Make XMLHttpRequest::send(document) include charset=UTF-8

Source/core/xmlhttprequest/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 773 matching lines @@
     WTF_LOG(Network, "XMLHttpRequest %p send() Document %p", this, document);
 
     ASSERT(document);
 
     if (!initSend(exceptionState))
         return;
 
     RefPtr<FormData> httpBody;
 
     if (areMethodAndURLValidForSend()) {
-        if (getRequestHeader("Content-Type").isEmpty()) {
-            // FIXME: this should include the charset used for encoding.
-            setRequestHeaderInternal("Content-Type", "application/xml");
-        }
+        // FIXME: Per https://xhr.spec.whatwg.org/#dom-xmlhttprequest-send the
+        // Content-Type header and whether to serialize as HTML or XML should
+        // depend on |document->isHTMLDocument()|.
+        if (getRequestHeader("Content-Type").isEmpty())
+            setRequestHeaderInternal("Content-Type", "application/xml;charset=UTF-8");
 
-        // 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);
 
         httpBody = FormData::create(UTF8Encoding().encode(body, WTF::EntitiesForUnencodables));
     }
 
     createRequest(httpBody.release(), exceptionState);
 }
 
 void XMLHttpRequest::send(const String& body, ExceptionState& exceptionState)
 {
@@ skipping 981 matching lines @@
     visitor->trace(m_responseDocument);
     visitor->trace(m_responseDocumentParser);
     visitor->trace(m_progressEventThrottle);
     visitor->trace(m_upload);
     visitor->trace(m_blobLoader);
     XMLHttpRequestEventTarget::trace(visitor);
     DocumentParserClient::trace(visitor);
 }
 
 } // namespace blink