Untangle multicol coordinate space conversion from offsetFromContainer().

third_party/WebKit/Source/core/layout/LayoutBox.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 513 matching lines @@
     void setOverrideContainingBlockContentLogicalHeight(LayoutUnit);
     void clearContainingBlockOverrideSize();
     void clearOverrideContainingBlockContentLogicalHeight();
 
     LayoutUnit extraInlineOffset() const;
     LayoutUnit extraBlockOffset() const;
     void setExtraInlineOffset(LayoutUnit inlineOffest);
     void setExtraBlockOffset(LayoutUnit blockOffest);
     void clearExtraInlineAndBlockOffests();
 
-    LayoutSize offsetFromContainer(const LayoutObject*, const LayoutPoint&, bool* offsetDependsOnPoint = nullptr) const override;
+    LayoutSize offsetFromContainer(const LayoutObject*) const override;
 
     LayoutUnit adjustBorderBoxLogicalWidthForBoxSizing(float width) const;
     LayoutUnit adjustBorderBoxLogicalHeightForBoxSizing(float height) const;
     LayoutUnit adjustContentBoxLogicalWidthForBoxSizing(float width) const;
     LayoutUnit adjustContentBoxLogicalHeightForBoxSizing(float height) const;
 
     // ComputedMarginValues holds the actual values for margins. It ignores
     // margin collapsing as they are handled in LayoutBlockFlow.
     // The margins are stored in logical coordinates (see COORDINATE
     // SYSTEMS in LayoutBoxModel) for use during layout.
@@ skipping 597 matching lines @@
         || breakValue == BreakLeft
         || breakValue == BreakPage
         || breakValue == BreakRecto
         || breakValue == BreakRight
         || breakValue == BreakVerso;
 }
 
 } // namespace blink
 
 #endif // LayoutBox_h