[patch] fix plugin with xulrunner-1.9.1

[Matthias Klose]

patch contributed by TJ, see https://launchpad.net/bugs/359407 for the original 
report.

ok for 6, the 1.6 branch and 7?

   Matthias

PS: No, I don't know the real name of TJ.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: plugin.diff
Type: text/x-diff
Size: 1619 bytes
Desc: not available
Url : http://mail.openjdk.java.net/pipermail/distro-pkg-dev/attachments/20090918/abed0214/plugin.diff