WebFonts: reset m_loadLimitState on memory cache revalidation

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 99 matching lines @@
     const ResourceError& resourceError() const { return m_error; }
 
     void setIdentifier(unsigned long identifier) { m_identifier = identifier; }
     unsigned long identifier() const { return m_identifier; }
 
     virtual bool shouldIgnoreHTTPStatusCodeErrors() const { return false; }
 
     const ResourceRequest& resourceRequest() const { return m_resourceRequest; }
     const ResourceRequest& lastResourceRequest() const;
 
+    virtual void prepareToRevalidate() { }
     void setRevalidatingRequest(const ResourceRequest&);
 
     // This url can have a fragment, but it can match resources that differ by the fragment only.
     const KURL& url() const { return m_resourceRequest.url();}
     Type getType() const { return static_cast<Type>(m_type); }
     const ResourceLoaderOptions& options() const { return m_options; }
     ResourceLoaderOptions& mutableOptions() { return m_options; }
 
     void didChangePriority(ResourceLoadPriority, int intraPriorityValue);
     virtual ResourcePriority priorityFromObservers() { return ResourcePriority(); }
@@ skipping 234 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