Remove createXMLHttpRequest and other 'factory' constructors.

client/dom/idl/dart/dart.idl

 
 // This file introduces / supplements and forces Dart declarations.
 
 module default {
   NamedNodeMap implements sequence<Node>;
   NodeList implements sequence<Node>;
   HTMLCollection implements sequence<Node>;
   MediaList implements sequence<DOMString>;
   StyleSheetList implements sequence<StyleSheet>;
   TouchList implements sequence<Touch>;
@@ skipping 35 matching lines @@
     void postMessage_replacement(in SerializedScriptValue message, in DOMString targetOrigin)
       raises(DOMException);
     [DartName=postMessage, ImplementationFunction=postMessage]
     void postMessage_replacement(in SerializedScriptValue message, in MessagePort messagePort, in DOMString targetOrigin)
       raises(DOMException);
 
   };
 };
 
 module html {
-  // Define factory for XMLHttpRequest.
-  [Supplemental]
-  interface Window {
-    XMLHttpRequest createXMLHttpRequest();
-  };
-
   [Supplemental]
   interface Console {
     [Suppressed] void debug();
     void debug(DOMObject arg);
     [Suppressed] void error();
     void error(DOMObject arg);
     [Suppressed] void info();
     void info(DOMObject arg);
     [Suppressed] void log();
     void log(DOMObject arg);
@@ skipping 65 matching lines @@
   };
   [Supplemental]
   interface IDBIndex {
     [DartName=getObject] IDBRequest get(in IDBKey key);
   };
   [Supplemental]
   interface IDBObjectStore {
     [DartName=getObject] IDBRequest get(in IDBKey key);
   };
 };