x11et: fix memory leak
x11et: fix memory leak

grevutiu-gabriel/freshplayerplugin,reuben/freshplayerplugin,reuben/freshplayerplugin,reuben/freshplayerplugin,grevutiu-gabriel/freshplayerplugin,Papapashu/freshplayerplugin,Papapashu/freshplayerplugin,Papapashu/freshplayerplugin