Add more oilpan collections support

Source/wtf/HashMap.h

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 76 matching lines @@
 
         class HashMapKeysProxy;
         class HashMapValuesProxy;
 
     public:
         typedef HashTableIteratorAdapter<HashTableType, ValueType> iterator;
         typedef HashTableConstIteratorAdapter<HashTableType, ValueType> const_iterator;
         typedef typename HashTableType::AddResult AddResult;
 
     public:
-        void swap(HashMap& other)
+        void swap(HashMap& ref)
         {
-            m_impl.swap(other.m_impl);
+            m_impl.swap(ref.m_impl);
+        }
+
+        void swap(typename Allocator::template OtherType<HashMap>::Type other)
+        {
+            HashMap& ref = Allocator::getOther(other);
+            m_impl.swap(ref.m_impl);
         }
 
         unsigned size() const;
         unsigned capacity() const;
         bool isEmpty() const;
 
         // iterators iterate over pairs of keys and values
         iterator begin();
         iterator end();
         const_iterator begin() const;
@@ skipping 406 matching lines @@
             vector[i] = *it;
     }
 
 } // namespace WTF
 
 using WTF::HashMap;
 
 #include "wtf/RefPtrHashMap.h"
 
 #endif /* WTF_HashMap_h */