Introduces a search term extraction mechanism working for arbitrary search providers.

chrome/browser/search_engines/template_url_service_factory.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/search_engines/template_url_service_factory.h"
 
 #include "chrome/browser/google/google_url_tracker_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
@@ skipping 60 matching lines @@
                             PrefService::UNSYNCABLE_PREF);
   prefs->RegisterStringPref(prefs::kDefaultSearchProviderKeyword,
                             std::string(),
                             PrefService::UNSYNCABLE_PREF);
   prefs->RegisterStringPref(prefs::kDefaultSearchProviderIconURL,
                             std::string(),
                             PrefService::UNSYNCABLE_PREF);
   prefs->RegisterStringPref(prefs::kDefaultSearchProviderEncodings,
                             std::string(),
                             PrefService::UNSYNCABLE_PREF);
+  prefs->RegisterListPref(prefs::kDefaultSearchProviderAlternateURLs,
+                          PrefService::UNSYNCABLE_PREF);
 }
 
 bool TemplateURLServiceFactory::ServiceRedirectedInIncognito() const {
   return true;
 }
 
 bool TemplateURLServiceFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }
 
 void TemplateURLServiceFactory::ProfileShutdown(Profile* profile) {
   // We shutdown AND destroy the TemplateURLService during this pass.
   // TemplateURLService schedules a task on the WebDataService from its
   // destructor. Delete it first to ensure the task gets scheduled before we
   // shut down the database.
   ProfileKeyedServiceFactory::ProfileShutdown(profile);
   ProfileKeyedServiceFactory::ProfileDestroyed(profile);
 }
 
 void TemplateURLServiceFactory::ProfileDestroyed(Profile* profile) {
   // Don't double delete.
 }