Make Event.path() return a pre-calculated NodeList rather than calculating it dynamically.

Source/core/dom/EventContext.cpp

 /*
  * Copyright (C) 2010 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 14 matching lines @@
  */
 
 #include "config.h"
 #include "core/dom/EventContext.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Event.h"
 #include "core/dom/FocusEvent.h"
 #include "core/dom/MouseEvent.h"
 #include "core/dom/Node.h"
+#include "core/dom/StaticNodeList.h"
 #include "core/dom/TouchEvent.h"
 #include "core/dom/TouchList.h"
 #include "core/page/DOMWindow.h"
 
 namespace WebCore {
 
 EventContext::EventContext(PassRefPtr<Node> node, PassRefPtr<EventTarget> currentTarget, PassRefPtr<EventTarget> target)
     : m_node(node)
     , m_currentTarget(currentTarget)
     , m_target(target)
 {
     ASSERT(m_node);
     ASSERT(!isUnreachableNode(m_target.get()));
 }
 
 EventContext::~EventContext()
 {
 }
 
+void EventContext::adoptEventPath(Vector<RefPtr<Node> >& nodes)
+{
+    m_eventPath = StaticNodeList::adopt(nodes);
+}
+
 void EventContext::handleLocalEvents(Event* event) const
 {
     event->setTarget(m_target.get());
     event->setCurrentTarget(m_currentTarget.get());
     m_node->handleLocalEvents(event);
 }
 
 bool EventContext::isMouseOrFocusEventContext() const
 {
     return false;
@@ skipping 63 matching lines @@
 
 #ifndef NDEBUG
 void TouchEventContext::checkReachability(TouchList* touchList) const
 {
     for (size_t i = 0; i < touchList->length(); ++i)
         ASSERT(touchList->item(i)->target()->toNode()->treeScope()->isInclusiveAncestorOf(m_node->treeScope()));
 }
 #endif
 
 }