Reviewed by Adam Barth.

        https://bugs.webkit.org/show_bug.cgi?id=27405

        Tests that HTML entities that contain an invalid entity, such as an
        unknown named entity, are properly handled.

        * http/tests/security/xssAuditor/link-onclick-ampersand-expected.txt: Added.
        * http/tests/security/xssAuditor/link-onclick-ampersand.html: Added.
        * http/tests/security/xssAuditor/javascript-link-ampersand-expected.txt: Added.
        * http/tests/security/xssAuditor/javascript-link-ampersand.html: Added.

2009-07-17  Daniel Bates  <dbates@intudata.com>

        Reviewed by Adam Barth.

        https://bugs.webkit.org/show_bug.cgi?id=27405

        Fixes an issue when decoding HTML entities with an unknown named entity that
        caused null-characters to be inserted into the decoded result.

        Test: http/tests/security/xssAuditor/link-onclick-ampersand.html
              http/tests/security/xssAuditor/javascript-link-ampersand.html

        * page/XSSAuditor.cpp:
        (WebCore::XSSAuditor::decodeHTMLEntities): Added check to conditional so that
        non-zero entity values are not inserted during decoding process.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@46086 268f45cc-cd09-0410-ab3c-d52691b4dbfc