Schedule GC of document resources when loading data URLs

Source/core/fetch/ResourceFetcher.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
     Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
 
     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 173 matching lines @@
     void addAdditionalRequestHeaders(ResourceRequest&, Resource::Type);
 
     bool canRequest(Resource::Type, const KURL&, const ResourceLoaderOptions&, bool forPreload, FetchRequest::OriginRestriction);
     bool checkInsecureContent(Resource::Type, const KURL&, MixedContentBlockingTreatment) const;
 
     static bool resourceNeedsLoad(Resource*, const FetchRequest&, RevalidationPolicy);
 
     void notifyLoadedFromMemoryCache(Resource*);
 
     void garbageCollectDocumentResourcesTimerFired(Timer<ResourceFetcher>*);
+    void scheduleDocumentResourcesGC();
     void performPostLoadActions();
 
     bool clientDefersImage(const KURL&) const;
     void reloadImagesIfNotDeferred();
 
     HashSet<String> m_validatedURLs;
     mutable DocumentResourceMap m_documentResources;
     Document* m_document;
     DocumentLoader* m_documentLoader;
 
@@ skipping 40 matching lines @@
             m_loader->m_allowStaleResources = m_previousState;
     }
 private:
     ResourceFetcher* m_loader;
     bool m_previousState;
 };
 
 } // namespace WebCore
 
 #endif