Ensure proper finalization of garbage-collected types.

Source/core/events/TouchEventContext.h

 /*
  * Copyright (C) 2014 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 20 matching lines @@
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class Event;
 class TouchList;
 
 class TouchEventContext : public RefCountedWillBeGarbageCollected<TouchEventContext> {
+    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(TouchEventContext);
 public:
     static PassRefPtrWillBeRawPtr<TouchEventContext> create();
-    ~TouchEventContext();
     void handleLocalEvents(Event*) const;
     TouchList& touches() { return *m_touches; }
     TouchList& targetTouches() { return *m_targetTouches; }
     TouchList& changedTouches() { return *m_changedTouches; }
 
     void trace(Visitor*);
 
 private:
     TouchEventContext();
 
     RefPtrWillBeMember<TouchList> m_touches;
     RefPtrWillBeMember<TouchList> m_targetTouches;
     RefPtrWillBeMember<TouchList> m_changedTouches;
 };
 
 }
 
 #endif // TouchEventContext_h