Don't key client auth on HttpNetworkSession.

chrome/browser/ssl/ssl_client_auth_requestor_mock.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/ssl/ssl_client_auth_requestor_mock.h"
 
-#include "net/http/http_transaction_factory.h"
 #include "net/ssl/ssl_cert_request_info.h"
 #include "net/url_request/url_request.h"
-#include "net/url_request/url_request_context.h"
 
 SSLClientAuthRequestorMock::SSLClientAuthRequestorMock(
     net::URLRequest* request,
     const scoped_refptr<net::SSLCertRequestInfo>& cert_request_info)
-    : cert_request_info_(cert_request_info),
-      http_network_session_(request->context()
-                                ->http_transaction_factory()
-                                ->GetSession()) {
+    : cert_request_info_(cert_request_info) {
 }
 
 SSLClientAuthRequestorMock::~SSLClientAuthRequestorMock() {}