Enable loading gssapi library for Chromad.

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 362 matching lines @@
                                                 DescribeOid(gssapi_lib,
                                                             mech_type).c_str(),
                                                 ctx_flags,
                                                 locally_initiated,
                                                 open);
   return description;
 }
 
 }  // namespace
 
-GSSAPISharedLibrary::GSSAPISharedLibrary(const std::string& gssapi_library_name)
+GSSAPISharedLibrary::GSSAPISharedLibrary(const std::string& gssapi_library_name,
+                                         bool allow_gssapi_library_load)
     : initialized_(false),
       gssapi_library_name_(gssapi_library_name),
+      allow_gssapi_library_load_(allow_gssapi_library_load),
       gssapi_library_(NULL),
       import_name_(NULL),
       release_name_(NULL),
       release_buffer_(NULL),
       display_name_(NULL),
       display_status_(NULL),
       init_sec_context_(NULL),
       wrap_size_limit_(NULL),
       delete_sec_context_(NULL),
-      inquire_context_(NULL) {
-}
+      inquire_context_(NULL) {}
 
 GSSAPISharedLibrary::~GSSAPISharedLibrary() {
   if (gssapi_library_) {
     base::UnloadNativeLibrary(gssapi_library_);
     gssapi_library_ = NULL;
   }
 }
 
 bool GSSAPISharedLibrary::Init() {
   if (!initialized_)
     InitImpl();
   return initialized_;
 }
 
 bool GSSAPISharedLibrary::InitImpl() {
   DCHECK(!initialized_);
 #if defined(DLOPEN_KERBEROS)
+  // On Chrome OS only Active Directory managed devices are configured
+  // to use Kerberos.
+  if (!allow_gssapi_library_load_)
+    return false;
+
   gssapi_library_ = LoadSharedLibrary();
   if (gssapi_library_ == NULL)
     return false;
 #endif  // defined(DLOPEN_KERBEROS)
   initialized_ = true;
   return true;
 }
 
 base::NativeLibrary GSSAPISharedLibrary::LoadSharedLibrary() {
   const char* const* library_names;
@@ skipping 438 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