Enable PIN configuration settings.

chrome/browser/ui/webui/settings/chromeos/quick_unlock_handler.cc

+// 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.
+
+#include "chrome/browser/ui/webui/settings/chromeos/quick_unlock_handler.h"
+
+#include "base/command_line.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
+#include "chromeos/chromeos_switches.h"
+#include "content/public/browser/web_ui_data_source.h"
+
+namespace {
+
+static bool EnableQuickUnlockSettings() {
+  // Disable quick unlock if the machine is enterprise managed.
+  // TODO(jdufault): This should only be disabled if specified by policy.
+  if (g_browser_process->platform_part()
+          ->browser_policy_connector_chromeos()
+          ->IsEnterpriseManaged()) {
+    return false;
+  }
+
+  // Enable quick unlock only if the switch is present.
+  return base::CommandLine::ForCurrentProcess()->HasSwitch(
+      chromeos::switches::kEnableQuickUnlockPin);
+}
+
+}  // namespace
+
+namespace settings {
+
+void InitializeQuickUnlockForSettings(content::WebUIDataSource* html_source) {
+  html_source->AddBoolean("quickUnlockAllowed", EnableQuickUnlockSettings());
+}
+
+}  // namespace settings