The old Java Plug-In, when encountering an initially invisible applet,
would initialize the applet with the width and height from the applet
tag. Adjusted the heuristics of the new Java Plug-In for IE to have
the same behavior.
Tested with the speed-trap.com dashboard, the AcuteScroller applet
from http://javaboutique.internet.com/AcuteScroller, the VRX studios
hotel applets (http://vrxstudios.com/hotel_program), the games at
iWon.com (http://games.iwon.com/), the Pogo games, and the regression
test for 6627606.