Oilpan: A thread that is not attached to Oilpan shouldn't create a CrossThreadPersistent

Source/platform/CrossThreadCopier.h

 /*
  * Copyright (C) 2009, 2010 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 23 matching lines @@
 #include "platform/PlatformExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Assertions.h"
 #include "wtf/Forward.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RawPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/ThreadSafeRefCounted.h"
 #include "wtf/TypeTraits.h"
+#include "wtf/UnretainedPtr.h"
 
 namespace blink {
 
     class IntRect;
     class IntSize;
     class KURL;
     class ResourceError;
     class ResourceRequest;
     class ResourceResponse;
     struct CrossThreadResourceResponseData;
@@ skipping 91 matching lines @@
     };
 
     template<typename T> struct CrossThreadCopierBase<false, false, true, RawPtr<T> > {
         typedef RawPtr<T> Type;
         static Type copy(const Type& ptr)
         {
             return ptr;
         }
     };
 
+    template<typename T> struct CrossThreadCopierBase<false, false, true, UnretainedPtr<T> > {
+        typedef RawPtr<T> Type;
+        static Type copy(const Type& ptr)
+        {
+            return ptr;
+        }
+    };
+
     template<typename T> struct CrossThreadCopierBase<false, false, true, Member<T> > {
         typedef RawPtr<T> Type;
         static Type copy(const Member<T>& ptr)
         {
             return ptr;
         }
     };
 
     template<typename T> struct CrossThreadCopierBase<false, false, true, WeakMember<T> > {
         typedef RawPtr<T> Type;
         static Type copy(const WeakMember<T>& ptr)
         {
             return ptr;
         }
     };
 
     template<typename T> struct CrossThreadCopier : public CrossThreadCopierBase<WTF::IsConvertibleToInteger<T>::value,
         WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, RefPtr>::Type, ThreadSafeRefCounted>::value
             || WTF::IsSubclassOfTemplate<typename WTF::RemovePointer<T>::Type, ThreadSafeRefCounted>::value
             || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, PassRefPtr>::Type, ThreadSafeRefCounted>::value,
         WTF::IsSubclassOfTemplate<typename WTF::RemovePointer<T>::Type, GarbageCollected>::value
             || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, RawPtr>::Type, GarbageCollected>::value
+            || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, UnretainedPtr>::Type, GarbageCollected>::value
             || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, Member>::Type, GarbageCollected>::value
             || WTF::IsSubclassOfTemplate<typename WTF::RemoveTemplate<T, WeakMember>::Type, GarbageCollected>::value,
         T> {
     };
 
     template<typename T> struct AllowCrossThreadAccessWrapper {
         STACK_ALLOCATED();
     public:
         explicit AllowCrossThreadAccessWrapper(T* value) : m_value(value) { }
         T* value() const { return m_value; }
@@ skipping 40 matching lines @@
 
     template<typename T> AllowAccessLaterWrapper<T> AllowAccessLater(T* value)
     {
         return AllowAccessLaterWrapper<T>(value);
     }
 
 
 } // namespace blink
 
 #endif // CrossThreadCopier_h