webRequest.onAuthRequired listeners can provide authentication credentials.

chrome/browser/net/chrome_network_delegate.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/net/chrome_network_delegate.h"
 
 #include "base/logging.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/extensions/extension_event_router_forwarder.h"
 #include "chrome/browser/extensions/extension_info_map.h"
@@ skipping 158 matching lines @@
   ExtensionProxyEventRouter::GetInstance()->OnPACScriptError(
       event_router_.get(), profile_, line_number, error);
 }
 
 net::NetworkDelegate::AuthRequiredResponse
 ChromeNetworkDelegate::OnAuthRequired(
     net::URLRequest* request,
     const net::AuthChallengeInfo& auth_info,
     const AuthCallback& callback,
     net::AuthCredentials* credentials) {
-  ExtensionWebRequestEventRouter::GetInstance()->OnAuthRequired(
-      profile_, extension_info_map_.get(), request, auth_info);
-  return net::NetworkDelegate::AUTH_REQUIRED_RESPONSE_NO_ACTION;
+  return ExtensionWebRequestEventRouter::GetInstance()->OnAuthRequired(
+      profile_, extension_info_map_.get(), request, auth_info,
+      callback, credentials);
 }