Oilpan:Allow custom handling of classes that contain weak pointers that are embedded in collections.

Source/wtf/Vector.h

 /*
  *  Copyright (C) 2005, 2006, 2007, 2008 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.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 287 matching lines @@
         {
             return Allocator::Quantizer::template quantizedSize<T>(capacity);
         }
 
         T* buffer() { return m_buffer; }
         const T* buffer() const { return m_buffer; }
         size_t capacity() const { return m_capacity; }
 
         void clearUnusedSlots(T* from, T* to)
         {
-            VectorUnusedSlotClearer<Allocator::isGarbageCollected && (VectorTraits<T>::needsDestruction || ShouldBeTraced<VectorTraits<T> >::value || VectorTraits<T>::isWeak), T>::clear(from, to);
+            VectorUnusedSlotClearer<Allocator::isGarbageCollected && (VectorTraits<T>::needsDestruction || ShouldBeTraced<VectorTraits<T> >::value), T>::clear(from, to);
         }
 
     protected:
         VectorBufferBase()
             : m_buffer(0)
             , m_capacity(0)
         {
         }
 
         VectorBufferBase(T* buffer, size_t capacity)
@@ skipping 875 matching lines @@
         }
         if (this->hasOutOfLineBuffer())
             Allocator::markNoTracing(visitor, buffer());
     }
 
 } // namespace WTF
 
 using WTF::Vector;
 
 #endif // WTF_Vector_h