Removed refcounting from TextResourceDecoder

Source/core/fetch/ShaderResource.h

 /*
  * 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 26 matching lines @@
 class TextResourceDecoder;
 
 class ShaderResource : public Resource {
 public:
     ShaderResource(const ResourceRequest&);
     virtual ~ShaderResource();
 
     const String& shaderString();
 
 private:
-    RefPtr<TextResourceDecoder> m_decoder;
+    OwnPtr<TextResourceDecoder> m_decoder;
     String m_shaderString;
 };
 
 }
 
 
 #endif // ShaderResource_h