\/g, "\\\\").replace(/"/g, "\"").replace(/\n/g, "\\n").replace(/\r/g, "\\r") + '"';
     shouldBeEqualToString('testCSSText(' + unevaledString + ')', '');
     shouldBeEqualToString('testComputedStyle(' + unevaledString + ')', 'auto');
 }
 
 // positive tests
 
 test("auto", "auto");
 test("rectangle(10px, 20px, 30px, 40px)", "rectangle(10px, 20px, 30px, 40px)");
 test("rectangle(10px, 20px, 30px, 40px, 5px)", "rectangle(10px, 20px, 30px, 40px, 5px)");
 test("rectangle(10px, 20px, 30px, 40px, 5px, 10px)", "rectangle(10px, 20px, 30px, 40px, 5px, 10px)");
 
 test("circle(10px, 20px, 30px)", "circle(10px, 20px, 30px)");
 
 test("ellipse(10px, 20px, 30px, 40px)", "ellipse(10px, 20px, 30px, 40px)");
 
 test("polygon(10px 20px, 30px 40px, 40px 50px)", "polygon(nonzero, 10px 20px, 30px 40px, 40px 50px)");
 test("polygon(evenodd, 10px 20px, 30px 40px, 40px 50px)", "polygon(evenodd, 10px 20px, 30px 40px, 40px 50px)");
 test("polygon(nonzero, 10px 20px, 30px 40px, 40px 50px)", "polygon(nonzero, 10px 20px, 30px 40px, 40px 50px)");
 
+testLocalURL("url(\'image\')", "url(image)");
+
 shouldBeEqualToString('testNotInherited("auto", "rectangle(10px, 20px, 30px, 40px)")', "parent: auto, child: rectangle(10px, 20px, 30px, 40px)");
 shouldBeEqualToString('testNotInherited("rectangle(10px, 20px, 30px, 40px)", "initial")', "parent: rectangle(10px, 20px, 30px, 40px), child: auto");
 shouldBeEqualToString('testNotInherited("rectangle(10px, 20px, 30px, 40px)", "")', "parent: rectangle(10px, 20px, 30px, 40px), child: auto");
 shouldBeEqualToString('testNotInherited("rectangle(10px, 20px, 30px, 40px)", "inherit")', "parent: rectangle(10px, 20px, 30px, 40px), child: rectangle(10px, 20px, 30px, 40px)");
 shouldBeEqualToString('testNotInherited("", "inherit")', "parent: auto, child: auto");
 shouldBeEqualToString('testNotInherited("auto", "inherit")', "parent: auto, child: auto");
 
 // negative tests
 
 negative_test("calc()");
@@ skipping 21 matching lines @@
 
 negative_test("polygon()");
 negative_test("polygon(evenodd 10px 20px, 30px 40px, 40px 50px)");
 negative_test("polygon(nonzero 10px 20px, 30px 40px, 40px 50px)");
 negative_test("polygon(nonzero)");
 negative_test("polygon(evenodd)");
 negative_test("polygon(10px)");
 negative_test("polygon(nonzero,10px)");
 negative_test("polygon(evenodd,12px)");
 negative_test("polygon(10px, 20px, 30px, 40px, 40px, 50px)");