- fixed 3144771 - Crash in KJS::WindowFunc::tryCall leaving www.smogcheck.org

	I fixed this by making sure we couldn't send the unload event twice, which was
	happening before in certain circumstances.

        * khtml/khtml_part.cpp:
        (KHTMLPart::closeURL): When emitting load event, note that unload
	event has not yet been sent.
        (KHTMLPart::checkEmitLoadEvent): Note when unload event has been
	sent to avoid sending it twice.
        * khtml/khtmlpart_p.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@3343 268f45cc-cd09-0410-ab3c-d52691b4dbfc