Introduce //components/user_prefs, use to eliminate c/b/prefs dependency in Autofill.

chrome/browser/password_manager/password_store_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/password_manager/password_store_factory.h"
 
 #include "base/command_line.h"
 #include "base/environment.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/password_manager/login_database.h"
 #include "chrome/browser/password_manager/password_store.h"
 #include "chrome/browser/password_manager/password_store_default.h"
-#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/webdata/web_data_service.h"
 #include "chrome/browser/webdata/web_data_service_factory.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 
 #if defined(OS_WIN)
 #include "chrome/browser/password_manager/password_store_win.h"
 #elif defined(OS_MACOSX)
 #include "chrome/browser/password_manager/password_store_mac.h"
 #include "crypto/apple_keychain.h"
 #include "crypto/mock_apple_keychain.h"
 #elif defined(OS_CHROMEOS) || defined(OS_ANDROID)
 // Don't do anything. We're going to use the default store.
 #elif defined(OS_POSIX)
@@ skipping 176 matching lines @@
 #endif
 }
 
 bool PasswordStoreFactory::ServiceRedirectedInIncognito() const {
   return true;
 }
 
 bool PasswordStoreFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }