Revert of Unify enum NextProto and enum AlternateProtocol.

net/socket/ssl_client_socket.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SOCKET_SSL_CLIENT_SOCKET_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 65 matching lines @@
 //
 class NET_EXPORT SSLClientSocket : public SSLSocket {
  public:
   SSLClientSocket();
 
   // Gets the SSL CertificateRequest info of the socket after Connect failed
   // with ERR_SSL_CLIENT_AUTH_CERT_NEEDED.
   virtual void GetSSLCertRequestInfo(
       SSLCertRequestInfo* cert_request_info) = 0;
 
+  static NextProto NextProtoFromString(base::StringPiece proto_string);
+
+  static const char* NextProtoToString(NextProto next_proto);
+
   // Log SSL key material to |path| on |task_runner|. Must be called before any
   // SSLClientSockets are created.
   //
   // TODO(davidben): Switch this to a parameter on the SSLClientSocketContext
   // once https://crbug.com/458365 is resolved. This will require splitting
   // SSLKeyLogger into an interface, built with OS_NACL and a non-NaCl
   // SSLKeyLoggerImpl.
   static void SetSSLKeyLogFile(
       const base::FilePath& path,
       const scoped_refptr<base::SequencedTaskRunner>& task_runner);
@@ skipping 56 matching lines @@
 
   // True if SCTs were received via a TLS extension.
   bool signed_cert_timestamps_received_;
   // True if a stapled OCSP response was received.
   bool stapled_ocsp_response_received_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_H_