fix a problem that android cannot download files with basic authentication

chrome/browser/android/intercept_download_resource_throttle.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/android/intercept_download_resource_throttle.h"
 
 #include "content/public/browser/android/download_controller_android.h"
 #include "content/public/browser/resource_controller.h"
 #include "net/http/http_request_headers.h"
 #include "net/url_request/url_request.h"
@@ skipping 16 matching lines @@
 
 void InterceptDownloadResourceThrottle::WillStartRequest(bool* defer) {
   ProcessDownloadRequest();
 }
 
 void InterceptDownloadResourceThrottle::WillProcessResponse(bool* defer) {
   ProcessDownloadRequest();
 }
 
 void InterceptDownloadResourceThrottle::ProcessDownloadRequest() {
-  if (request_->method() != net::HttpRequestHeaders::kGetMethod)
+  if (request_->method() != net::HttpRequestHeaders::kGetMethod ||
+      request_->response_info().did_use_http_auth)
     return;
 
   content::DownloadControllerAndroid::Get()->CreateGETDownload(
       render_process_id_, render_view_id_, request_id_);
   controller()->Cancel();
 }
 
 }  // namespace