Implement document.currentScript

Source/core/dom/Document.h

Index: Source/core/dom/Document.h
diff --git a/Source/core/dom/Document.h b/Source/core/dom/Document.h
index 616d6736439ff4864437a93de5b2bb2320dfd422..826b23ddecc880ad0a889e24402247c578f02757 100644
--- a/Source/core/dom/Document.h
+++ b/Source/core/dom/Document.h
@@ -107,6 +107,7 @@ class HTMLHeadElement;
 class HTMLIFrameElement;
 class HTMLMapElement;
 class HTMLNameCollection;
+class HTMLScriptElement;
 class HitTestRequest;
 class HitTestResult;
 class IntPoint;
@@ -860,6 +861,10 @@ public:
     
     ScriptRunner* scriptRunner() { return m_scriptRunner.get(); }
 
+    HTMLScriptElement* currentScript() { return m_currentScript.get(); }
+    void setCurrentScript(PassRefPtr<HTMLScriptElement>);
+    void clearCurrentScript();
+
     void applyXSLTransform(ProcessingInstruction* pi);
     PassRefPtr<Document> transformSourceDocument() { return m_transformSourceDocument; }
     void setTransformSourceDocument(Document* doc) { m_transformSourceDocument = doc; }
@@ -1324,6 +1329,8 @@ private:
     
     OwnPtr<ScriptRunner> m_scriptRunner;
 
+    RefPtr<HTMLScriptElement> m_currentScript;
+
     OwnPtr<TransformSource> m_transformSource;
     RefPtr<Document> m_transformSourceDocument;