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

chrome/browser/autofill/autofill_manager.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/autofill/autofill_manager.h"
 
 #include <stddef.h>
 
 #include <limits>
 #include <map>
@@ skipping 22 matching lines @@
 #include "chrome/browser/autofill/autofill_metrics.h"
 #include "chrome/browser/autofill/autofill_profile.h"
 #include "chrome/browser/autofill/autofill_type.h"
 #include "chrome/browser/autofill/credit_card.h"
 #include "chrome/browser/autofill/form_structure.h"
 #include "chrome/browser/autofill/password_generator.h"
 #include "chrome/browser/autofill/personal_data_manager.h"
 #include "chrome/browser/autofill/personal_data_manager_factory.h"
 #include "chrome/browser/autofill/phone_number.h"
 #include "chrome/browser/autofill/phone_number_i18n.h"
-#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/common/autofill_messages.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/form_data.h"
 #include "chrome/common/form_data_predictions.h"
 #include "chrome/common/form_field_data.h"
 #include "chrome/common/password_form_fill_data.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "googleurl/src/gurl.h"
 #include "grit/generated_resources.h"
 #include "ipc/ipc_message_macros.h"
@@ skipping 1256 matching lines @@
   *profile_guid = IDToGUID(profile_id);
 }
 
 void AutofillManager::UpdateInitialInteractionTimestamp(
     const TimeTicks& interaction_timestamp) {
   if (initial_interaction_timestamp_.is_null() ||
       interaction_timestamp < initial_interaction_timestamp_) {
     initial_interaction_timestamp_ = interaction_timestamp;
   }
 }