Implement automatically generated constructors for frog and dartium dart:html

client/dom/src/_XMLHttpRequestUtils.dart

Index: client/dom/src/_XMLHttpRequestUtils.dart
diff --git a/client/dom/src/_XMLHttpRequestUtils.dart b/client/dom/src/_XMLHttpRequestUtils.dart
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+++ b/client/dom/src/_XMLHttpRequestUtils.dart
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+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+class _XMLHttpRequestUtils {
+
+  // Helper for factory XMLHttpRequest.getTEMPNAME
+  static XMLHttpRequest getTEMPNAME(String url,
+                                    onSuccess(XMLHttpRequest request)) {
+    final request = new XMLHttpRequest();
+    request.open('GET', url, true);
+
+    // TODO(terry): Validate after client login added if necessary to forward
+    //              cookies to server.
+    request.withCredentials = true;
+
+    // Status 0 is for local XHR request.
+    request.on.readyStateChange.add((e) {
+      if (request.readyState == XMLHttpRequest.DONE &&
+          (request.status == 200 || request.status == 0)) {
+        onSuccess(request);
+      }
+    });
+
+    request.send();
+
+    return request;
+  }
+}