Remove all uses of the ASCIILiteral class.

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 628 matching lines @@
 void XMLHttpRequest::send(DOMFormData* body, ExceptionState& es)
 {
     if (!initSend(es))
         return;
 
     if (areMethodAndURLValidForSend()) {
         m_requestEntityBody = FormData::createMultiPart(*(static_cast<FormDataList*>(body)), body->encoding(), document());
 
         String contentType = getRequestHeader("Content-Type");
         if (contentType.isEmpty()) {
-            contentType = String(ASCIILiteral("multipart/form-data; boundary=")) + m_requestEntityBody->boundary().data();
+            contentType = String("multipart/form-data; boundary=") + m_requestEntityBody->boundary().data();
             setRequestHeaderInternal("Content-Type", contentType);
         }
     }
 
     createRequest(es);
 }
 
 void XMLHttpRequest::send(ArrayBuffer* body, ExceptionState& es)
 {
     String consoleMessage("ArrayBuffer is deprecated in XMLHttpRequest.send(). Use ArrayBufferView instead.");
@@ skipping 590 matching lines @@
 {
     return &m_eventTargetData;
 }
 
 EventTargetData* XMLHttpRequest::ensureEventTargetData()
 {
     return &m_eventTargetData;
 }
 
 } // namespace WebCore