Fix spanning cell painting background from wrong row

third_party/WebKit/Source/core/paint/TableSectionPainter.h

Index: third_party/WebKit/Source/core/paint/TableSectionPainter.h
diff --git a/third_party/WebKit/Source/core/paint/TableSectionPainter.h b/third_party/WebKit/Source/core/paint/TableSectionPainter.h
index d6ff986f4b2cadcc81b66cc1cca78c3d86d76baf..c1f784d71a0a478083167d47e34a672499504039 100644
--- a/third_party/WebKit/Source/core/paint/TableSectionPainter.h
+++ b/third_party/WebKit/Source/core/paint/TableSectionPainter.h
@@ -11,7 +11,6 @@
 
 namespace blink {
 
-class CellSpan;
 class CollapsedBorderValue;
 class LayoutPoint;
 class LayoutTableCell;
@@ -39,17 +38,6 @@ class TableSectionPainter {
   void paintCell(const LayoutTableCell&, const PaintInfo&, const LayoutPoint&);
   void paintBoxShadow(const PaintInfo&, const LayoutPoint&, ShadowStyle);
 
-  // Returns the primary cell that should be painted for the grid item at (row,
-  // column) intersecting dirtiedRows and dirtiedColumns. Returns nullptr if we
-  // have painted the grid item when painting the grid item left to or above
-  // (row, column) when painting cells intersecting dirtiedRows and
-  // dirtiedColumns.
-  const LayoutTableCell* primaryCellToPaint(
-      unsigned row,
-      unsigned column,
-      const CellSpan& dirtiedRows,
-      const CellSpan& dirtiedColumns) const;
-
   enum ItemToPaint { PaintCollapsedBorders, PaintSection };
   void paintRepeatingHeaderGroup(const PaintInfo&,
                                  const LayoutPoint& paintOffset,