DO NOT SUBMIT really old prototype of sprite recognition for image replacement

third_party/WebKit/Source/core/fetch/Resource.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, 2008, 2009, 2010, 2011 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 294 matching lines @@
     const Vector<RedirectPair>& redirectChain() const { return m_redirectChain; }
 
     virtual void destroyDecodedDataIfPossible() { }
 
     // Returns the memory dump name used for tracing. See Resource::onMemoryDump.
     String getMemoryDumpName() const;
 
     const HeapHashCountedSet<WeakMember<ResourceClient>>& clients() const { return m_clients; }
     DataBufferingPolicy dataBufferingPolicy() const { return m_options.dataBufferingPolicy; }
 
-    void setCachePolicyBypassingCache();
-    void setLoFiStateOff();
+    void setResourceRequest(const ResourceRequest&);
+
+    void clearError() { m_error = ResourceError(); }
 
     SharedBuffer* data() const { return m_data.get(); }
     void clearData() { m_data.clear(); }
 
 private:
     class ResourceCallback;
     class CachedMetadataHandlerImpl;
     class ServiceWorkerResponseCachedMetadataHandler;
 
     void cancelTimerFired(TimerBase*);
@@ skipping 72 matching lines @@
 
     Resource::Type m_type;
 };
 
 #define DEFINE_RESOURCE_TYPE_CASTS(typeName) \
     DEFINE_TYPE_CASTS(typeName##Resource, Resource, resource, resource->getType() == Resource::typeName, resource.getType() == Resource::typeName);
 
 } // namespace blink
 
 #endif