Respect break-inside:avoid on table rows

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 Apple Inc. 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 568 matching lines @@
     // Used to resolve margins in the containing block's block-flow direction.
     void computeAndSetBlockDirectionMargins(const LayoutBlock* containingBlock);
 
     LayoutUnit offsetFromLogicalTopOfFirstPage() const;
 
     // The page logical offset is the object's offset from the top of the page in the page progression
     // direction (so an x-offset in vertical text and a y-offset for horizontal text).
     LayoutUnit pageLogicalOffset() const { return m_rareData ? m_rareData->m_pageLogicalOffset : LayoutUnit(); }
     void setPageLogicalOffset(LayoutUnit);
 
+    // Specify which page or column to associate with an offset, if said offset is exactly at a page

[mstensho (USE GERRIT), 2016/03/17 14:04:03]

YES! This belongs in LayoutBox, and finally we have a use case for it. :)

+    // or column boundary.
+    enum PageBoundaryRule { AssociateWithFormerPage, AssociateWithLatterPage };
+    LayoutUnit pageLogicalHeightForOffset(LayoutUnit) const;
+    LayoutUnit pageRemainingLogicalHeightForOffset(LayoutUnit, PageBoundaryRule) const;
+
+    // Calculate the strut to insert in order fit content of size |contentLogicalHeight|.
+    // |strutToNextPage| is the strut to add to |offset| to merely get to the top of the next page
+    // or column. This is what will be returned if the content can actually fit there. Otherwise,
+    // return the distance to the next fragmentainer that can fit this piece of content.
+    LayoutUnit calculatePaginationStrutToFitContent(LayoutUnit offset, LayoutUnit strutToNextPage, LayoutUnit contentLogicalHeight) const;
+
     void positionLineBox(InlineBox*);
     void moveWithEdgeOfInlineContainerIfNecessary(bool isHorizontal);
 
     virtual InlineBox* createInlineBox();
     void dirtyLineBoxes(bool fullLayout);
 
     // For atomic inline elements, this function returns the inline box that contains us.  Enables
     // the atomic inline LayoutObject to quickly determine what line it is contained on and to easily
     // iterate over structures on the line.
     InlineBox* inlineBoxWrapper() const { return m_inlineBoxWrapper; }
@@ skipping 533 matching lines @@
         if (UNLIKELY(m_inlineBoxWrapper != nullptr))
             deleteLineBoxWrapper();
     }
 
     m_inlineBoxWrapper = boxWrapper;
 }
 
 } // namespace blink
 
 #endif // LayoutBox_h