Remove encoding parameter from createMultiPartFormData() and createFormData()

Source/core/xml/XMLHttpRequest.cpp

 /*
  *  Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005-2007 Alexey Proskuryakov <ap@webkit.org>
  *  Copyright (C) 2007, 2008 Julien Chaffraix <jchaffraix@webkit.org>
  *  Copyright (C) 2008, 2011 Google Inc. All rights reserved.
  *  Copyright (C) 2012 Intel Corporation
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation; either
@@ skipping 734 matching lines @@
 void XMLHttpRequest::send(DOMFormData* body, ExceptionState& exceptionState)
 {
     WTF_LOG(Network, "XMLHttpRequest %p send() DOMFormData %p", this, body);
 
     if (!initSend(exceptionState))
         return;
 
     RefPtr<FormData> httpBody;
 
     if (areMethodAndURLValidForSend()) {
-        httpBody = body->createMultiPartFormData(body->encoding());
+        httpBody = body->createMultiPartFormData();
 
         if (getRequestHeader("Content-Type").isEmpty()) {
             AtomicString contentType = AtomicString("multipart/form-data; boundary=", AtomicString::ConstructFromLiteral) + httpBody->boundary().data();
             setRequestHeaderInternal("Content-Type", contentType);
         }
     }
 
     createRequest(httpBody.release(), exceptionState);
 }
 
@@ skipping 692 matching lines @@
 {
     visitor->trace(m_responseBlob);
     visitor->trace(m_responseStream);
     visitor->trace(m_responseDocument);
     visitor->trace(m_progressEventThrottle);
     visitor->trace(m_upload);
     XMLHttpRequestEventTarget::trace(visitor);
 }
 
 } // namespace WebCore