Refactoring: Decouple ScriptElement from HTMLScriptElement and SVGScriptElement.

Source/core/html/HTMLScriptElement.h

Index: Source/core/html/HTMLScriptElement.h
diff --git a/Source/core/html/HTMLScriptElement.h b/Source/core/html/HTMLScriptElement.h
index 153f271dd9a9598590f0e95e4f88bb0a4035a869..1633c0dac8739403356dbd7949f2dc4497442d5b 100644
--- a/Source/core/html/HTMLScriptElement.h
+++ b/Source/core/html/HTMLScriptElement.h
@@ -29,11 +29,11 @@
 
 namespace WebCore {
 
-class HTMLScriptElement FINAL : public HTMLElement, public ScriptElement {
+class HTMLScriptElement FINAL : public HTMLElement, public ScriptElementClient {
 public:
     static PassRefPtr<HTMLScriptElement> create(const QualifiedName&, Document*, bool wasInsertedByParser, bool alreadyStarted = false);
 
-    String text() const { return scriptContent(); }
+    String text() { return textFromChildren(); }
     void setText(const String&);
 
     KURL src() const;
@@ -41,6 +41,8 @@ public:
     void setAsync(bool);
     bool async() const;
 
+    ScriptElement* scriptElement() const { return m_scriptElement.get(); }
+
 private:
     HTMLScriptElement(const QualifiedName&, Document*, bool wasInsertedByParser, bool alreadyStarted);
 
@@ -65,6 +67,8 @@ private:
     virtual void dispatchLoadEvent();
 
     virtual PassRefPtr<Element> cloneElementWithoutAttributesAndChildren();
+
+    OwnPtr<ScriptElement> m_scriptElement;
 };
 
 inline HTMLScriptElement* toHTMLScriptElement(Node* node)