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

Source/core/rendering/RenderView.cpp

Index: Source/core/rendering/RenderView.cpp
diff --git a/Source/core/rendering/RenderView.cpp b/Source/core/rendering/RenderView.cpp
index 1d15878e9d682af4c0fd407a9e3f44c23492fe5d..f9792e48051282243b0b8c548406354ad9371073 100644
--- a/Source/core/rendering/RenderView.cpp
+++ b/Source/core/rendering/RenderView.cpp
@@ -29,7 +29,6 @@
 #include "core/html/HTMLIFrameElement.h"
 #include "core/frame/Frame.h"
 #include "core/page/Page.h"
-#include "core/rendering/ColumnInfo.h"
 #include "core/rendering/CompositedLayerMapping.h"
 #include "core/rendering/FlowThreadController.h"
 #include "core/rendering/GraphicsContextAnnotator.h"
@@ -104,14 +103,6 @@ void RenderView::updateLogicalWidth()
         setLogicalWidth(viewLogicalWidth());
 }
 
-LayoutUnit RenderView::availableLogicalHeight(AvailableLogicalHeightType heightType) const
-{
-    // If we have columns, then the available logical height is reduced to the column height.
-    if (hasColumns())
-        return columnInfo()->columnHeight();
-    return RenderBlock::availableLogicalHeight(heightType);
-}
-
 bool RenderView::isChildAllowed(RenderObject* child, RenderStyle*) const
 {
     return child->isBox();
@@ -397,24 +388,6 @@ bool RenderView::requiresColumns(int desiredColumnCount) const
     return RenderBlock::requiresColumns(desiredColumnCount);
 }
 
-void RenderView::calcColumnWidth()
-{
-    int columnWidth = contentLogicalWidth();
-    if (m_frameView && style()->hasInlineColumnAxis()) {
-        if (int pageLength = m_frameView->pagination().pageLength)
-            columnWidth = pageLength;
-    }
-    setDesiredColumnCountAndWidth(1, columnWidth);
-}
-
-ColumnInfo::PaginationUnit RenderView::paginationUnit() const
-{
-    if (m_frameView)
-        return m_frameView->pagination().behavesLikeColumns ? ColumnInfo::Column : ColumnInfo::Page;
-
-    return ColumnInfo::Page;
-}
-
 void RenderView::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     // If we ever require layout but receive a paint anyway, something has gone horribly wrong.
@@ -921,16 +894,7 @@ bool RenderView::rootBackgroundIsEntirelyFixed() const
 
 LayoutRect RenderView::backgroundRect(RenderBox* backgroundRenderer) const
 {
-    if (!hasColumns())
-        return unscaledDocumentRect();
-
-    ColumnInfo* columnInfo = this->columnInfo();
-    LayoutRect backgroundRect(0, 0, columnInfo->desiredColumnWidth(), columnInfo->columnHeight() * columnInfo->columnCount());
-    if (!isHorizontalWritingMode())
-        backgroundRect = backgroundRect.transposedRect();
-    backgroundRenderer->flipForWritingMode(backgroundRect);
-
-    return backgroundRect;
+    return unscaledDocumentRect();
 }
 
 IntRect RenderView::documentRect() const
@@ -961,14 +925,7 @@ int RenderView::viewWidth(ScrollableArea::IncludeScrollbarsInRect scrollbarInclu
 
 int RenderView::viewLogicalHeight(ScrollableArea::IncludeScrollbarsInRect scrollbarInclusion) const
 {
-    int height = style()->isHorizontalWritingMode() ? viewHeight(scrollbarInclusion) : viewWidth(scrollbarInclusion);
-
-    if (hasColumns() && !style()->hasInlineColumnAxis()) {
-        if (int pageLength = m_frameView->pagination().pageLength)
-            height = pageLength;
-    }
-
-    return height;
+    return style()->isHorizontalWritingMode() ? viewHeight(scrollbarInclusion) : viewWidth(scrollbarInclusion);
 }
 
 float RenderView::zoomFactor() const
@@ -989,7 +946,7 @@ bool RenderView::shouldDisableLayoutStateForSubtree(RenderObject* renderer) cons
 {
     RenderObject* o = renderer;
     while (o) {
-        if (o->hasColumns() || o->hasTransform() || o->hasReflection())
+        if (o->hasTransform() || o->hasReflection())
             return true;
         o = o->container();
     }