Refactor PendingScript / HTMLScriptRunner.

Source/core/dom/PendingScript.cpp

 /*
  * 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:
  * 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 17 matching lines @@
 
 #include "core/dom/Element.h"
 #include "core/fetch/ScriptResource.h"
 
 namespace blink {
 
 PendingScript::~PendingScript()
 {
 }
 
+void PendingScript::watchForLoad(ResourceClient* client)
+{
+    ASSERT(!m_watchingForLoad);
+    ASSERT(!resource()->isLoaded());
+    // addClient() will call notifyFinished() if the load is complete. Callers
+    // do not expect to be re-entered from this call, so they should not become
+    // a client of an already-loaded Resource.
+    resource()->addClient(client);
+    m_watchingForLoad = true;
+}
+
+void PendingScript::stopWatchingForLoad(ResourceClient* client)
+{
+    if (resource() && m_watchingForLoad) {
+        resource()->removeClient(client);
+        m_watchingForLoad = false;
+    }
+}
+
 PassRefPtrWillBeRawPtr<Element> PendingScript::releaseElementAndClear()
 {
     setScriptResource(0);
     m_watchingForLoad = false;
     m_startingPosition = TextPosition::belowRangePosition();
     return m_element.release();
 }
 
 void PendingScript::setScriptResource(ScriptResource* resource)
 {
     setResource(resource);
 }
 
 void PendingScript::notifyFinished(Resource*)
 {
 }
 
 void PendingScript::trace(Visitor* visitor)
 {
     visitor->trace(m_element);
 }
 
+ScriptSourceCode PendingScript::getSource(const KURL& documentURL, bool& errorOccurred) const
+{
+    if (resource()) {
+        errorOccurred = resource()->errorOccurred();
+        ASSERT(resource()->isLoaded());
+        return ScriptSourceCode(resource());
+    }
+    errorOccurred = false;
+    return ScriptSourceCode(m_element->textContent(), documentURL, startingPosition());
 }
+
+}