ChromeOS: Add RenameCryptohome and migration code.

chromeos/cryptohome/homedir_methods.cc

 // Copyright 2014 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 "chromeos/cryptohome/homedir_methods.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 260 matching lines @@
     FillAuthorizationProtobuf(auth, &auth_proto);
     FillKeyProtobuf(new_key, pb_update_key.mutable_changes());
     pb_update_key.set_authorization_signature(signature);
 
     DBusThreadManager::Get()->GetCryptohomeClient()->UpdateKeyEx(
         id, auth_proto, pb_update_key,
         base::Bind(&HomedirMethodsImpl::OnBaseReplyCallback,
                    weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
+  void RenameCryptohome(const Identification& id_from,
+                        const Identification& id_to,
+                        const Callback& callback) override {
+    DBusThreadManager::Get()->GetCryptohomeClient()->RenameCryptohome(
+        id_from, id_to, base::Bind(&HomedirMethodsImpl::OnBaseReplyCallback,
+                                   weak_ptr_factory_.GetWeakPtr(), callback));
+  }
+
  private:
   void OnGetKeyDataExCallback(const GetKeyDataCallback& callback,
                               chromeos::DBusMethodCallStatus call_status,
                               bool result,
                               const BaseReply& reply) {
     if (call_status != chromeos::DBUS_METHOD_CALL_SUCCESS) {
       callback.Run(false, MOUNT_ERROR_FATAL, std::vector<KeyDefinition>());
       return;
     }
     if (reply.has_error()) {
@@ skipping 159 matching lines @@
   }
   delete g_homedir_methods;
   g_homedir_methods = NULL;
   VLOG(1) << "HomedirMethods Shutdown completed";
 }
 
 // static
 HomedirMethods* HomedirMethods::GetInstance() { return g_homedir_methods; }
 
 }  // namespace cryptohome