Remove ServiceDiscoveryClient* from PrivetHTTPAsynchronousFactoryImpl interface

chrome/browser/local_discovery/privet_http_asynchronous_factory.cc

 // 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.
 
 #include "chrome/browser/local_discovery/privet_http_asynchronous_factory.h"
 
 #if defined(OS_MACOSX)
 #include "chrome/browser/local_discovery/privet_http_asynchronous_factory_mac.h"
 #else
 #include "chrome/browser/local_discovery/privet_http_asynchronous_factory_impl.h"
 #endif
 
 namespace local_discovery {
 
 // static
 scoped_ptr<PrivetHTTPAsynchronousFactory>
 PrivetHTTPAsynchronousFactory::CreateInstance(
-    ServiceDiscoveryClient* service_discovery_client,
     net::URLRequestContextGetter* request_context) {
 #if defined(OS_MACOSX)
   return make_scoped_ptr<PrivetHTTPAsynchronousFactory>(
       new PrivetHTTPAsynchronousFactoryMac(request_context));
 
 #else
   return make_scoped_ptr<PrivetHTTPAsynchronousFactory>(
-      new PrivetHTTPAsynchronousFactoryImpl(service_discovery_client,
-                                            request_context));
+      new PrivetHTTPAsynchronousFactoryImpl(request_context));
 #endif
 }
 
 }  // namespace local_discovery