Make 'any'-typed attributes of events available in isolated worlds

Source/bindings/v8/ScriptWrappable.h

 /*
  * Copyright (C) 2010 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 58 matching lines @@
             m_wrapperOrTypeInfo = 0;
             return;
         }
         v8::Persistent<v8::Object> persistent(isolate, wrapper);
         configuration.configureWrapper(&persistent, isolate);
         persistent.MakeWeak(this, &makeWeakCallback);
         m_wrapperOrTypeInfo = reinterpret_cast<uintptr_t>(persistent.ClearAndLeak()) | 1;
         ASSERT(containsWrapper());
     }
 
+    v8::Local<v8::Object> newLocalWrapper(v8::Isolate* isolate) const
+    {
+        return unsafePersistent().newLocal(isolate);

[abarth-chromium, 2013/07/17 23:06:44]

This part I'm not sure about.  /me needs to learn more about Marja's work.

+    }
+
     const WrapperTypeInfo* typeInfo()
     {
         if (containsTypeInfo())
             return reinterpret_cast<const WrapperTypeInfo*>(m_wrapperOrTypeInfo);
 
         if (containsWrapper()) {
             return toWrapperTypeInfo(unsafePersistent().handle());
         }
 
         return 0;
@@ skipping 103 matching lines @@
         // FIXME: I noticed that 50%~ of minor GC cycle times can be consumed
         // inside key->deref(), which causes Node destructions. We should
         // make Node destructions incremental.
         info->derefObject(object);
     }
 };
 
 } // namespace WebCore
 
 #endif // ScriptWrappable_h