Enhanced and refactored the AttestationFlow interface.

chromeos/attestation/attestation_constants.cc

Index: chromeos/attestation/attestation_constants.cc
diff --git a/chromeos/attestation/attestation_constants.cc b/chromeos/attestation/attestation_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9f3833b714b9f6dfc4ebf898d20b84945acb6e5c
--- /dev/null
+++ b/chromeos/attestation/attestation_constants.cc
@@ -0,0 +1,14 @@
+// Copyright (c) 2013 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/attestation/attestation_constants.h"
+
+namespace chromeos {
+namespace attestation {
+
+const char kEnterpriseMachineKey[] = "attest-ent-machine";
+const char kEnterpriseUserKey[] = "attest-ent-user";
+
+}  // namespace attestation
+}  // namespace chromeos