fix a problem that android cannot download files with basic authentication

net/url_request/url_request_job.cc

Index: net/url_request/url_request_job.cc
diff --git a/net/url_request/url_request_job.cc b/net/url_request/url_request_job.cc
index 3c470a4ae7f0a88939feab514d13d279ecd06732..92eb53184c39e6b6b64edadc41d32244939ab2d4 100644
--- a/net/url_request/url_request_job.cc
+++ b/net/url_request/url_request_job.cc
@@ -156,6 +156,10 @@ bool URLRequestJob::NeedsAuth() {
   return false;
 }
 
+bool URLRequestJob::HasAuth() const {
+  return false;
+}
+
 void URLRequestJob::GetAuthChallengeInfo(
     scoped_refptr<AuthChallengeInfo>* auth_info) {
   // This will only be called if NeedsAuth() returns true, in which