Remove preload support from the MemoryCache

sky/engine/public/web/WebCachedURLRequest.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
 class WebURLRequest;
 class WrappedResourceRequest;
 
 class WebCachedURLRequest {
 public:
     ~WebCachedURLRequest() { reset(); }
     BLINK_EXPORT void reset();
 
     BLINK_EXPORT const WebURLRequest& urlRequest() const;
     BLINK_EXPORT WebString charset() const;
-    BLINK_EXPORT bool forPreload() const;
     BLINK_EXPORT WebString initiatorName() const;
 
 #if BLINK_IMPLEMENTATION
     explicit WebCachedURLRequest(FetchRequest*);
 #endif
 
 private:
     WebCachedURLRequest(const WebCachedURLRequest&);
     WebCachedURLRequest& operator=(const WebCachedURLRequest&);
 
     FetchRequest* m_private;
     mutable WebPrivateOwnPtr<WrappedResourceRequest> m_resourceRequestWrapper;
 };
 
 } // namespace blink
 
 #endif