Enable PIN configuration settings.

chrome/browser/chromeos/login/quick_unlock/quick_unlock_utils.h

+// Copyright 2016 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_CHROMEOS_LOGIN_QUICK_UNLOCK_QUICK_UNLOCK_UTILS_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_QUICK_UNLOCK_UTILS_H_
+
+namespace chromeos {
+
+// Returns true if quick unlock is allowed by policy and the feature flag is
+// present.
+bool IsQuickUnlockEnabled();
+
+// Forcibly enable quick-unlock for testing.
+void EnableQuickUnlockForTesting();
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_QUICK_UNLOCK_QUICK_UNLOCK_UTILS_H_