Oilpan: Prepare to move ResourceLoader and ResourceLoaderSet to Oilpan heap.

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 308 matching lines @@
         ResourceRequest m_request;
         ResourceResponse m_redirectResponse;
     };
     const Vector<RedirectPair>& redirectChain() const { return m_redirectChain; }
 
     virtual bool isSafeToUnlock() const { return false; }
     virtual void destroyDecodedDataIfPossible() { }
 
     ResourceRequest m_resourceRequest;
     AtomicString m_accept;
-    RefPtr<ResourceLoader> m_loader;
+    RefPtrWillBeMember<ResourceLoader> m_loader;
     ResourceLoaderOptions m_options;
 
     ResourceResponse m_response;
     double m_responseTimestamp;
 
     RefPtr<SharedBuffer> m_data;
     Timer<Resource> m_cancelTimer;
 
 private:
     bool addClientToSet(ResourceClient*);
@@ skipping 63 matching lines @@
 const char* ResourceTypeName(Resource::Type);
 #endif
 
 #define DEFINE_RESOURCE_TYPE_CASTS(typeName) \
     DEFINE_TYPE_CASTS(typeName##Resource, Resource, resource, resource->type() == Resource::typeName, resource.type() == Resource::typeName); \
     inline typeName##Resource* to##typeName##Resource(const ResourcePtr<Resource>& ptr) { return to##typeName##Resource(ptr.get()); }
 
 }
 
 #endif