Move PolicyMap and its dependencies to components/policy/.

chrome/browser/policy/policy_types.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 CHROME_BROWSER_POLICY_POLICY_TYPES_H_
-#define CHROME_BROWSER_POLICY_POLICY_TYPES_H_
-
-namespace policy {
-
-// The scope of a policy flags whether it is meant to be applied to the current
-// user or to the machine.
-enum PolicyScope {
-  // USER policies apply to sessions of the current user.
-  POLICY_SCOPE_USER,
-
-  // MACHINE policies apply to any users of the current machine.
-  POLICY_SCOPE_MACHINE,
-};
-
-// The level of a policy determines its enforceability and whether users can
-// override it or not. The values are listed in increasing order of priority.
-enum PolicyLevel {
-  // RECOMMENDED policies can be overridden by users. They are meant as a
-  // default value configured by admins, that users can customize.
-  POLICY_LEVEL_RECOMMENDED,
-
-  // MANDATORY policies must be enforced and users can't circumvent them.
-  POLICY_LEVEL_MANDATORY,
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_POLICY_TYPES_H_