Remove the old multicol implementation.

Source/core/layout/LayoutView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 10 matching lines @@
 #include "config.h"
 #include "core/layout/LayoutView.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/Element.h"
 #include "core/editing/FrameSelection.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/html/HTMLIFrameElement.h"
-#include "core/layout/ColumnInfo.h"
 #include "core/layout/HitTestResult.h"
 #include "core/layout/LayoutFlowThread.h"
 #include "core/layout/LayoutGeometryMap.h"
 #include "core/layout/LayoutPart.h"
 #include "core/layout/LayoutQuote.h"
 #include "core/layout/LayoutScrollbarPart.h"
 #include "core/layout/compositing/DeprecatedPaintLayerCompositor.h"
 #include "core/page/Page.h"
 #include "core/paint/DeprecatedPaintLayer.h"
 #include "core/paint/ViewPainter.h"
@@ skipping 103 matching lines @@
 {
     computedValues.m_extent = (!shouldUsePrintingLayout() && m_frameView) ? LayoutUnit(viewLogicalHeightForBoxSizing()) : logicalHeight;
 }
 
 void LayoutView::updateLogicalWidth()
 {
     if (!shouldUsePrintingLayout() && m_frameView)
         setLogicalWidth(viewLogicalWidthForBoxSizing());
 }
 
-LayoutUnit LayoutView::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 LayoutBlockFlow::availableLogicalHeight(heightType);
-}
-
 bool LayoutView::isChildAllowed(LayoutObject* child, const ComputedStyle&) const
 {
     return child->isBox();
 }
 
 void LayoutView::layoutContent()
 {
     ASSERT(needsLayout());
 
     LayoutBlockFlow::layout();
@@ skipping 689 matching lines @@
 {
     if (Element* documentElement = document().documentElement()) {
         if (LayoutObject* rootObject = documentElement->layoutObject())
             return rootObject->layoutObjectForRootBackground();
     }
     return 0;
 }
 
 LayoutRect LayoutView::backgroundRect(LayoutBox* backgroundLayoutObject) const
 {
-    if (!hasColumns())
-        return LayoutRect(unscaledDocumentRect());
-
-    ColumnInfo* columnInfo = this->columnInfo();
-    LayoutRect backgroundRect(0, 0, columnInfo->desiredColumnWidth(), columnInfo->columnHeight() * columnInfo->columnCount());
-    if (!isHorizontalWritingMode())
-        backgroundRect = backgroundRect.transposedRect();
-    backgroundLayoutObject->flipForWritingMode(backgroundRect);
-
-    return backgroundRect;
+    return LayoutRect(unscaledDocumentRect());
 }
 
 IntRect LayoutView::documentRect() const
 {
     FloatRect overflowRect(unscaledDocumentRect());
     if (hasTransformRelatedProperty())
         overflowRect = layer()->currentTransform().mapRect(overflowRect);
     return IntRect(overflowRect);
 }
 
@@ skipping 100 matching lines @@
     return viewHeight(IncludeScrollbars) / scale;
 }
 
 void LayoutView::willBeDestroyed()
 {
     LayoutBlockFlow::willBeDestroyed();
     m_compositor.clear();
 }
 
 } // namespace blink