Cleanup AuthenticatorMethod usage.

remoting/protocol/auth_util.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 REMOTING_PROTOCOL_AUTH_UTIL_H_
 #define REMOTING_PROTOCOL_AUTH_UTIL_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 13 matching lines @@
 
 // Fake hostname used for SSL connections.
 extern const char kSslFakeHostName[];
 
 // Size of the HMAC-SHA-256 hash used as shared secret in SPAKE2.
 const size_t kSharedSecretHashLength = 32;
 
 // Size of the HMAC-SHA-256 digest used for channel authentication.
 const size_t kAuthDigestLength = 32;
 
-// TODO(sergeyu): The following two methods are used for V1
-// authentication. Remove them when we finally switch to V2
-// authentication method. crbug.com/110483 .
-
-// Generates auth token for the specified |jid| and |access_code|.
-std::string GenerateSupportAuthToken(const std::string& jid,
-                                     const std::string& access_code);
-
-// Verifies validity of an |access_token|.
-bool VerifySupportAuthToken(const std::string& jid,
-                            const std::string& access_code,
-                            const std::string& auth_token);
+// Applies the specified hash function to |shared_secret| with the

[Jamie, 2016/03/08 02:17:38]

There is no specified hash function. Perhaps s/the specified hash
function/HMAC-SHA-256/?

[Sergey Ulanov, 2016/03/08 18:32:40]

Done.

+// specified |tag| as a key.
+std::string GetSharedSecretHash(const std::string& tag,
+                                const std::string& shared_secret);
 
 // Returns authentication bytes that must be used for the given
 // |socket|. Empty string is returned in case of failure.
 std::string GetAuthBytes(net::SSLSocket* socket,
                          const base::StringPiece& label,
                          const base::StringPiece& shared_secret);
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_AUTH_UTIL_H_