2008-10-23 Darin Fisher <darin@chromium.org>

2008-10-23  Darin Fisher  <darin@chromium.org>

        Reviewed by Eric Seidel.

        m_frame null checked but then dereferenced
        https://bugs.webkit.org/show_bug.cgi?id=21845

        This error was found using a static analysis tool, and so I do not know
        how to produce a null m_frame on entry to this method.  Hence, I have
        not included a regression test.

        * page/EventHandler.cpp:
        (WebCore::EventHandler::allowDHTMLDrag): Add an early return.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@37834 268f45cc-cd09-0410-ab3c-d52691b4dbfc