Invalidate row/section for backgrounds when cell's geometry changes

third_party/WebKit/Source/core/layout/LayoutTableCell.h

 /*
  * 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, 2007, 2009, 2013 Apple Inc.
  *               All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 330 matching lines @@
 
  protected:
   void StyleDidChange(StyleDifference, const ComputedStyle* old_style) override;
   void ComputePreferredLogicalWidths() override;
 
   void AddLayerHitTestRects(LayerHitTestRects&,
                             const PaintLayer* current_composited_layer,
                             const LayoutPoint& layer_offset,
                             const LayoutRect& container_rect) const override;
 
+  PaintInvalidationReason InvalidatePaintIfNeeded(
+      const PaintInvalidatorContext&) const override;
+  PaintInvalidationReason InvalidatePaintIfNeeded(
+      const PaintInvalidationState&) override;
+
  private:
   bool IsOfType(LayoutObjectType type) const override {
     return type == kLayoutObjectTableCell || LayoutBlockFlow::IsOfType(type);
   }
 
   void WillBeRemovedFromTree() override;
 
   void UpdateLogicalWidth() override;
 
   void PaintBoxDecorationBackground(const PaintInfo&,
@@ skipping 93 matching lines @@
   return ToLayoutTableCell(FirstChild());
 }
 
 inline LayoutTableCell* LayoutTableRow::LastCell() const {
   return ToLayoutTableCell(LastChild());
 }
 
 }  // namespace blink
 
 #endif  // LayoutTableCell_h