Move remaining non-test, non-Chrome-specific Prefs code to base/prefs/.

chrome/browser/signin/signin_manager_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/signin/signin_manager_factory.h"
 
-#include "chrome/browser/prefs/pref_registry_simple.h"
+#include "base/prefs/pref_registry_simple.h"
 #include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/token_service_factory.h"
 #include "chrome/browser/ui/global_error/global_error_service_factory.h"
 #include "chrome/common/pref_names.h"
 
 SigninManagerFactory::SigninManagerFactory()
     : ProfileKeyedServiceFactory("SigninManager",
                                  ProfileDependencyManager::GetInstance()) {
@@ skipping 38 matching lines @@
 void SigninManagerFactory::RegisterPrefs(PrefRegistrySimple* registry) {
   registry->RegisterStringPref(prefs::kGoogleServicesUsernamePattern, "");
 }
 
 ProfileKeyedService* SigninManagerFactory::BuildServiceInstanceFor(
     Profile* profile) const {
   SigninManager* service = new SigninManager();
   service->Initialize(profile);
   return service;
 }