Unreviewed.

        Added new text expectations for GTK port. They should be actually
        valid for any port using the libsoup backend. We need different
        results because as stated here
        https://bugs.webkit.org/show_bug.cgi?id=3812#c6, the original test
        results were designed for NSURLConnection which adds the
        "Content-Length: 0" header for null message bodies. That does not
        happen in libsoup, so instead of artificially add that header we
        better generate different results.

        Also take into account that for HEAD and GET requests the body is
        not included so we should expect always a null for them.

        * platform/gtk/Skipped:
        * platform/gtk/http/tests/xmlhttprequest/methods-async-expected.txt: Added.
        * platform/gtk/http/tests/xmlhttprequest/methods-expected.txt: Added.
        * platform/gtk/http/tests/xmlhttprequest/workers/methods-async-expected.txt: Added.
        * platform/gtk/http/tests/xmlhttprequest/workers/methods-expected.txt: Added.
        * platform/gtk/http/tests/xmlhttprequest/workers/shared-worker-methods-async-expected.txt: Added.
        * platform/gtk/http/tests/xmlhttprequest/workers/shared-worker-methods-expected.txt: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@78043 268f45cc-cd09-0410-ab3c-d52691b4dbfc