platformKeys: Add policy and corporate key tagging.

chrome/browser/chromeos/platform_keys/key_permissions_policy_handler.cc

+// Copyright 2015 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/platform_keys/key_permissions_policy_handler.h"
+
+#include "components/policy/core/common/schema.h"
+#include "policy/policy_constants.h"
+
+namespace chromeos {
+
+KeyPermissionsPolicyHandler::KeyPermissionsPolicyHandler(
+    const policy::Schema& chrome_schema)
+    : policy::SchemaValidatingPolicyHandler(
+          policy::key::kKeyPermissions,
+          chrome_schema.GetKnownProperty(policy::key::kKeyPermissions),
+          policy::SCHEMA_ALLOW_UNKNOWN) {
+}
+
+void KeyPermissionsPolicyHandler::ApplyPolicySettings(
+    const policy::PolicyMap& /* policies */,
+    PrefValueMap* /* prefs */) {
+}
+
+}  // namespace chromeos