Rename EventContext to NodeEventContext.

Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 35 matching lines @@
 
 namespace WebCore {
 
 class Attribute;
 class ClassNodeList;
 class ContainerNode;
 class DOMSettableTokenList;
 class Document;
 class Element;
 class Event;
-class EventContext;
 class EventDispatchMediator;
 class EventListener;
 class ExceptionState;
 class FloatPoint;
 class Frame;
 class HTMLInputElement;
 class IntRect;
 class KeyboardEvent;
 class NSResolver;
 class NameNodeList;
 class NamedNodeMap;
+class NodeEventContext;
 class NodeList;
 class NodeListsNodeData;
 class NodeRareData;
 class PlatformGestureEvent;
 class PlatformKeyboardEvent;
 class PlatformMouseEvent;
 class PlatformWheelEvent;
 class QualifiedName;
 class RadioNodeList;
 class RegisteredEventListener;
@@ skipping 843 matching lines @@
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::Node*);
 void showNodePath(const WebCore::Node*);
 #endif
 
 #endif