Move PrefRegistrySimple to use unique_ptr<Value>

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 "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
@@ skipping 28 matching lines @@
       return base::TimeDelta::FromDays(7);
   }
   NOTREACHED();
   return base::TimeDelta();
 }
 
 void RegisterProfilePrefs(PrefRegistrySimple* registry) {
   base::ListValue quick_unlock_whitelist_default;
   quick_unlock_whitelist_default.AppendString(kQuickUnlockWhitelistOptionPin);
   registry->RegisterListPref(prefs::kQuickUnlockModeWhitelist,
-                             quick_unlock_whitelist_default.DeepCopy());
+                             quick_unlock_whitelist_default.CreateDeepCopy());
   registry->RegisterIntegerPref(
       prefs::kQuickUnlockTimeout,
       static_cast<int>(PasswordConfirmationFrequency::DAY));
 
   // Preferences related the lock screen pin unlock.
   registry->RegisterIntegerPref(prefs::kPinUnlockMinimumLength,
                                 kDefaultMinimumPinLength);
   // 0 indicates no maximum length for the pin.
   registry->RegisterIntegerPref(prefs::kPinUnlockMaximumLength, 0);
   registry->RegisterBooleanPref(prefs::kPinUnlockWeakPinsAllowed, true);
@@ skipping 34 matching lines @@
   // Enable fingerprint unlock only if the switch is present.
   return base::FeatureList::IsEnabled(features::kQuickUnlockFingerprint);
 }
 
 void EnableForTesting() {
   enable_for_testing_ = true;
 }
 
 }  // namespace quick_unlock
 }  // namespace chromeos