Simplify CachedResource::data

Source/WebCore/loader/cache/CachedShader.cpp

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. 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.
@@ skipping 41 matching lines @@
     if (m_shaderString.isNull() && m_data) {
         StringBuilder builder;
         builder.append(m_decoder->decode(m_data->data(), m_data->size()));
         builder.append(m_decoder->flush());
         m_shaderString = builder.toString();
     }
 
     return m_shaderString;
 }
 
-void CachedShader::data(PassRefPtr<ResourceBuffer> data, bool allDataReceived)
-{
-    if (allDataReceived)
-        m_data = data;
-    CachedResource::data(data, allDataReceived);
-}
-
 void CachedShader::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::CachedResourceShader);
     CachedResource::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_decoder, "decoder");
     info.addMember(m_shaderString, "shaderString");
 }
 
 } // namespace WebCore