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

chrome/browser/prefs/pref_service_syncable_builder.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/prefs/pref_service_syncable_builder.h"
 
 #include "base/prefs/default_pref_store.h"
 #include "base/prefs/pref_notifier_impl.h"
 #include "base/prefs/pref_value_store.h"
 #include "chrome/browser/policy/configuration_policy_pref_store.h"
 #include "chrome/browser/policy/policy_service.h"
 #include "chrome/browser/prefs/command_line_pref_store.h"
-#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 
 PrefServiceSyncableBuilder::PrefServiceSyncableBuilder() {
 }
 
 PrefServiceSyncableBuilder::~PrefServiceSyncableBuilder() {
 }
 
 #if defined(ENABLE_CONFIGURATION_POLICY)
 PrefServiceSyncableBuilder& PrefServiceSyncableBuilder::WithManagedPolicies(
     policy::PolicyService* service) {
@@ skipping 29 matching lines @@
           recommended_prefs_.get(),
           pref_registry->defaults(),
           pref_notifier),
       user_prefs_.get(),
       pref_registry,
       read_error_callback_,
       async_);
   ResetDefaultState();
   return pref_service;
 }