Add Streams API support to XMLHttpRequest

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.
@@ skipping 27 matching lines @@
 #include "wtf/text/StringBuilder.h"
 
 namespace WebCore {
 
 class Blob;
 class Document;
 class DOMFormData;
 class ResourceRequest;
 class SecurityOrigin;
 class SharedBuffer;
+class Stream;
 class TextResourceDecoder;
 class ThreadableLoader;
 
 class XMLHttpRequest : public ScriptWrappable, public RefCounted<XMLHttpRequest>, public EventTarget, private ThreadableLoaderClient, public ActiveDOMObject {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassRefPtr<XMLHttpRequest> create(ScriptExecutionContext*, PassRefPtr<SecurityOrigin> = 0);
     ~XMLHttpRequest();
 
     // These exact numeric values are important because JS expects them.
     enum State {
         UNSENT = 0,
         OPENED = 1,
         HEADERS_RECEIVED = 2,
         LOADING = 3,
         DONE = 4
     };
-    
+
     enum ResponseTypeCode {
         ResponseTypeDefault,
-        ResponseTypeText, 
+        ResponseTypeText,
         ResponseTypeDocument,
         ResponseTypeBlob,
-        ResponseTypeArrayBuffer
+        ResponseTypeArrayBuffer,
+        ResponseTypeStream
     };
 
     virtual void contextDestroyed();
     virtual void didTimeout();
     virtual bool canSuspend() const;
     virtual void suspend(ReasonForSuspension);
     virtual void resume();
     virtual void stop();
 
     virtual const AtomicString& interfaceName() const;
@@ skipping 19 matching lines @@
     void abort();
     void setRequestHeader(const AtomicString& name, const String& value, ExceptionCode&);
     void overrideMimeType(const String& override);
     String getAllResponseHeaders(ExceptionCode&) const;
     String getResponseHeader(const AtomicString& name, ExceptionCode&) const;
     ScriptString responseText(ExceptionCode&);
     Document* responseXML(ExceptionCode&);
     Document* optionalResponseXML() const { return m_responseDocument.get(); }
     Blob* responseBlob(ExceptionCode&);
     Blob* optionalResponseBlob() const { return m_responseBlob.get(); }
+    Stream* responseStream(ExceptionCode&);
     unsigned long timeout() const { return m_timeoutMilliseconds; }
     void setTimeout(unsigned long timeout, ExceptionCode&);
 
     void sendForInspectorXHRReplay(PassRefPtr<FormData>, ExceptionCode&);
 
     // Expose HTTP validation methods for other untrusted requests.
     static bool isAllowedHTTPMethod(const String&);
     static String uppercaseKnownHTTPMethod(const String&);
     static bool isAllowedHTTPHeader(const String&);
 
@@ skipping 71 matching lines @@
 
     KURL m_url;
     String m_method;
     HTTPHeaderMap m_requestHeaders;
     RefPtr<FormData> m_requestEntityBody;
     String m_mimeTypeOverride;
     bool m_async;
     bool m_includeCredentials;
     unsigned long m_timeoutMilliseconds;
     RefPtr<Blob> m_responseBlob;
+    RefPtr<Stream> m_responseStream;
 
     RefPtr<ThreadableLoader> m_loader;
     State m_state;
 
     ResourceResponse m_response;
     String m_responseEncoding;
 
     RefPtr<TextResourceDecoder> m_decoder;
 
     ScriptString m_responseText;
@@ skipping 24 matching lines @@
 
     // An enum corresponding to the allowed string values for the responseType attribute.
     ResponseTypeCode m_responseTypeCode;
     Timer<XMLHttpRequest> m_protectionTimer;
     RefPtr<SecurityOrigin> m_securityOrigin;
 };
 
 } // namespace WebCore
 
 #endif // XMLHttpRequest_h