InternalResourcePtr: allowed only as stack allocated.

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 265 matching lines @@
 
     virtual void destroyDecodedDataForFailedRevalidation() { }
 
     // Normal resource pointers will silently switch what Resource* they reference when we
     // successfully revalidated the resource. We need a way to guarantee that the Resource
     // that received the 304 response survives long enough to switch everything over to the
     // revalidatedresource. The normal mechanisms for keeping a Resource alive externally
     // (ResourcePtrs and ResourceClients registering themselves) don't work in this case, so
     // have a separate internal protector).
     class InternalResourcePtr {
+        STACK_ALLOCATED();
     public:
         explicit InternalResourcePtr(Resource* resource)
             : m_resource(resource)
         {
             m_resource->incrementProtectorCount();
         }
 
         ~InternalResourcePtr()
         {
             m_resource->decrementProtectorCount();
             m_resource->deleteIfPossible();
         }
     private:
-        Resource* m_resource;
+        RawPtrWillBeMember<Resource> m_resource;
     };
 
     void incrementProtectorCount() { m_protectorCount++; }
     void decrementProtectorCount() { m_protectorCount--; }
 
     void setEncodedSize(size_t);
     void setDecodedSize(size_t);
     void didAccessDecodedData();
 
     void finishPendingClients();
@@ skipping 125 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