Reviewed by Darin.

    Reviewed by Darin.

        - fix http://bugzilla.opendarwin.org/show_bug.cgi?id=7877
        XMLHttpRequest ignores username/password passed to open()

        Test: http/tests/xmlhttprequest/basic-auth.html

        * platform/KURL.cpp:
        (KURL::setUser): Enable a code path that handles non-empty user name -
        it was already present, but commented out and protected with an assertion.
        (KURL::setPass): Ditto.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@13751 268f45cc-cd09-0410-ab3c-d52691b4dbfc