fix a problem that android cannot download files with basic authentication

net/url_request/url_request.cc

Index: net/url_request/url_request.cc
diff --git a/net/url_request/url_request.cc b/net/url_request/url_request.cc
index 4bde9990f5259dfae8f2ab195d50fce88f354b7b..4c32d29d98ad69d8c51bc2c7350834c3a02474d9 100644
--- a/net/url_request/url_request.cc
+++ b/net/url_request/url_request.cc
@@ -707,6 +707,11 @@ void URLRequest::CancelAuth() {
   job_->CancelAuth();
 }
 
+bool URLRequest::HasAuth() const {
+  DCHECK(job_);
+  return job_->HasAuth();
+}
+
 void URLRequest::ContinueWithCertificate(X509Certificate* client_cert) {
   DCHECK(job_);