Make XHR use the background HTML parser

Source/core/xml/XMLHttpRequest.h

 /*
  *  Copyright (C) 2003, 2006, 2008 Apple Inc. All rights reserved.
  *  Copyright (C) 2005, 2006 Alexey Proskuryakov <ap@nypop.com>
  *  Copyright (C) 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
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 #ifndef XMLHttpRequest_h
 #define XMLHttpRequest_h
 
 #include "bindings/core/v8/ScriptString.h"
 #include "core/dom/ActiveDOMObject.h"
+#include "core/dom/DocumentParserClient.h"
 #include "core/events/EventListener.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "core/streams/ReadableStreamImpl.h"
 #include "core/xml/XMLHttpRequestEventTarget.h"
 #include "core/xml/XMLHttpRequestProgressEventThrottle.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/FormData.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/OwnPtr.h"
@@ skipping 14 matching lines @@
 class TextResourceDecoder;
 class ThreadableLoader;
 class UnderlyingSource;
 
 typedef int ExceptionCode;
 
 class XMLHttpRequest FINAL
     : public RefCountedWillBeGarbageCollectedFinalized<XMLHttpRequest>
     , public XMLHttpRequestEventTarget
     , private ThreadableLoaderClient
+    , public DocumentParserClient
     , public ActiveDOMObject {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_EVENT_TARGET(XMLHttpRequest);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(XMLHttpRequest);
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     static PassRefPtrWillBeRawPtr<XMLHttpRequest> create(ExecutionContext*, PassRefPtr<SecurityOrigin> = nullptr);
     virtual ~XMLHttpRequest();
 
     // These exact numeric values are important because JS expects them.
@@ skipping 88 matching lines @@
     virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
     virtual void didReceiveResponse(unsigned long identifier, const ResourceResponse&) OVERRIDE;
     virtual void didReceiveData(const char* data, int dataLength) OVERRIDE;
     // When responseType is set to "blob", didDownloadData() is called instead
     // of didReceiveData().
     virtual void didDownloadData(int dataLength) OVERRIDE;
     virtual void didFinishLoading(unsigned long identifier, double finishTime) OVERRIDE;
     virtual void didFail(const ResourceError&) OVERRIDE;
     virtual void didFailRedirectCheck() OVERRIDE;
 
+    // DocumentParserClient
+    virtual void notifyParserStopped() OVERRIDE;
+
+    void endLoading();
+
     // Returns the MIME type part of m_mimeTypeOverride if present and
     // successfully parsed, or returns one of the "Content-Type" header value
     // of the received response.
     //
     // This method is named after the term "final MIME type" defined in the
     // spec but doesn't convert the result to ASCII lowercase as specified in
     // the spec. Must be lowered later or compared using case insensitive
     // comparison functions if required.
     AtomicString finalResponseMIMEType() const;
     // The same as finalResponseMIMEType() but fallbacks to "text/xml" if
@@ skipping 58 matching lines @@
     // Not converted to ASCII lowercase. Must be lowered later or compared
     // using case insensitive comparison functions if needed.
     AtomicString m_mimeTypeOverride;
     unsigned long m_timeoutMilliseconds;
     RefPtrWillBeMember<Blob> m_responseBlob;
     RefPtrWillBeMember<Stream> m_responseLegacyStream;
     PersistentWillBeMember<ReadableStreamImpl<ReadableStreamChunkTypeTraits<ArrayBuffer> > > m_responseStream;
     PersistentWillBeMember<UnderlyingSource> m_streamSource;
 
     RefPtr<ThreadableLoader> m_loader;
+    unsigned long m_loaderIdentifier;
     State m_state;
 
     ResourceResponse m_response;
     String m_finalResponseCharset;
 
     OwnPtr<TextResourceDecoder> m_decoder;
 
     ScriptString m_responseText;
     RefPtrWillBeMember<Document> m_responseDocument;
     RefPtrWillBeMember<DocumentParser> m_responseDocumentParser;
@@ skipping 26 matching lines @@
     bool m_parsedResponse;
     bool m_error;
     bool m_uploadEventsAllowed;
     bool m_uploadComplete;
     bool m_sameOriginRequest;
 };
 
 } // namespace blink
 
 #endif // XMLHttpRequest_h