Move delivery of upload 'progress' events to XMLHttpRequestUpload.

Source/core/xml/XMLHttpRequestUpload.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 41 matching lines @@
     }
 
     void ref() { m_xmlHttpRequest->ref(); }
     void deref() { m_xmlHttpRequest->deref(); }
     XMLHttpRequest* xmlHttpRequest() const { return m_xmlHttpRequest; }
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
     void dispatchEventAndLoadEnd(PassRefPtr<Event>);
+    void dispatchProgressEvent(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
 
 private:
     explicit XMLHttpRequestUpload(XMLHttpRequest*);
 
     virtual void refEventTarget() OVERRIDE { ref(); }
     virtual void derefEventTarget() OVERRIDE { deref(); }
 
     XMLHttpRequest* m_xmlHttpRequest;
     EventTargetData m_eventTargetData;
+
+    // Last progress event values; used when issuing the
+    // required 'progress' event on a request error or abort.
+    unsigned long long m_lastBytesSent;
+    unsigned long long m_lastTotalBytesToBeSent;
 };
 
 } // namespace WebCore
 
 #endif // XMLHttpRequestUpload_h