Correct data size argument type in resource loading path to unsigned

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 142 matching lines @@
     virtual void trace(Visitor*) OVERRIDE;
 
 private:
     XMLHttpRequest(ExecutionContext*, PassRefPtr<SecurityOrigin>);
 
     Document* document() const;
     SecurityOrigin* securityOrigin() const;
 
     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;
+    virtual void didReceiveData(const char* data, unsigned 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;
 
@@ skipping 10 matching lines @@
     AtomicString finalResponseMIMEType() const;
     // The same as finalResponseMIMEType() but fallbacks to "text/xml" if
     // finalResponseMIMEType() returns an empty string.
     AtomicString finalResponseMIMETypeWithFallback() const;
     bool responseIsXML() const;
     bool responseIsHTML() const;
 
     PassOwnPtr<TextResourceDecoder> createDecoder() const;
 
     void initResponseDocument();
-    void parseDocumentChunk(const char* data, int dataLength);
+    void parseDocumentChunk(const char* data, unsigned dataLength);
 
     bool areMethodAndURLValidForSend();
 
     bool initSend(ExceptionState&);
     void sendBytesData(const void*, size_t, ExceptionState&);
 
     const AtomicString& getRequestHeader(const AtomicString& name) const;
     void setRequestHeaderInternal(const AtomicString& name, const AtomicString& value);
 
-    void trackProgress(int dataLength);
+    void trackProgress(long long dataLength);
     // Changes m_state and dispatches a readyStateChange event if new m_state
     // value is different from last one.
     void changeState(State newState);
     void dispatchReadyStateChangeEvent();
 
     // Clears variables used only while the resource is being loaded.
     void clearVariablesForLoading();
     // Returns false iff reentry happened and a new load is started.
     bool internalAbort();
     // Clears variables holding response header and body data.
@@ skipping 77 matching lines @@
     bool m_uploadComplete;
     bool m_sameOriginRequest;
     // True iff the ongoing resource loading is using the downloadToFile
     // option.
     bool m_downloadingToFile;
 };
 
 } // namespace blink
 
 #endif // XMLHttpRequest_h