ChromeOS: Add RenameCryptohome and migration code.

chromeos/dbus/cryptohome_client.h

 // 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.
 
 #ifndef CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_
 #define CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 121 matching lines @@
   virtual void AsyncMigrateKey(const cryptohome::Identification& cryptohome_id,
                                const std::string& from_key,
                                const std::string& to_key,
                                const AsyncMethodCallback& callback) = 0;
 
   // Calls AsyncRemove method.  |callback| is called after the method call
   // succeeds.
   virtual void AsyncRemove(const cryptohome::Identification& cryptohome_id,
                            const AsyncMethodCallback& callback) = 0;
 
+  // Calls RenameCryptohome method. |callback| is called after the method
+  // call succeeds.
+  virtual void RenameCryptohome(
+      const cryptohome::Identification& cryptohome_id_from,
+      const cryptohome::Identification& cryptohome_id_to,
+      const ProtobufMethodCallback& callback) = 0;
+
   // Calls GetSystemSalt method.  |callback| is called after the method call
   // succeeds.
   virtual void GetSystemSalt(const GetSystemSaltCallback& callback) = 0;
 
   // Calls GetSanitizedUsername method.  |callback| is called after the method
   // call succeeds.
   virtual void GetSanitizedUsername(
       const cryptohome::Identification& cryptohome_id,
       const StringDBusMethodCallback& callback) = 0;
 
@@ skipping 389 matching lines @@
   // Create() should be used instead.
   CryptohomeClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CryptohomeClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_