Inherit EventTarget interface instead of duplicating its code

Source/bindings/v8/custom/V8WebKitPointCustom.cpp

 /*
  * Copyright (C) 2007, 2008, 2009 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 39 matching lines @@
                 x = 0;
         }
         if (!args[1]->IsUndefined()) {
             y = toFloat(args[1]);
             if (std::isnan(y))
                 y = 0;
         }
     }
     RefPtr<DOMPoint> point = DOMPoint::create(x, y);
     v8::Handle<v8::Object> wrapper = args.Holder();
-    V8DOMWrapper::associateObjectWithWrapper(point.release(), &info, wrapper, args.GetIsolate(), WrapperConfiguration::Dependent);
+    V8DOMWrapper::associateObjectWithWrapper<V8WebKitPoint>(point.release(), &info, wrapper, args.GetIsolate(), WrapperConfiguration::Dependent);
     args.GetReturnValue().Set(wrapper);
 }
 
 } // namespace WebCore