ChromeOS cryptohome should be able to use gaia id as user identifier.

chromeos/dbus/cryptohome_client.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 "chromeos/dbus/cryptohome_client.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 104 matching lines @@
                                  cryptohome::kCryptohomeAsyncRemove);
     dbus::MessageWriter writer(&method_call);
     writer.AppendString(username);
     proxy_->CallMethod(&method_call, kTpmDBusTimeoutMs ,
                        base::Bind(&CryptohomeClientImpl::OnAsyncMethodCall,
                                   weak_ptr_factory_.GetWeakPtr(),
                                   callback));
   }
 
   // CryptohomeClient override.
+  void RenameCryptohome(const cryptohome::AccountIdentifier& id_from,
+                        const cryptohome::AccountIdentifier& id_to,
+                        const ProtobufMethodCallback& callback) override {
+    const char* method_name = cryptohome::kCryptohomeRenameCryptohome;
+    dbus::MethodCall method_call(cryptohome::kCryptohomeInterface, method_name);
+
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendProtoAsArrayOfBytes(id_from);
+    writer.AppendProtoAsArrayOfBytes(id_to);
+    proxy_->CallMethod(&method_call, kTpmDBusTimeoutMs,
+                       base::Bind(&CryptohomeClientImpl::OnBaseReplyMethod,
+                                  weak_ptr_factory_.GetWeakPtr(), callback));
+  }
+
+  // CryptohomeClient override.
   void GetSystemSalt(const GetSystemSaltCallback& callback) override {
     dbus::MethodCall method_call(cryptohome::kCryptohomeInterface,
                                  cryptohome::kCryptohomeGetSystemSalt);
     proxy_->CallMethod(&method_call, kTpmDBusTimeoutMs ,
                        base::Bind(&CryptohomeClientImpl::OnGetSystemSalt,
                                   weak_ptr_factory_.GetWeakPtr(),
                                   callback));
   }
 
   // CryptohomeClient override,
@@ skipping 194 matching lines @@
     proxy_->CallMethod(
         &method_call, kTpmDBusTimeoutMs ,
         base::Bind(
             &CryptohomeClientImpl::OnPkcs11GetTpmTokenInfo,
             weak_ptr_factory_.GetWeakPtr(),
             callback));
   }
 
   // CryptohomeClient override.
   void Pkcs11GetTpmTokenInfoForUser(
-      const std::string& user_email,
+      const std::string& user_id,
       const Pkcs11GetTpmTokenInfoCallback& callback) override {
     dbus::MethodCall method_call(
         cryptohome::kCryptohomeInterface,
         cryptohome::kCryptohomePkcs11GetTpmTokenInfoForUser);
     dbus::MessageWriter writer(&method_call);
-    writer.AppendString(user_email);
+    writer.AppendString(user_id);
     proxy_->CallMethod(
         &method_call, kTpmDBusTimeoutMs ,
         base::Bind(
             &CryptohomeClientImpl::OnPkcs11GetTpmTokenInfoForUser,
             weak_ptr_factory_.GetWeakPtr(),
             callback));
   }
 
   // CryptohomeClient override.
   bool InstallAttributesGet(const std::string& name,
@@ skipping 781 matching lines @@
   return new CryptohomeClientImpl();
 }
 
 // static
 std::string CryptohomeClient::GetStubSanitizedUsername(
     const std::string& username) {
   return username + kUserIdStubHashSuffix;
 }
 
 }  // namespace chromeos