Revert the merge. Mac build is mysteriously broken.

third_party/WebKit/WebCore/html/HTMLTokenizer.cpp

 /*
     Copyright (C) 1997 Martin Jones (mjones@kde.org)
               (C) 1997 Torben Weis (weis@kde.org)
               (C) 1998 Waldo Bastian (bastian@kde.org)
               (C) 1999 Lars Knoll (knoll@kde.org)
               (C) 1999 Antti Koivisto (koivisto@kde.org)
               (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
     Copyright (C) 2005, 2006 Alexey Proskuryakov (ap@nypop.com)
 
@@ skipping 1962 matching lines @@
         cs->removeClient(this);
 
         RefPtr<Node> n = m_scriptNode.release();
 
 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
         if (!m_doc->ownerElement())
             printf("external script beginning execution at %d\n", m_doc->elapsedTime());
 #endif
 
         if (errorOccurred)
-            n->dispatchEventForType(eventNames().errorEvent, true, false);
+            EventTargetNodeCast(n.get())->dispatchEventForType(eventNames().errorEvent, true, false);
         else {
             if (static_cast<HTMLScriptElement*>(n.get())->shouldExecuteAsJavaScript())
                 m_state = scriptExecution(sourceCode, m_state);
-            n->dispatchEventForType(eventNames().loadEvent, false, false);
+            EventTargetNodeCast(n.get())->dispatchEventForType(eventNames().loadEvent, false, false);
         }
 
         // The state of m_pendingScripts.isEmpty() can change inside the scriptExecution()
         // call above, so test afterwards.
         finished = m_pendingScripts.isEmpty();
         if (finished) {
             ASSERT(!m_hasScriptsWaitingForStylesheets);
             m_state.setLoadingExtScript(false);
 #ifdef INSTRUMENT_LAYOUT_SCHEDULING
             if (!m_doc->ownerElement())
@@ skipping 38 matching lines @@
 
 UChar decodeNamedEntity(const char* name)
 {
     const Entity* e = findEntity(name, strlen(name));
     return e ? e->code : 0;
 }
 
 }