Fix prefs registration in SyncPrefs.

chrome/browser/sync/profile_sync_service.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/sync/profile_sync_service.h"
 
 #include <cstddef>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 232 matching lines @@
     return;
 
   // There was a bug where OnUserChoseDatatypes was not properly called on
   // configuration (see crbug.com/154940). We detect this by checking whether
   // kSyncKeepEverythingSynced has a default value. If so, and sync setup has
   // completed, it means sync was not properly configured, so we manually
   // set kSyncKeepEverythingSynced.
   PrefService* const pref_service = profile_->GetPrefs();
   if (!pref_service)
     return;
-  if (sync_prefs_.HasKeepEverythingSynced())
-    return;
   const syncer::ModelTypeSet registered_types = GetRegisteredDataTypes();
   if (sync_prefs_.GetPreferredDataTypes(registered_types).Size() > 1)
     return;
 
   const PrefService::Preference* keep_everything_synced =
       pref_service->FindPreference(prefs::kSyncKeepEverythingSynced);
   // This will be false if the preference was properly set or if it's controlled
   // by policy.
   if (!keep_everything_synced->IsDefaultValue())
     return;
@@ skipping 1709 matching lines @@
   // See http://stackoverflow.com/questions/6224121/is-new-this-myclass-undefined-behaviour-after-directly-calling-the-destru.
   ProfileSyncService* old_this = this;
   this->~ProfileSyncService();
   new(old_this) ProfileSyncService(
       new ProfileSyncComponentsFactoryImpl(profile,
                                            CommandLine::ForCurrentProcess()),
       profile,
       signin,
       behavior);
 }