Simplify CachedResource::data

Source/WebCore/loader/cache/CachedRawResource.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
@@ skipping 34 matching lines @@
     unsigned long identifier() const { return m_identifier; }
 
     void clear();
 
     virtual bool canReuse(const ResourceRequest&) const;
 
     virtual void reportMemoryUsage(MemoryObjectInfo*) const OVERRIDE;
 
 private:
     virtual void didAddClient(CachedResourceClient*);
-    virtual void data(PassRefPtr<ResourceBuffer> data, bool allDataReceived);
+    virtual void data(PassRefPtr<ResourceBuffer> data) OVERRIDE;
 
     virtual bool shouldIgnoreHTTPStatusCodeErrors() const { return true; }
     virtual void allClientsRemoved();
 
     virtual void willSendRequest(ResourceRequest&, const ResourceResponse&);
     virtual void responseReceived(const ResourceResponse&);
     virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent);
     virtual void didDownloadData(int);
 
     virtual void switchClientsToRevalidatedResource() OVERRIDE;
@@ skipping 25 matching lines @@
     virtual void dataSent(CachedResource*, unsigned long long /* bytesSent */, unsigned long long /* totalBytesToBeSent */) { }
     virtual void responseReceived(CachedResource*, const ResourceResponse&) { }
     virtual void dataReceived(CachedResource*, const char* /* data */, int /* length */) { }
     virtual void redirectReceived(CachedResource*, ResourceRequest&, const ResourceResponse&) { }
     virtual void dataDownloaded(CachedResource*, int) { }
 };
 
 }
 
 #endif // CachedRawResource_h