Remove the concept of document.documentElement

sky/engine/core/dom/Document.h

Index: sky/engine/core/dom/Document.h
diff --git a/sky/engine/core/dom/Document.h b/sky/engine/core/dom/Document.h
index ba99a2cf2df9b7d4a8568f1819e03b875355f95d..4f951c8dc546036b22518ad6238aba4bc793839f 100644
--- a/sky/engine/core/dom/Document.h
+++ b/sky/engine/core/dom/Document.h
@@ -165,11 +165,6 @@ public:
 
     String outgoingReferrer();
 
-    Element* documentElement() const
-    {
-        return m_documentElement.get();
-    }
-
     Location* location() const;
 
     PassRefPtr<Element> createElement(const AtomicString& name, ExceptionState&);
@@ -393,9 +388,6 @@ public:
 
     DocumentMarkerController& markers() const { return *m_markers; }
 
-    bool directionSetOnDocumentElement() const { return m_directionSetOnDocumentElement; }
-    void setDirectionSetOnDocumentElement(bool b) { m_directionSetOnDocumentElement = b; }
-
     KURL openSearchDescriptionURL();
 
     Document& topDocument() const;
@@ -550,8 +542,6 @@ private:
 
     virtual bool isDocument() const override final { return true; }
 
-    virtual void childrenChanged(const ChildrenChange&) override;
-
     virtual String nodeName() const override final;
     virtual NodeType nodeType() const override final;
     virtual PassRefPtr<Node> cloneNode(bool deep = true) override final;
@@ -622,7 +612,6 @@ private:
     RefPtr<Element> m_focusedElement;
     RefPtr<Node> m_hoverNode;
     RefPtr<Element> m_activeHoverElement;
-    RefPtr<Element> m_documentElement;
     UserActionElementSet m_userActionElements;
 
     typedef HashSet<RawPtr<Range> > AttachedRangeSet;
@@ -672,8 +661,6 @@ private:
     bool m_didSetReferrerPolicy;
     ReferrerPolicy m_referrerPolicy;
 
-    bool m_directionSetOnDocumentElement;
-
     RefPtr<MediaQueryMatcher> m_mediaQueryMatcher;
 
     RefPtr<ScriptedAnimationController> m_scriptedAnimationController;
@@ -728,8 +715,6 @@ inline bool Node::isDocumentNode() const
     return this == document();
 }
 
-Node* eventTargetNodeForDocument(Document*);
-
 } // namespace blink
 
 #ifndef NDEBUG