Make sure all destructors are called in HeapHashMap and HeapHashSet

Source/heap/Handle.h

 /*
  * Copyright (C) 2014 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 873 matching lines @@
 template<typename T>
 struct NeedsTracing<WebCore::Member<T> > {
     static const bool value = true;
 };
 
 template<typename T>
 struct IsWeak<WebCore::WeakMember<T> > {
     static const bool value = true;
 };
 
-template<typename Key, typename Value, typename Extractor, typename Traits, typename KeyTraits>
-struct IsWeak<WebCore::HeapHashTableBacking<Key, Value, Extractor, Traits, KeyTraits> > {
-    static const bool value = Traits::isWeak;
+template<typename Table>
+struct IsWeak<WebCore::HeapHashTableBacking<Table> > {
+    static const bool value = Table::ValueTraits::isWeak;
 };
 
 template<typename T> inline T* getPtr(const WebCore::Member<T>& p)
 {
     return p.get();
 }
 
 template<typename T, typename U>
 struct NeedsTracing<std::pair<T, U> > {
     static const bool value = NeedsTracing<T>::value || NeedsTracing<U>::value || IsWeak<T>::value || IsWeak<U>::value;
 };
 
 // We define specialization of the NeedsTracing trait for off heap collections
 // since we don't support tracing them.
-template<typename T>
-struct NeedsTracing<Vector<T> > {
+template<typename T, size_t N>
+struct NeedsTracing<Vector<T, N> > {
     static const bool value = false;
 };
 
 template<typename T, size_t N>
 struct NeedsTracing<Deque<T, N> > {
     static const bool value = false;
 };
 
 template<typename T>
 struct NeedsTracing<HashSet<T> > {
     static const bool value = false;
 };
 
 template<typename T>
 struct NeedsTracing<ListHashSet<T> > {
     static const bool value = false;
 };
 
 template<typename T, typename U>
 struct NeedsTracing<HashMap<T, U> > {
     static const bool value = false;
 };
 
 } // namespace WTF
 
 #endif