tests: free returned memory blocks in test_ppb_char_set_dev
tests: free returned memory blocks in test_ppb_char_set_dev

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