bindings: Retires ScriptWrappable::init, etc.

Source/core/timing/PerformanceMark.h

 /*
  * Copyright (C) 2012 Intel 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 31 matching lines @@
     }
 
     virtual bool isMark() OVERRIDE { return true; }
 
     virtual void trace(Visitor* visitor) OVERRIDE
     {
         PerformanceEntry::trace(visitor);
     }
 
 private:
-    PerformanceMark(const String& name, double startTime) : PerformanceEntry(name, "mark", startTime, startTime)
-    {
-        ScriptWrappable::init(this);
-    }
+    PerformanceMark(const String& name, double startTime)
+        : PerformanceEntry(name, "mark", startTime, startTime) { }
 
     virtual ~PerformanceMark() { }
 };
 
 } // namespace blink
 
 #endif // PerformanceMark_h