Add CORS support for <link> elements.

LayoutTests/fast/dom/HTMLLinkElement/link-crossOrigin-expected.txt

Index: LayoutTests/fast/dom/HTMLLinkElement/link-crossOrigin-expected.txt
diff --git a/LayoutTests/fast/dom/HTMLLinkElement/link-crossOrigin-expected.txt b/LayoutTests/fast/dom/HTMLLinkElement/link-crossOrigin-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..05e1a9c7b0fc9a107d3a61cd0a7b32db4a65e24d
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+++ b/LayoutTests/fast/dom/HTMLLinkElement/link-crossOrigin-expected.txt
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+This tests the handling of the link.crossOrigin attribute
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS 'crossOrigin' in link is true
+PASS link.crossOrigin is ""
+PASS link.setAttribute('crossorigin', ''); link.crossOrigin is "anonymous"
+PASS link.removeAttribute('crossorigin'); link.crossOrigin is ""
+PASS link.setAttribute('crossorigin', 'foo'); link.crossOrigin is "anonymous"
+PASS link.setAttribute('crossorigin', 'ANONYMOUS'); link.crossOrigin is "anonymous"
+PASS link.setAttribute('crossorigin', 'use-credentials'); link.crossOrigin is "use-credentials"
+PASS link.crossOrigin = ''; link.getAttribute('crossorigin') is ""
+PASS link.crossOrigin = 'foo'; link.getAttribute('crossorigin') is "foo"
+PASS link.crossOrigin = null; link.getAttribute('crossorigin') is "null"
+PASS link.crossOrigin = 'ANONYMOUS'; link.getAttribute('crossorigin') is "ANONYMOUS"
+PASS link.crossOrigin = 'use-credentials'; link.getAttribute('crossorigin') is "use-credentials"
+PASS successfullyParsed is true
+
+TEST COMPLETE
+