Revert of Make DOMWrapperWorld::current() return a reference instead of a pointer

Source/bindings/tests/idls/TestEventTarget.idl

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
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  * modification, are permitted provided that the following conditions
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  *
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  *     notice, this list of conditions and the following disclaimer.
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  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
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  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
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  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
-#ifndef ColorChooser_h
-#define ColorChooser_h
+interface TestEventTarget : EventTarget {
+    getter Node item(unsigned long index);
+    [StrictTypeChecking] setter Node (unsigned long index, Node? node);
+    [RaisesException] deleter boolean (unsigned long index);
 
-#include "platform/PlatformExport.h"
-
-namespace WebCore {
-
-class Color;
-
-class PLATFORM_EXPORT ColorChooser {
-public:
-    virtual ~ColorChooser();
-
-    virtual void setSelectedColor(const Color&) { }
-    virtual void endChooser() { }
+    getter Node namedItem(DOMString name);
+    setter Node (DOMString name, DOMString value);
+    deleter boolean (DOMString name);
 };
-
-} // namespace WebCore
-
-#endif // ColorChooser_h