Some refactorings to facilitate a larger change to TemplateURLService.

chrome/browser/search_engines/default_search_manager.cc

 // Copyright 2014 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/search_engines/default_search_manager.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 81 matching lines @@
 }
 
 DefaultSearchManager::~DefaultSearchManager() {
 }
 
 // static
 void DefaultSearchManager::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterDictionaryPref(
       kDefaultSearchProviderDataPrefName,
-      user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 // static
 void DefaultSearchManager::AddPrefValueToMap(base::DictionaryValue* value,
                                              PrefValueMap* pref_value_map) {
   pref_value_map->SetValue(kDefaultSearchProviderDataPrefName, value);
 }
 
 TemplateURLData* DefaultSearchManager::GetDefaultSearchEngine(
     Source* source) const {
@@ skipping 283 matching lines @@
   MergePrefsDataWithPrepopulated();
 }
 
 void DefaultSearchManager::NotifyObserver() {
   if (!change_observer_.is_null()) {
     Source source = FROM_FALLBACK;
     TemplateURLData* data = GetDefaultSearchEngine(&source);
     change_observer_.Run(data, source);
   }
 }