Be more restrictive about forcing relayout of children for pagination.

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

 /*
  * 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, 2008, 2009, 2010, 2013
 *                Apple Inc.
  *               All rights reserved.
  *
@@ skipping 14 matching lines @@
  */
 
 #include "core/layout/LayoutTableRow.h"
 
 #include "core/HTMLNames.h"
 #include "core/fetch/ImageResource.h"
 #include "core/layout/HitTestResult.h"
 #include "core/layout/LayoutAnalyzer.h"
 #include "core/layout/LayoutState.h"
 #include "core/layout/LayoutTableCell.h"
+#include "core/layout/LayoutView.h"
 #include "core/layout/SubtreeLayoutScope.h"
 #include "core/paint/TableRowPainter.h"
 #include "core/style/StyleInheritedData.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
 LayoutTableRow::LayoutTableRow(Element* element)
     : LayoutTableBoxComponent(element), m_rowIndex(unsetRowIndex) {
@@ skipping 137 matching lines @@
     }
   }
 
   if (beforeChild || nextRow())
     section()->setNeedsCellRecalc();
 }
 
 void LayoutTableRow::layout() {
   ASSERT(needsLayout());
   LayoutAnalyzer::Scope analyzer(*this);
+  bool paginated = view()->layoutState()->isPaginated();
 
   for (LayoutTableCell* cell = firstCell(); cell; cell = cell->nextCell()) {
     SubtreeLayoutScope layouter(*cell);
     cell->setLogicalTop(logicalTop());
     if (!cell->needsLayout())
       section()->markChildForPaginationRelayoutIfNeeded(*cell, layouter);
     if (cell->needsLayout())
       cell->layout();
+    if (paginated)
+      section()->updateFragmentationInfoForChild(*cell);
   }
 
   m_overflow.reset();
   addVisualEffectOverflow();
   // We do not call addOverflowFromCell here. The cell are laid out to be
   // measured above and will be sized correctly in a follow-up phase.
 
   // We only ever need to issue paint invalidations if our cells didn't, which
   // means that they didn't need layout, so we know that our bounds didn't
   // change. This code is just making up for the fact that we did not invalidate
@@ skipping 93 matching lines @@
   // the visual overflow should be determined in the coordinate system of
   // the row, that's why we shift it below.
   LayoutUnit cellOffsetLogicalTopDifference =
       cell->location().y() - location().y();
   cellVisualOverflowRect.move(LayoutUnit(), cellOffsetLogicalTopDifference);
 
   addContentsVisualOverflow(cellVisualOverflowRect);
 }
 
 }  // namespace blink