Drop finalization for ElementShadows.

third_party/WebKit/Source/core/dom/shadow/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 27 matching lines @@
 
 ElementShadow* ElementShadow::create() {
   return new ElementShadow();
 }
 
 ElementShadow::ElementShadow()
     : m_elementShadowV0(this, nullptr),
       m_shadowRoot(this, nullptr),
       m_needsDistributionRecalc(false) {}
 
-ElementShadow::~ElementShadow() {}
-
 ShadowRoot& ElementShadow::youngestShadowRoot() const {
   ShadowRoot* current = m_shadowRoot;
   DCHECK(current);
   while (current->youngerShadowRoot())
     current = current->youngerShadowRoot();
   return *current;
 }
 
 ShadowRoot& ElementShadow::addShadowRoot(Element& shadowHost,
                                          ShadowRootType type) {
@@ skipping 110 matching lines @@
   visitor->trace(m_elementShadowV0);
   visitor->trace(m_shadowRoot);
 }
 
 DEFINE_TRACE_WRAPPERS(ElementShadow) {
   visitor->traceWrappers(m_elementShadowV0);
   visitor->traceWrappers(m_shadowRoot);
 }
 
 }  // namespace blink