Add ManagementMode enum and GetManagementMode().

chrome/browser/chromeos/policy/policy_util.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 "chrome/browser/chromeos/policy/policy_util.h"
+
+#include "policy/proto/device_management_backend.pb.h"
+
+namespace em = enterprise_management;
+
+namespace policy {
+
+// static
+bool PolicyUtil::IsConsumerManaged(const em::PolicyData& policy_data) {
+  return policy_data.management_mode() == em::PolicyData::CONSUMER_MANAGED;
+}
+
+// static
+bool PolicyUtil::IsEnterpriseManaged(const em::PolicyData& policy_data) {
+  return policy_data.has_management_mode() ?
+      policy_data.management_mode() == em::PolicyData::ENTERPRISE_MANAGED :
+      policy_data.has_request_token();
+}
+
+// static
+bool PolicyUtil::IsLocalOwned(const em::PolicyData& policy_data) {
+  return policy_data.has_management_mode() ?
+      policy_data.management_mode() == em::PolicyData::LOCAL_OWNER :
+      !policy_data.has_request_token();
+}
+
+}  // namespace policy