Remove most occurences of PrefRegistrySyncable::UNSYNCABLE_PREF

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 "base/bind.h"
@@ skipping 308 matching lines @@
 void NotificationPromo::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterDictionaryPref(kPrefPromoObject);
 }
 
 // static
 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);
+  registry->RegisterDictionaryPref(kPrefPromoObject);
 }
 
 // static
 void NotificationPromo::MigrateUserPrefs(PrefService* user_prefs) {
   user_prefs->ClearPref(kPrefPromoObject);
 }
 
 void NotificationPromo::WritePrefs() {
   base::DictionaryValue* ntp_promo = new base::DictionaryValue;
   ntp_promo->SetString(kPrefPromoText, promo_text_);
@@ skipping 141 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_;
 }