remove memoryinstrumentation

Source/core/dom/ElementShadow.cpp

 /*
  * Copyright (C) 2012 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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 113 matching lines @@
 }
 
 void ElementShadow::removeAllEventListeners()
 {
     for (ShadowRoot* root = youngestShadowRoot(); root; root = root->olderShadowRoot()) {
         for (Node* node = root; node; node = NodeTraversal::next(node))
             node->removeAllEventListeners();
     }
 }
 
-void ElementShadow::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM);
-    info.addMember(m_shadowRoots, "shadowRoots");
-    ShadowRoot* shadowRoot = m_shadowRoots.head();
-    while (shadowRoot) {
-        info.addMember(shadowRoot, "shadowRoot");
-        shadowRoot = shadowRoot->next();
-    }
-    info.addMember(m_distributor, "distributor");
-}
-
 } // namespace