[css-tables] Set needsLayout on cells when table border width changes

third_party/WebKit/Source/core/layout/LayoutTableCol.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, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 47 matching lines @@
 
     // TODO(dgrogan): Is the "else" necessary for correctness or just a brittle optimization? The optimization would be:
     // if the first branch is taken then the next one can't be, so don't even check its condition.
     if (!table->selfNeedsLayout() && !table->normalChildNeedsLayout() && oldStyle->border() != style()->border()) {
         table->invalidateCollapsedBorders();
     } else if ((oldStyle->logicalWidth() != style()->logicalWidth()) || LayoutTableBoxComponent::doCellsHaveDirtyWidth(*this, *table, diff, *oldStyle)) {
         // TODO(dgrogan): Optimization opportunities:
         // (1) Only mark cells which are affected by this col, not every cell in the table.
         // (2) If only the col width changes and its border width doesn't, do the cells need to be marked as
         //     needing layout or just given dirty widths?
-        for (LayoutObject* child = table->children()->firstChild(); child; child = child->nextSibling()) {
-            if (!child->isTableSection())
-                continue;
-            LayoutTableSection* section = toLayoutTableSection(child);
-            section->markAllCellsWidthsDirtyAndOrNeedsLayout(LayoutTableSection::MarkDirtyAndNeedsLayout);
-        }
+        table->markAllCellsWidthsDirtyAndOrNeedsLayout(LayoutTable::MarkDirtyAndNeedsLayout);
     }
 }
 
 void LayoutTableCol::updateFromElement()
 {
     unsigned oldSpan = m_span;
     Node* n = node();
     if (isHTMLTableColElement(n)) {
         HTMLTableColElement& tc = toHTMLTableColElement(*n);
         m_span = tc.span();
@@ skipping 107 matching lines @@
     return style()->borderStart();
 }
 
 const BorderValue& LayoutTableCol::borderAdjoiningCellAfter(const LayoutTableCell* cell) const
 {
     ASSERT_UNUSED(cell, table()->colElementAtAbsoluteColumn(cell->absoluteColumnIndex() - 1).innermostColOrColGroup() == this);
     return style()->borderEnd();
 }
 
 } // namespace blink