[css-tables] Don't use internal layout structure when iterating all rows

third_party/WebKit/Source/core/layout/LayoutTableSection.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1209 matching lines @@
         childrenOverflowChanged |= rowChildrenOverflowChanged;
     }
     // TODO(crbug.com/604136): Add visual overflow from rows too.
     if (childrenOverflowChanged)
         computeOverflowFromCells(totalRows, numEffCols);
     return childrenOverflowChanged;
 }
 
 void LayoutTableSection::markAllCellsWidthsDirtyAndOrNeedsLayout(WhatToMarkAllCells whatToMark)
 {
-    for (unsigned i = 0; i < numRows(); i++) {
-        LayoutTableRow* row = rowLayoutObjectAt(i);
-        if (!row)
-            continue;
+    for (LayoutTableRow* row = firstRow(); row; row = row->nextRow()) {
         for (LayoutTableCell* cell = row->firstCell(); cell; cell = cell->nextCell()) {
             cell->setPreferredLogicalWidthsDirty();
             if (whatToMark == MarkDirtyAndNeedsLayout)
                 cell->setChildNeedsLayout();
         }
     }
 }
 
 int LayoutTableSection::calcBlockDirectionOuterBorder(BlockBorderSide side) const
 {
@@ skipping 484 matching lines @@
     // Repeating table headers are painted once per fragmentation page/column. This does not go through the regular fragmentation machinery,
     // so we need special code to expand the invalidation rect to contain all positions of the header in all columns.
     // Note that this is in flow thread coordinates, not visual coordinates. The enclosing LayoutFlowThread will convert to visual coordinates.
     if (table()->header() == this && hasRepeatingHeaderGroup())
         rect.setHeight(table()->logicalHeight());
     return LayoutTableBoxComponent::mapToVisualRectInAncestorSpace(ancestor, rect, flags);
 }
 
 
 } // namespace blink