Update chrome for new prefs location.

chrome/browser/extensions/api/preference/preference_helpers.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/extensions/api/preference/preference_helpers.h"
 
 #include <utility>
 
 #include "base/json/json_writer.h"
-#include "base/prefs/pref_service.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/preference/preference_api.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
+#include "components/prefs/pref_service.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/common/manifest_handlers/incognito_info.h"
 #include "extensions/common/permissions/permissions_data.h"
 
 namespace extensions {
 namespace preference_helpers {
 
 namespace {
@@ skipping 106 matching lines @@
       scoped_ptr<Event> event(
           new Event(histogram_value, event_name, std::move(args_copy)));
       event->restrict_to_browser_context = restrict_to_profile;
       router->DispatchEventToExtension(extension->id(), std::move(event));
     }
   }
 }
 
 }  // namespace preference_helpers
 }  // namespace extensions