Support Kerberos on Android

net/http/http_auth_gssapi_posix.cc

 // 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.
 
 #include "net/http/http_auth_gssapi_posix.h"
 
 #include <limits>
 #include <string>
 
 #include "base/base64.h"
@@ skipping 701 matching lines @@
   std::string decoded_auth_token;
   bool base64_rv = base::Base64Decode(encoded_auth_token, &decoded_auth_token);
   if (!base64_rv)
     return HttpAuth::AUTHORIZATION_RESULT_INVALID;
   decoded_server_auth_token_ = decoded_auth_token;
   return HttpAuth::AUTHORIZATION_RESULT_ACCEPT;
 }
 
 int HttpAuthGSSAPI::GenerateAuthToken(const AuthCredentials* credentials,
                                       const std::string& spn,
-                                      std::string* auth_token) {
+                                      std::string* auth_token,
+                                      const CompletionCallback& callback) {
   DCHECK(auth_token);
 
   gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
   input_token.length = decoded_server_auth_token_.length();
   input_token.value = (input_token.length > 0) ?
       const_cast<char*>(decoded_server_auth_token_.data()) :
       NULL;
   gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER;
   ScopedBuffer scoped_output_token(&output_token, library_);
   int rv = GetNextSecurityToken(spn, &input_token, &output_token);
@@ skipping 150 matching lines @@
   if (rv != OK) {
     LOG(ERROR) << "Problem initializing context. \n"
                << DisplayExtendedStatus(library_, major_status, minor_status)
                << '\n'
                << DescribeContext(library_, scoped_sec_context_.get());
   }
   return rv;
 }
 
 }  // namespace net