Combine and simplify LayoutTableSection::DirtiedRows() and DirtiedEffectiveColumns()

third_party/WebKit/Source/core/paint/TablePainterTest.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/PaintControllerPaintTest.h"
 #include "core/paint/PaintLayerPainter.h"
 
 // This file contains tests testing TablePainter, TableSectionPainter,
 // TableRowPainter and TableCellPainter. It's difficult to separate the tests
 // into individual files because of dependencies among the painter classes.
 
 namespace blink {
 
 using TablePainterTest = PaintControllerPaintTest;
 
 TEST_F(TablePainterTest, Background) {
   SetBodyInnerHTML(
       "<style>"
-      "  td { width: 200px; height: 200px; border: none; }"
+      "  td { width: 200px; height: 200px; padding: 0; border: none; }"
       "  tr { background-color: blue; }"
-      "  table { border: none; border-spacing: 0; border-collapse: collapse; }"
+      "  table { border: none; border-spacing: 0 }"
       "</style>"
       "<table>"
       "  <tr id='row1'><td></td></tr>"
       "  <tr id='row2'><td></td></tr>"
       "</table>");
 
   LayoutView& layout_view = *GetDocument().GetLayoutView();
   LayoutObject& row1 = *GetLayoutObjectByElementId("row1");
   LayoutObject& row2 = *GetLayoutObjectByElementId("row2");
 
@@ skipping 153 matching lines @@
   EXPECT_DISPLAY_LIST(
       RootPaintController().GetDisplayItemList(), 4,
       TestDisplayItem(layout_view, DisplayItem::kDocumentBackground),
       TestDisplayItem(cell, DisplayItem::kBoxDecorationBackground),
       TestDisplayItem(cell, DisplayItem::kTableCollapsedBorderLast),
       TestDisplayItem(cell, DisplayItem::PaintPhaseToDrawingType(
                                 kPaintPhaseSelfOutlineOnly)));
 }
 
 }  // namespace blink