fix a problem that android cannot download files with basic authentication

net/url_request/url_request.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.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 689 matching lines @@
   job_->SetAuth(credentials);
 }
 
 void URLRequest::CancelAuth() {
   DCHECK(job_);
   DCHECK(job_->NeedsAuth());
 
   job_->CancelAuth();
 }
 
+bool URLRequest::HasAuth() const {
+  DCHECK(job_);
+  return job_->HasAuth();
+}
+
 void URLRequest::ContinueWithCertificate(X509Certificate* client_cert) {
   DCHECK(job_);
 
   job_->ContinueWithCertificate(client_cert);
 }
 
 void URLRequest::ContinueDespiteLastError() {
   DCHECK(job_);
 
   job_->ContinueDespiteLastError();
@@ skipping 293 matching lines @@
       new base::debug::StackTrace(NULL, 0);
   *stack_trace_copy = stack_trace;
   stack_trace_.reset(stack_trace_copy);
 }
 
 const base::debug::StackTrace* URLRequest::stack_trace() const {
   return stack_trace_.get();
 }
 
 }  // namespace net