[net/http auth] Cleanup. Method names, and constness.

net/http/http_auth_sspi_win.h

 // Copyright (c) 2011 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.
 
 // This file contains common routines used by NTLM and Negotiate authentication
 // using the SSPI API on Windows.
 
 #ifndef NET_HTTP_HTTP_AUTH_SSPI_WIN_H_
 #define NET_HTTP_HTTP_AUTH_SSPI_WIN_H_
 
@@ skipping 101 matching lines @@
                const std::string& scheme,
                const SEC_WCHAR* security_package,
                ULONG max_token_length);
   ~HttpAuthSSPI();
 
   bool NeedsIdentity() const;
 
   bool AllowsExplicitCredentials() const;
 
   HttpAuth::AuthorizationResult ParseChallenge(
-      HttpAuthChallengeTokenizer* tok);
+      const HttpAuthChallengeTokenizer& tok);
 
   // Generates an authentication token.
   //
   // The return value is an error code. The authentication token will be
   // returned in |*auth_token|. If the result code is not |OK|, the value of
   // |*auth_token| is unspecified.
   //
   // If the operation cannot be completed synchronously, |ERR_IO_PENDING| will
   // be returned and the real result code will be passed to the completion
   // callback.  Otherwise the result code is returned immediately from this
@@ skipping 67 matching lines @@
 // If the return value is ERR_UNEXPECTED, there was an unanticipated problem
 // in the underlying SSPI call. The details are logged, and |*max_token_length|
 // is not changed.
 NET_EXPORT_PRIVATE int DetermineMaxTokenLength(SSPILibrary* library,
                                                const std::wstring& package,
                                                ULONG* max_token_length);
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_AUTH_SSPI_WIN_H_