Move NextProto enum to a new file net/socket/next_proto.h

net/socket/ssl_client_socket_nss.h

Index: net/socket/ssl_client_socket_nss.h
diff --git a/net/socket/ssl_client_socket_nss.h b/net/socket/ssl_client_socket_nss.h
index 08602760436defb685c6042fdbdba31ba9b66f54..666937c67a2b22d9196ca3f0756b69d3ffb53e44 100644
--- a/net/socket/ssl_client_socket_nss.h
+++ b/net/socket/ssl_client_socket_nss.h
@@ -66,7 +66,7 @@ class SSLClientSocketNSS : public SSLClientSocket {
                                    const base::StringPiece& context,
                                    unsigned char* out,
                                    unsigned int outlen) OVERRIDE;
-  virtual NextProtoStatus GetNextProto(std::string* proto,
+  virtual SSLClientSocket::NextProtoStatus GetNextProto(std::string* proto,
                                        std::string* server_protos) OVERRIDE;
 
   // StreamSocket implementation.
@@ -301,7 +301,7 @@ class SSLClientSocketNSS : public SSLClientSocket {
 
   // next_proto_ is the protocol that we selected by NPN.
   std::string next_proto_;
-  NextProtoStatus next_proto_status_;
+  SSLClientSocket::NextProtoStatus next_proto_status_;
   // Server's NPN advertised protocols.
   std::string server_protos_;