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

chrome/browser/sync/invalidations/invalidator_storage.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/sync/invalidations/invalidator_storage.h"
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/task_runner.h"
 #include "base/values.h"
-#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/common/pref_names.h"
+#include "components/user_prefs/pref_registry_syncable.h"
 #include "sync/internal_api/public/base/model_type.h"
 
 using syncer::InvalidationStateMap;
 
 namespace browser_sync {
 
 namespace {
 
 const char kSourceKey[] = "source";
 const char kNameKey[] = "name";
@@ skipping 303 matching lines @@
     return;
   it->second.current = ack_handle;
 
   base::ListValue state_map_list;
   SerializeToList(state_map, &state_map_list);
   pref_service_->Set(prefs::kInvalidatorMaxInvalidationVersions,
                      state_map_list);
 }
 
 }  // namespace browser_sync