Reviewed by Darin.

    Reviewed by Darin.

        Bug 9632: [Drosera] syntax highlighting is slow (reproducible 40 second hang)
        http://bugzilla.opendarwin.org/show_bug.cgi?id=9632

        Do not change the file source when normalizing the line endings.
        We use this file source to compare against new versions of the source
        as it comes in, so we can skip re-syntax highlighting if they are the same.
        The problem is apparent on yahoo.com since they have mixed line endings and
        once we normalize them the source will always be different. This was
        compounded by the fact that yahoo has around 40 inline scripts. Each
        inline script causes us to check if the main document has more loaded,
        that is when we compare the source strings. Since they are always different
        we would syntax highlight yahoo.com 40 times! We do check source length before
        doing a more expensive string comparison, but the lengths were the same.

        * Drosera/debugger.js:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15762 268f45cc-cd09-0410-ab3c-d52691b4dbfc