Support indexed setter generation

Source/core/storage/Storage.cpp

 /*
  * Copyright (C) 2008 Apple 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 55 matching lines @@
     ec = 0;
     bool found = contains(name, ec);
     if (ec || !found)
         return String();
     String result = getItem(name, ec);
     if (ec)
         return String();
     return result;
 }
 
-bool Storage::anonymousNamedSetter(const AtomicString& name, const AtomicString& value, ExceptionCode& ec)
+bool Storage::anonymousNamedSetter(const AtomicString& name, const AtomicString& value, bool isValueNull, bool isValueUndefined, ExceptionCode& ec)
 {
     setItem(name, value, ec);
     return true;
 }
 
+bool Storage::anonymousIndexedSetter(unsigned index, const AtomicString& value, bool isValueNull, bool isValueUndefined, ExceptionCode& ec)
+{
+    return anonymousNamedSetter(String::number(index), value, isValueNull, isValueUndefined, ec);
 }
+
+}