*** DO NOT LAND *** Measure the size and complexity of the old multicol implementation.

Source/core/rendering/RenderBoxModelObject.cpp

Index: Source/core/rendering/RenderBoxModelObject.cpp
diff --git a/Source/core/rendering/RenderBoxModelObject.cpp b/Source/core/rendering/RenderBoxModelObject.cpp
index 3b084c5fde5cc73a5bcbaac982dcae77e67fc05c..b0cc5d9fbe2d27607e2a0810440cb883ca4f6ffd 100644
--- a/Source/core/rendering/RenderBoxModelObject.cpp
+++ b/Source/core/rendering/RenderBoxModelObject.cpp
@@ -276,7 +276,6 @@ LayoutPoint RenderBoxModelObject::adjustedPositionRelativeToOffsetParent(const L
         return LayoutPoint();
 
     LayoutPoint referencePoint = startPoint;
-    referencePoint.move(parent()->offsetForColumns(referencePoint));
 
     // If the offsetParent of the element is null, or is the HTML body element,
     // return the distance between the canvas origin and the left border edge
@@ -303,7 +302,6 @@ LayoutPoint RenderBoxModelObject::adjustedPositionRelativeToOffsetParent(const L
                 if (!isOutOfFlowPositioned()) {
                     if (current->isBox() && !current->isTableRow())
                         referencePoint.moveBy(toRenderBox(current)->topLeftLocation());
-                    referencePoint.move(current->parent()->offsetForColumns(referencePoint));
                 }
             }
 
@@ -2754,13 +2752,6 @@ void RenderBoxModelObject::mapAbsoluteToLocalPoint(MapCoordinatesFlags mode, Tra
 
     LayoutSize containerOffset = offsetFromContainer(o, LayoutPoint());
 
-    if (!style()->hasOutOfFlowPosition() && o->hasColumns()) {
-        RenderBlock* block = toRenderBlock(o);
-        LayoutPoint point(roundedLayoutPoint(transformState.mappedPoint()));
-        point -= containerOffset;
-        block->adjustForColumnRect(containerOffset, point);
-    }
-
     bool preserve3D = mode & UseTransforms && (o->style()->preserves3D() || style()->preserves3D());
     if (mode & UseTransforms && shouldUseTransformFromContainer(o)) {
         TransformationMatrix t;