Allow Chrome OS login profile to have different default pref values

chrome/browser/web_resource/notification_promo.cc

 // 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.
 
 #include "chrome/browser/web_resource/notification_promo.h"
 
 #include <cmath>
 #include <vector>
 
 #include "apps/pref_names.h"
@@ skipping 298 matching lines @@
   group_ = base::RandInt(0, num_groups_ - 1);
   WritePrefs();
 }
 
 // static
 void NotificationPromo::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterDictionaryPref(kPrefPromoObject);
 }
 
 // static
-void NotificationPromo::RegisterUserPrefs(
+void NotificationPromo::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   // TODO(dbeam): Registered only for migration. Remove in M28 when
   // we're reasonably sure all prefs are gone.
   // http://crbug.com/168887
   registry->RegisterDictionaryPref(
       kPrefPromoObject, user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 // static
 void NotificationPromo::MigrateUserPrefs(PrefService* user_prefs) {
@@ skipping 135 matching lines @@
   if (group_ < initial_segment_)
     return start_;
   return start_ +
       std::ceil(static_cast<float>(group_ - initial_segment_ + 1) / increment_)
       * time_slice_;
 }
 
 double NotificationPromo::EndTime() const {
   return end_;
 }