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

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 508 matching lines @@
 
     // If the child contains inline with outline and continuation, its
     // visual overflow computed during its layout might be inaccurate because
     // the layout of continuations might not be up-to-date at that time.
     // Re-add overflow from inline children to ensure its overflow covers
     // the outline which may enclose continuations.
     if (child->isLayoutBlockFlow() &&
         toLayoutBlockFlow(child)->containsInlineWithOutlineAndContinuation())
       toLayoutBlockFlow(child)->addOverflowFromInlineChildren();
 
-    addOverflowFromChild(child);
+    addOverflowFromChild(*child);
   }
 }
 
 void LayoutBlock::addOverflowFromPositionedObjects() {
   TrackedLayoutBoxListHashSet* positionedDescendants = positionedObjects();
   if (!positionedDescendants)
     return;
 
   for (auto* positionedObject : *positionedDescendants) {
     // Fixed positioned elements don't contribute to layout overflow, since they
     // don't scroll with the content.
     if (positionedObject->style()->position() != EPosition::kFixed)
-      addOverflowFromChild(positionedObject,
+      addOverflowFromChild(*positionedObject,
                            toLayoutSize(positionedObject->location()));
   }
 }
 
 void LayoutBlock::addVisualOverflowFromTheme() {
   if (!style()->hasAppearance())
     return;
 
   IntRect inflatedRect = pixelSnappedBorderBoxRect();
   LayoutTheme::theme().addVisualOverflow(*this, inflatedRect);
@@ skipping 1621 matching lines @@
   }
 
   return availableHeight;
 }
 
 bool LayoutBlock::hasDefiniteLogicalHeight() const {
   return availableLogicalHeightForPercentageComputation() != LayoutUnit(-1);
 }
 
 }  // namespace blink