particular behavior with regard to determining the size of a popup. thanks
to the absolutely tireless work of gregers on this issue! Also, in case
anyone was wondering? Browsers suck. (Pullup #1906)
git-svn-id: http://svn.openlayers.org/trunk/openlayers@9384 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf