Implement FeatureProvider for ExtensionAPI.

chrome/browser/extensions/extension_event_router.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_event_router.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/web_request/web_request_api.h"
@@ skipping 296 matching lines @@
   // the extension process is unloaded.
   if (!extension)
     return;
 
   Profile* listener_profile = Profile::FromBrowserContext(
       listener.process->GetBrowserContext());
   extensions::ProcessMap* process_map =
       listener_profile->GetExtensionService()->process_map();
   // If the event is privileged, only send to extension processes. Otherwise,
   // it's OK to send to normal renderers (e.g., for content scripts).
-  if (ExtensionAPI::GetInstance()->IsPrivileged(event->event_name) &&
+  if (ExtensionAPI::GetSharedInstance()->IsPrivileged(event->event_name) &&
       !process_map->Contains(extension->id(), listener.process->GetID())) {
     return;
   }
 
   const std::string* event_args;
   if (!CanDispatchEventToProfile(listener_profile, extension,
                                  event, &event_args))
     return;
 
   DispatchEvent(listener.process, listener.extension_id,
@@ skipping 170 matching lines @@
       ExtensionModuleEventRouter::DispatchOnInstalledEvent(profile_, extension);
       break;
     }
 
     // TODO(tessamac): if background page crashed/failed clear queue.
     default:
       NOTREACHED();
       return;
   }
 }