IDL: Null values should be converted for non-nullable dictionary members

Source/bindings/tests/results/core/TestInterfaceEventInit.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file has been auto-generated by code_generator_v8.py. DO NOT MODIFY!
 
 #ifndef TestInterfaceEventInit_h
 #define TestInterfaceEventInit_h
 
 #include "core/events/EventInitDictionary.h"
 #include "platform/heap/Handle.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class TestInterfaceEventInit : public EventInitDictionary {
     ALLOW_ONLY_INLINE_ALLOCATION();
 public:
     TestInterfaceEventInit();
 
     bool hasStringMember() const { return !m_stringMember.isNull(); }
     String stringMember() const { return m_stringMember; }
     void setStringMember(String value) { m_stringMember = value; }
+    void resetStringMember() { m_stringMember = String(); }
 
     virtual void trace(Visitor*);
 
 private:
     String m_stringMember;
 
     friend class V8TestInterfaceEventInit;
 };
 
 } // namespace blink
 
 #endif // TestInterfaceEventInit_h