[Reland] Remove PaintInfo's paintingRoot

third_party/WebKit/Source/core/frame/FrameView.h

Index: third_party/WebKit/Source/core/frame/FrameView.h
diff --git a/third_party/WebKit/Source/core/frame/FrameView.h b/third_party/WebKit/Source/core/frame/FrameView.h
index 4f269d395187bb8bc935116e7dc1d53db481d923..c9aee630e81fccb9cb4323a6d25f3a88fd69ffbd 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.h
+++ b/third_party/WebKit/Source/core/frame/FrameView.h
@@ -222,9 +222,6 @@ public:
     void setIsPainting(bool val) const { m_isPainting = val; }
     bool isPainting() const;
 
-    void setNodeToDraw(Node*);
-    Node* nodeToDraw() const { return m_nodeToDraw.get(); }
-
     Color documentBackgroundColor() const;
 
     // Run all needed lifecycle stages. After calling this method, all frames will be in the lifecycle state PaintInvalidationClean.
@@ -805,8 +802,6 @@ private:
 
     bool m_isTrackingPaintInvalidations; // Used for testing.
 
-    RefPtrWillBeMember<Node> m_nodeToDraw;
-
     // TODO(wangxianzhu): Use document cycle state for spv2 and synchronzied painting.
     mutable bool m_isPainting;