Fix ASSERTS in worker code in OSX....

third_party/WebKit/WebCore/bindings/v8/V8DOMMap.h

 /*
  * Copyright (C) 2009 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 35 matching lines @@
 
     // A map from DOM node to its JS wrapper.
     DOMWrapperMap<Node>& getDOMNodeMap();
 
     // A map from a DOM object (non-node) to its JS wrapper. This map does not contain the DOM objects which can have pending activity (active dom objects).
     DOMWrapperMap<void>& getDOMObjectMap();
 
     // A map from a DOM object to its JS wrapper for DOM objects which can have pending activity.
     DOMWrapperMap<void>& getActiveDOMObjectMap();
 
+    // This should be called to remove all DOM objects associated with the current thread when it is tearing down.
+    void removeAllDOMObjectsInCurrentThread();
+
 #if ENABLE(SVG)
     // A map for SVGElementInstances to its JS wrapper.
     DOMWrapperMap<SVGElementInstance>& getDOMSVGElementInstanceMap();
 
     // Map of SVG objects with contexts to V8 objects.
     DOMWrapperMap<void>& getDOMSVGObjectWithContextMap();
 #endif
 } // namespace WebCore
 
 #endif // V8DOMMap_h