Delete RenderLayer::updateLayerPositionsAfterDocumentScroll

Source/core/rendering/RenderLayer.h

Index: Source/core/rendering/RenderLayer.h
diff --git a/Source/core/rendering/RenderLayer.h b/Source/core/rendering/RenderLayer.h
index 4b815dbb7a59c15f642d4c7493919124d89d0a48..df2682b76efb846970472efb45250b8703ea5952 100644
--- a/Source/core/rendering/RenderLayer.h
+++ b/Source/core/rendering/RenderLayer.h
@@ -163,7 +163,6 @@ public:
 
     void updateLayerPositionsAfterLayout(const RenderLayer* rootLayer, UpdateLayerPositionsFlags);
     void updateLayerPositionsAfterOverflowScroll();
-    void updateLayerPositionsAfterDocumentScroll();
 
     // FIXME: Should updateLayerPositions be private?
     void updateLayerPositionRecursive(UpdateLayerPositionsFlags = CheckForPaintInvalidation);
@@ -514,15 +513,7 @@ private:
     // Returns true if the position changed.
     bool updateLayerPosition();
 
-    enum UpdateLayerPositionsAfterScrollFlag {
-        NoFlag = 0,
-        IsOverflowScroll = 1 << 0,
-        HasSeenViewportConstrainedAncestor = 1 << 1,
-        HasSeenAncestorWithOverflowClip = 1 << 2,
-        HasChangedAncestor = 1 << 3
-    };
-    typedef unsigned UpdateLayerPositionsAfterScrollFlags;
-    void updateLayerPositionsAfterScroll(UpdateLayerPositionsAfterScrollFlags = NoFlag);
+    void updateLayerPositionsAfterScrollRecursive();
 
     void setNextSibling(RenderLayer* next) { m_next = next; }
     void setPreviousSibling(RenderLayer* prev) { m_previous = prev; }