Update chrome for new prefs location.

chrome/browser/ui/webui/app_list/start_page_handler.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_APP_LIST_START_PAGE_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_APP_LIST_START_PAGE_HANDLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/prefs/pref_change_registrar.h"
+#include "components/prefs/pref_change_registrar.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 namespace base {
 class ListValue;
 }
 
 namespace app_list {
 
 // Handler for the app launcher start page.
 class StartPageHandler : public content::WebUIMessageHandler {
@@ skipping 12 matching lines @@
   void HandleLaunchApp(const base::ListValue* args);
 
   PrefChangeRegistrar pref_change_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(StartPageHandler);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_WEBUI_APP_LIST_START_PAGE_HANDLER_H_