Merge 178780 "When overwriting a persistent handle, actually ove..."

Source/bindings/v8/V8PersistentValueMap.h

 /*
  * Copyright (C) 2014 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 47 matching lines @@
     static Iterator End(Impl* impl) { return impl->end(); }
     static v8::PersistentContainerValue Value(Iterator& iter)
     {
         return iter->value;
     }
     static KeyType Key(Iterator& iter) { return iter->key; }
     static v8::PersistentContainerValue Set(
         Impl* impl, KeyType key, v8::PersistentContainerValue value)
     {
         v8::PersistentContainerValue oldValue = Get(impl, key);
-        impl->add(key, value);
+        impl->set(key, value);
         return oldValue;
     }
     static v8::PersistentContainerValue Get(const Impl* impl, KeyType key)
     {
         return impl->get(key);
     }
 
     static v8::PersistentContainerValue Remove(Impl* impl, KeyType key)
     {
         return impl->take(key);
@@ skipping 40 matching lines @@
 template<class KeyType, class ValueType, bool is_weak = true>
 class V8PersistentValueMap : public v8::PersistentValueMap<KeyType, ValueType, V8PersistentValueMapTraits<KeyType, ValueType, is_weak> > {
 public:
     typedef V8PersistentValueMapTraits<KeyType, ValueType, is_weak> Traits;
     explicit V8PersistentValueMap(v8::Isolate* isolate) : v8::PersistentValueMap<KeyType, ValueType, Traits>(isolate) { }
 };
 
 } // namespace WebCore
 
 #endif // V8PersistentValueMap_h