Implement FeatureProvider for ExtensionAPI.

chrome/browser/extensions/extension_function_dispatcher.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/extension_function_dispatcher.h"
 
 #include <map>
 
 #include "base/json/json_string_value_serializer.h"
 #include "base/memory/ref_counted.h"
@@ skipping 233 matching lines @@
     const extensions::ProcessMap& process_map,
     void* profile,
     IPC::Message::Sender* ipc_sender,
     int routing_id) {
   if (!extension) {
     LOG(ERROR) << "Specified extension does not exist.";
     SendAccessDenied(ipc_sender, routing_id, params.request_id);
     return NULL;
   }
 
-  if (ExtensionAPI::GetInstance()->IsPrivileged(params.name) &&
+  if (ExtensionAPI::GetSharedInstance()->IsPrivileged(params.name) &&
       !process_map.Contains(extension->id(), requesting_process_id)) {
     LOG(ERROR) << "Extension API called from incorrect process "
                << requesting_process_id
                << " from URL " << params.source_url.spec();
     SendAccessDenied(ipc_sender, routing_id, params.request_id);
     return NULL;
   }
 
   if (!extension->HasAPIPermission(params.name)) {
     LOG(ERROR) << "Extension " << extension->id() << " does not have "
@@ skipping 14 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."));
 }