Report size of the external memory to V8 in StaticNodeList

Source/core/dom/StaticNodeList.cpp

 /*
  * Copyright (C) 2007, 2010 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/dom/StaticNodeList.h"
 
 #include "core/dom/Element.h"
 
+#include <v8.h>
+
 namespace WebCore {
 
+PassRefPtr<StaticNodeList> StaticNodeList::adopt(Vector<RefPtr<Node> >& nodes)
+{
+    RefPtr<StaticNodeList> nodeList = adoptRef(new StaticNodeList);
+    nodeList->m_nodes.swap(nodes);
+    v8::V8::AdjustAmountOfExternalAllocatedMemory(nodeList->m_nodes.capacity() * sizeof(RefPtr<Node>));
+    return nodeList.release();
+}
+
+StaticNodeList::~StaticNodeList()
+{
+    v8::V8::AdjustAmountOfExternalAllocatedMemory(-static_cast<int>(m_nodes.capacity() * sizeof(RefPtr<Node>)));
+}
+
 unsigned StaticNodeList::length() const
 {
     return m_nodes.size();
 }
 
 Node* StaticNodeList::item(unsigned index) const
 {
     if (index < m_nodes.size())
         return m_nodes[index].get();
     return 0;
 }
 
 Node* StaticNodeList::namedItem(const AtomicString& elementId) const
 {
     size_t length = m_nodes.size();
     for (size_t i = 0; i < length; ++i) {
         Node* node = m_nodes[i].get();
         if (node->isElementNode() && toElement(node)->getIdAttribute() == elementId)
             return node;
     }
 
     return 0;
 }
 
 } // namespace WebCore