Change PPB_NetAddress_Private.GetFamily to return a PP_AddressFamily_Private value instead of uint1…

ppapi/native_client/src/shared/ppapi_proxy/ppb_net_address_private.srpc

 # Copyright (c) 2011 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # RPC methods used to implement PPB_NetAddress_Private calls from the plugin.
 # See ppapi/c/private/ppb_net_address_private.h for interface details.
 
 {
   'name': 'PpbNetAddressPrivateRpc',
   'rpcs': [
@@ skipping 29 matching lines @@
     },
     {'name': 'PPB_NetAddress_Private_GetAnyAddress',
      'inputs': [['is_ipv6', 'int32_t'],              # PP_Bool
                ],
      'outputs': [['addr', 'char[]'],                 # PP_NetAddress_Private*
                 ]
     },
     {'name': 'PPB_NetAddress_Private_GetFamily',
      'inputs': [['addr', 'char[]'],                  # PP_NetAddress_Private*
                ],
-     'outputs': [['addr_family', 'int32_t'],         # uint16_t
+     'outputs': [['addr_family', 'int32_t'],         # PP_AddressFamily_Private
                 ]
     },
     {'name': 'PPB_NetAddress_Private_GetPort',
      'inputs': [['addr', 'char[]'],                  # PP_NetAddress_Private*
                ],
      'outputs': [['port', 'int32_t'],                # uint16_t
                 ]
     },
     {'name': 'PPB_NetAddress_Private_GetAddress',
      'inputs': [['addr', 'char[]'],                  # PP_NetAddress_Private*
                ],
      'outputs': [['address', 'char[]'],
                  ['success', 'int32_t'],             # PP_Bool
                 ]
     },
    ]
 }