Paint backgrounds of a table section/row in one display item

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

Index: third_party/WebKit/Source/core/layout/LayoutTableCell.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutTableCell.h b/third_party/WebKit/Source/core/layout/LayoutTableCell.h
index e1d9e970e49c2a94e7acba2a0c5f789209a7d60f..a663ba824cd74b00b6e950b757c1fb6aadf81ffc 100644
--- a/third_party/WebKit/Source/core/layout/LayoutTableCell.h
+++ b/third_party/WebKit/Source/core/layout/LayoutTableCell.h
@@ -320,29 +320,10 @@ class CORE_EXPORT LayoutTableCell final : public LayoutBlockFlow {
     CollapsedBorderValue m_afterBorder;
   };
 
-  class RowBackgroundDisplayItemClient : public DisplayItemClient {
-   public:
-    RowBackgroundDisplayItemClient(const LayoutTableCell&);
-
-    // DisplayItemClient methods.
-    String debugName() const;
-    LayoutRect visualRect() const;
-
-   private:
-    const LayoutTableCell& m_layoutTableCell;
-  };
-
   bool usesCompositedCellDisplayItemClients() const;
   const CollapsedBorderValues* collapsedBorderValues() const {
     return m_collapsedBorderValues.get();
   }
-  const DisplayItemClient& backgroundDisplayItemClient() const {
-    return (m_rowBackgroundDisplayItemClient &&
-            usesCompositedCellDisplayItemClients())
-               ? static_cast<const DisplayItemClient&>(
-                     *m_rowBackgroundDisplayItemClient)
-               : *this;
-  }
 
   LayoutRect debugRect() const override;
 
@@ -351,8 +332,6 @@ class CORE_EXPORT LayoutTableCell final : public LayoutBlockFlow {
   // A table cell's location is relative to its containing section.
   LayoutBox* locationContainer() const override { return section(); }
 
-  void ensureIsReadyForPaintInvalidation() override;
-
   bool hasLineIfEmpty() const override;
 
  protected:
@@ -454,8 +433,6 @@ class CORE_EXPORT LayoutTableCell final : public LayoutBlockFlow {
   int m_intrinsicPaddingAfter;
 
   std::unique_ptr<CollapsedBorderValues> m_collapsedBorderValues;
-  std::unique_ptr<RowBackgroundDisplayItemClient>
-      m_rowBackgroundDisplayItemClient;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutTableCell, isTableCell());