[net/auth] Disable use of channel bindings on Posix.

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 828 matching lines @@
       &principal_name);
   int rv = MapImportNameStatusToError(major_status);
   if (rv != OK) {
     LOG(ERROR) << "Problem importing name from "
                << "spn \"" << spn_principal << "\"\n"
                << DisplayExtendedStatus(library_, major_status, minor_status);
     return rv;
   }
   ScopedName scoped_name(principal_name, library_);
 
-  std::vector<char> channel_bindings_data;
-  std::unique_ptr<gss_channel_bindings_struct> gss_channel_bindings;
-  if (!channel_bindings.empty()) {
-    gss_channel_bindings.reset(new gss_channel_bindings_struct);
-    memset(gss_channel_bindings.get(), 0, sizeof(gss_channel_bindings_struct));
-    channel_bindings_data.assign(channel_bindings.begin(),
-                                 channel_bindings.end());
-    gss_channel_bindings->application_data.value = channel_bindings_data.data();
-    gss_channel_bindings->application_data.length =
-        channel_bindings_data.size();
-  }
-
   // Continue creating a security context.
   OM_uint32 req_flags = 0;
   if (can_delegate_)
     req_flags |= GSS_C_DELEG_FLAG;
   major_status = library_->init_sec_context(
       &minor_status, GSS_C_NO_CREDENTIAL, scoped_sec_context_.receive(),
       principal_name, gss_oid_, req_flags, GSS_C_INDEFINITE,
-      gss_channel_bindings ? gss_channel_bindings.get()
-                           : GSS_C_NO_CHANNEL_BINDINGS,
-      in_token,
+      GSS_C_NO_CHANNEL_BINDINGS, in_token,
       nullptr,  // actual_mech_type
       out_token,
       nullptr,  // ret flags
       nullptr);
   rv = MapInitSecContextStatusToError(major_status);
   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