Reland 160869 "Move innerHTML and outerHTML to Element"

Source/core/dom/Element.h

Index: Source/core/dom/Element.h
diff --git a/Source/core/dom/Element.h b/Source/core/dom/Element.h
index c35fe660494bff67f572b5d4bd17d936ac269a95..88a674b3f7d85055c941e46a2eac3825f02bc8e5 100644
--- a/Source/core/dom/Element.h
+++ b/Source/core/dom/Element.h
@@ -82,6 +82,11 @@ public:
     static PassRefPtr<Element> create(const QualifiedName&, Document*);
     virtual ~Element();
 
+    String innerHTML() const;
+    String outerHTML() const;
+    void setInnerHTML(const String&, ExceptionState&);
+    void setOuterHTML(const String&, ExceptionState&);
+
     DEFINE_ATTRIBUTE_EVENT_LISTENER(beforecopy);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(beforecut);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(beforepaste);