cros: Make sure PIN is disabled if the user is enterprise enrolled on m56.

chrome/browser/chromeos/login/quick_unlock/quick_unlock_utils.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/chromeos/login/quick_unlock/quick_unlock_utils.h"
 
 #include "base/feature_list.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
 #include "chrome/common/chrome_features.h"
@@ skipping 30 matching lines @@
       pref_service->GetList(prefs::kQuickUnlockModeWhitelist);
   base::StringValue all_value(kQuickUnlockWhitelistOptionAll);
   base::StringValue pin_value(kQuickUnlockWhitelistOptionPin);
   if (quick_unlock_whitelist->Find(all_value) ==
           quick_unlock_whitelist->end() &&
       quick_unlock_whitelist->Find(pin_value) ==
           quick_unlock_whitelist->end()) {
     return false;
   }
 
+  // PIN for enterprise is disabled in m56 as it is not fully implemented.
+  if (g_browser_process->platform_part()
+          ->browser_policy_connector_chromeos()
+          ->IsEnterpriseManaged())
+    return false;
+
   // TODO(jdufault): Disable PIN for supervised users until we allow the owner
   // to set the PIN. See crbug.com/632797.
   user_manager::User* user = user_manager::UserManager::Get()->GetActiveUser();
   if (user && user->IsSupervised())
     return false;
 
   // Enable quick unlock only if the switch is present.
   return base::FeatureList::IsEnabled(features::kQuickUnlockPin);
 }
 
 void EnableQuickUnlockForTesting() {
   enable_for_testing_ = true;
 }
 
 }  // namespace chromeos