Disable HTTP authentication dialog for XHR with credentials

webkit/child/weburlloader_impl.cc

Index: webkit/child/weburlloader_impl.cc
diff --git a/webkit/child/weburlloader_impl.cc b/webkit/child/weburlloader_impl.cc
index 9ecf69a883f1aad21dbb377b364796210b96cd36..54827b6cf8cb5d1c534a78310b8f1af78d7d8a47 100644
--- a/webkit/child/weburlloader_impl.cc
+++ b/webkit/child/weburlloader_impl.cc
@@ -360,6 +360,11 @@ void WebURLLoaderImpl::Context::Start(
   if (!request.allowStoredCredentials())
     load_flags |= net::LOAD_DO_NOT_SEND_AUTH_DATA;
 
+  if (request.targetType() == WebURLRequest::TargetIsXHR &&
+      (url.has_username() || url.has_password())) {
+    load_flags |= net::LOAD_DO_NOT_PROMPT_FOR_LOGIN;
+  }
+
   HeaderFlattener flattener(load_flags);
   request.visitHTTPHeaderFields(&flattener);