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

Source/core/rendering/TextAutosizer.cpp

Index: Source/core/rendering/TextAutosizer.cpp
diff --git a/Source/core/rendering/TextAutosizer.cpp b/Source/core/rendering/TextAutosizer.cpp
index 5d48f99deab080c110f88c5ebf993398b134cee8..9914ed7b8483459a7ed57e6fb4d650c60563b58a 100644
--- a/Source/core/rendering/TextAutosizer.cpp
+++ b/Source/core/rendering/TextAutosizer.cpp
@@ -561,14 +561,12 @@ bool TextAutosizer::isIndependentDescendant(const RenderBlock* renderer)
         || renderer->isTableCell()
         || renderer->isTableCaption()
         || renderer->isFlexibleBoxIncludingDeprecated()
-        || renderer->hasColumns()
         || (containingBlock && containingBlock->isHorizontalWritingMode() != renderer->isHorizontalWritingMode())
         || renderer->style()->isDisplayReplacedType()
         || renderer->isTextArea()
         || renderer->style()->userModify() != READ_ONLY;
     // FIXME: Tables need special handling to multiply all their columns by
-    // the same amount even if they're different widths; so do hasColumns()
-    // containers, and probably flexboxes...
+    // the same amount even if they're different widths; so do probably flexboxes...
 }
 
 bool TextAutosizer::isAutosizingCluster(const RenderBlock* renderer, TextAutosizingClusterInfo& parentClusterInfo)