binding: Let indexed interceptor falls through to named interceptor.

third_party/WebKit/Source/core/dom/DOMStringMap.h

 /*
  * Copyright (C) 2010 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 45 matching lines @@
     {
         bool knownProperty = deleteItem(name);
         return knownProperty ? DeleteSuccess : DeleteUnknownProperty;
     }
     void namedPropertyEnumerator(Vector<String>& names, ExceptionState&)
     {
         getNames(names);
     }
     bool namedPropertyQuery(const AtomicString&, ExceptionState&);
 
-    String anonymousIndexedGetter(uint32_t index)
-    {
-        return item(String::number(index));
-    }
-    bool anonymousIndexedSetter(uint32_t index, const String& value, ExceptionState& exceptionState)
-    {
-        return anonymousNamedSetter(String::number(index), value, exceptionState);
-    }
-    DeleteResult anonymousIndexedDeleter(uint32_t index)
-    {
-        return anonymousNamedDeleter(AtomicString::number(index));
-    }
-
     virtual Element* element() = 0;
 
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
 protected:
     DOMStringMap() { }
 };
 
 } // namespace blink
 
 #endif // DOMStringMap_h