pp_resource: protect hashtable creation by lock
pp_resource: protect hashtable creation by lock

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