[HTML Imports] Let script of imported document running.

Source/core/dom/ScriptLoader.h

 /*
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 64 matching lines @@
 private:
     ScriptLoader(Element*, bool createdByParser, bool isEvaluated);
 
     bool ignoresLoadRequest() const;
     bool isScriptForEventSupported() const;
 
     bool requestScript(const String& sourceUrl);
     void stopLoadRequest();
 
     ScriptLoaderClient* client() const;
+    Document* executingDocument() const;
 
     // ResourceClient
     virtual void notifyFinished(Resource*) OVERRIDE;
 
     Element* m_element;
     ResourcePtr<CachedScript> m_cachedScript;
     WTF::OrdinalNumber m_startLineNumber;
     bool m_parserInserted : 1;
     bool m_isExternalScript : 1;
     bool m_alreadyStarted : 1;
@@ skipping 11 matching lines @@
 
 inline PassOwnPtr<ScriptLoader> ScriptLoader::create(Element* element, bool createdByParser, bool isEvaluated)
 {
     return adoptPtr(new ScriptLoader(element, createdByParser, isEvaluated));
 }
 
 }
 
 
 #endif