Remove HTMLShadowElement.

sky/engine/core/events/EventPath.cpp

 /*
  * Copyright (C) 2013 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 91 matching lines @@
     if (!m_node->inDocument())
         return;
     while (current) {
         if (m_event && current->keepEventInNode(m_event))
             break;
         Vector<RawPtr<InsertionPoint>, 8> insertionPoints;
         collectDestinationInsertionPoints(*current, insertionPoints);
         if (!insertionPoints.isEmpty()) {
             for (size_t i = 0; i < insertionPoints.size(); ++i) {
                 InsertionPoint* insertionPoint = insertionPoints[i];
-                if (insertionPoint->isShadowInsertionPoint()) {
-                    ShadowRoot* containingShadowRoot = insertionPoint->containingShadowRoot();
-                    ASSERT(containingShadowRoot);
-                    if (!containingShadowRoot->isOldest())
-                        addNodeEventContext(containingShadowRoot->olderShadowRoot());
-                }
                 addNodeEventContext(insertionPoint);
             }
             current = insertionPoints.last();
             continue;
         }
         if (current->isShadowRoot()) {
             if (m_event && shouldStopAtShadowRoot(*m_event, *toShadowRoot(current), *m_node))
                 break;
             current = current->shadowHost();
             addNodeEventContext(current);
@@ skipping 205 matching lines @@
 
 void EventPath::trace(Visitor* visitor)
 {
     visitor->trace(m_nodeEventContexts);
     visitor->trace(m_node);
     visitor->trace(m_event);
     visitor->trace(m_treeScopeEventContexts);
 }
 
 } // namespace