Add private system extension API to get system update status

chrome/browser/extensions/extension_function_dispatcher.cc

 // Copyright (c) 2011 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/extension_function_dispatcher.h"
 
 #include <map>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
@@ skipping 463 matching lines @@
 
   // Sockets
   RegisterFunction<extensions::SocketCreateFunction>();
   RegisterFunction<extensions::SocketDestroyFunction>();
   RegisterFunction<extensions::SocketConnectFunction>();
   RegisterFunction<extensions::SocketCloseFunction>();
   RegisterFunction<extensions::SocketWriteFunction>();
 
   // System
   RegisterFunction<extensions::GetIncognitoModeAvailabilityFunction>();
+  RegisterFunction<extensions::GetUpdateStatusFunction>();
 }
 
 void FactoryRegistry::GetAllNames(std::vector<std::string>* names) {
   for (FactoryMap::iterator iter = factories_.begin();
        iter != factories_.end(); ++iter) {
     names->push_back(iter->first);
   }
 }
 
 bool FactoryRegistry::OverrideFunction(const std::string& name,
@@ skipping 194 matching lines @@
   return function;
 }
 
 // static
 void ExtensionFunctionDispatcher::SendAccessDenied(
     IPC::Message::Sender* ipc_sender, int routing_id, int request_id) {
   ipc_sender->Send(new ExtensionMsg_Response(
       routing_id, request_id, false, std::string(),
       "Access to extension API denied."));
 }