Do not normalize into NFC the values of form fields

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 555 matching lines @@
         if (contentType.isEmpty()) {
             // FIXME: this should include the charset used for encoding.
             setRequestHeaderInternal("Content-Type", "application/xml");
         }
 
         // FIXME: According to XMLHttpRequest Level 2, this should use the Document.innerHTML algorithm
         // from the HTML5 specification to serialize the document.
         String body = createMarkup(document);
 
         // FIXME: This should use value of document.inputEncoding to determine the encoding to use.
-        m_requestEntityBody = FormData::create(UTF8Encoding().encode(body, WTF::EntitiesForUnencodables));
+        m_requestEntityBody = FormData::create(UTF8Encoding().normalizeAndEncode(body, WTF::EntitiesForUnencodables));
         if (m_upload)
             m_requestEntityBody->setAlwaysStream(true);
     }
 
     createRequest(ec);
 }
 
 void XMLHttpRequest::send(const String& body, ExceptionCode& ec)
 {
     if (!initSend(ec))
         return;
 
     if (!body.isNull() && m_method != "GET" && m_method != "HEAD" && m_url.protocolIsInHTTPFamily()) {
         String contentType = getRequestHeader("Content-Type");
         if (contentType.isEmpty()) {
             setRequestHeaderInternal("Content-Type", "application/xml");
         } else {
             replaceCharsetInMediaType(contentType, "UTF-8");
             m_requestHeaders.set("Content-Type", contentType);
         }
 
-        m_requestEntityBody = FormData::create(UTF8Encoding().encode(body, WTF::EntitiesForUnencodables));
+        m_requestEntityBody = FormData::create(UTF8Encoding().normalizeAndEncode(body, WTF::EntitiesForUnencodables));
         if (m_upload)
             m_requestEntityBody->setAlwaysStream(true);
     }
 
     createRequest(ec);
 }
 
 void XMLHttpRequest::send(Blob* body, ExceptionCode& ec)
 {
     if (!initSend(ec))
@@ skipping 633 matching lines @@
 {
     return &m_eventTargetData;
 }
 
 EventTargetData* XMLHttpRequest::ensureEventTargetData()
 {
     return &m_eventTargetData;
 }
 
 } // namespace WebCore