fix a problem that android cannot download files with basic authentication

net/url_request/url_request_http_job.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 "net/url_request/url_request_http_job.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 1075 matching lines @@
       return true;
     case 401:
       if (server_auth_state_ == AUTH_STATE_CANCELED)
         return false;
       server_auth_state_ = AUTH_STATE_NEED_AUTH;
       return true;
   }
   return false;
 }
 
+bool URLRequestHttpJob::HasAuth() const {
+  return transaction_.get() ? transaction_->HasAuth() : false;
+}
+
 void URLRequestHttpJob::GetAuthChallengeInfo(
     scoped_refptr<AuthChallengeInfo>* result) {
   DCHECK(transaction_.get());
   DCHECK(response_info_);
 
   // sanity checks:
   DCHECK(proxy_auth_state_ == AUTH_STATE_NEED_AUTH ||
          server_auth_state_ == AUTH_STATE_NEED_AUTH);
   DCHECK((GetResponseHeaders()->response_code() == HTTP_UNAUTHORIZED) ||
          (GetResponseHeaders()->response_code() ==
@@ skipping 470 matching lines @@
 
 void URLRequestHttpJob::NotifyURLRequestDestroyed() {
   awaiting_callback_ = false;
 }
 
 void URLRequestHttpJob::OnDetachRequest() {
   http_transaction_delegate_->OnDetachRequest();
 }
 
 }  // namespace net