Refactor the Heap into ThreadHeap to prepare for per thread heaps

third_party/WebKit/Source/wtf/HashSet.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 39 matching lines @@
 
 private:
     typedef HashTable<ValueType, ValueType, IdentityExtractor,
         HashFunctions, ValueTraits, ValueTraits, Allocator> HashTableType;
 
 public:
     typedef HashTableConstIteratorAdapter<HashTableType, ValueTraits> iterator;
     typedef HashTableConstIteratorAdapter<HashTableType, ValueTraits> const_iterator;
     typedef typename HashTableType::AddResult AddResult;
 
+    ValueType* table() const { return m_impl.table(); }

[haraken, 2016/01/07 08:06:22]

What is this change for?

+
     void swap(HashSet& ref)
     {
         m_impl.swap(ref.m_impl);
     }
 
     void swap(typename Allocator::template OtherType<HashSet>::Type other)
     {
         HashSet& ref = Allocator::getOther(other);
         m_impl.swap(ref.m_impl);
     }
@@ skipping 216 matching lines @@
 struct NeedsTracing<HashSet<T, U, V>> {
     static const bool value = false;
 };
 #endif
 
 } // namespace WTF
 
 using WTF::HashSet;
 
 #endif // WTF_HashSet_h