np_functions: fix typo: should call DidChangeFocus
np_functions: fix typo: should call DidChangeFocus

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