[css-tables] Set table and cell widths dirty when section border changes

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

Index: third_party/WebKit/Source/core/layout/TableLayoutAlgorithmFixed.cpp
diff --git a/third_party/WebKit/Source/core/layout/TableLayoutAlgorithmFixed.cpp b/third_party/WebKit/Source/core/layout/TableLayoutAlgorithmFixed.cpp
index 9fc6eb415709866be19d84b32da0d611494ecd9c..caa76258a55733d2fc5a54b0bebd953a1ede6d11 100644
--- a/third_party/WebKit/Source/core/layout/TableLayoutAlgorithmFixed.cpp
+++ b/third_party/WebKit/Source/core/layout/TableLayoutAlgorithmFixed.cpp
@@ -326,15 +326,8 @@ void TableLayoutAlgorithmFixed::willChangeTableLayout()
     // (see calcWidthArray above.) This optimization is preferred to always
     // computing the logical widths we never intended to use.
     m_table->recalcSectionsIfNeeded();
-    for (LayoutTableSection* section = m_table->topNonEmptySection(); section; section = m_table->sectionBelow(section)) {
-        for (unsigned i = 0; i < section->numRows(); i++) {
-            LayoutTableRow* row = section->rowLayoutObjectAt(i);
-            if (!row)
-                continue;
-            for (LayoutTableCell* cell = row->firstCell(); cell; cell = cell->nextCell())
-                cell->setPreferredLogicalWidthsDirty();
-        }
-    }
+    for (LayoutTableSection* section = m_table->topNonEmptySection(); section; section = m_table->sectionBelow(section))
+        section->markAllCellsWidthsDirtyAndOrNeedsLayout(LayoutTableSection::MarkDirtyOnly);
 }
 
 } // namespace blink