Support FormData on WorkerGlobalScope.

Source/core/html/DOMFormData.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #include "config.h"
 #include "core/html/DOMFormData.h"
 
 #include "core/fileapi/Blob.h"
 #include "core/html/HTMLFormElement.h"
 #include "wtf/text/TextEncoding.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
+PassRefPtrWillBeRawPtr<DOMFormData> DOMFormData::create(ExecutionContext* context, HTMLFormElement* form)
+{
+    if (context->isWorkerGlobalScope())
+        form = 0;
+
+    return adoptRefWillBeNoop(new DOMFormData(form));
+}
+
 DOMFormData::DOMFormData(const WTF::TextEncoding& encoding)
     : FormDataList(encoding)
 {
     ScriptWrappable::init(this);
 }
 
 DOMFormData::DOMFormData(HTMLFormElement* form)
     : FormDataList(UTF8Encoding())
 {
     ScriptWrappable::init(this);
@@ skipping 13 matching lines @@
         appendData(name, value);
 }
 
 void DOMFormData::append(const String& name, Blob* blob, const String& filename)
 {
     if (!name.isEmpty())
         appendBlob(name, blob, filename);
 }
 
 } // namespace WebCore