(WIP) Invalidation during painting (for synchronized painting)

third_party/WebKit/Source/core/layout/LayoutTable.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.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1383 matching lines @@
         return style()->borderEnd();
 
     return style()->borderStart();
 }
 
 PaintInvalidationReason LayoutTable::invalidatePaintIfNeeded(PaintInvalidationState& paintInvalidationState, const LayoutBoxModelObject& paintInvalidationContainer)
 {
     // Information of collapsed borders doesn't affect layout and are for painting only.
     // Do it now instead of during painting to invalidate table cells if needed.
     recalcCollapsedBordersIfNeeded();
-    return LayoutBlock::invalidatePaintIfNeeded(paintInvalidationState, paintInvalidationContainer);
-}
 
-void LayoutTable::invalidatePaintOfSubtreesIfNeeded(PaintInvalidationState& childPaintInvalidationState)
-{
     // Table cells paint background from the containing column group, column, section and row.
     // If background of any of them changed, we need to invalidate all affected cells.
     // Here use shouldDoFullPaintInvalidation() as a broader condition of background change.
     for (LayoutObject* section = firstChild(); section; section = section->nextSibling()) {
         if (!section->isTableSection())
             continue;
         for (LayoutTableRow* row = toLayoutTableSection(section)->firstRow(); row; row = row->nextRow()) {
             for (LayoutTableCell* cell = row->firstCell(); cell; cell = cell->nextCell()) {
                 ColAndColGroup colAndColGroup = colElement(cell->col());
                 LayoutTableCol* column = colAndColGroup.col;
                 LayoutTableCol* columnGroup = colAndColGroup.colgroup;
                 // Table cells paint container's background on the container's backing instead of its own (if any),
                 // so we must invalidate it by the containers.
                 bool invalidated = false;
                 if ((columnGroup && columnGroup->shouldDoFullPaintInvalidation())
                     || (column && column->shouldDoFullPaintInvalidation())
                     || section->shouldDoFullPaintInvalidation()) {
                     section->invalidateDisplayItemClient(*cell);
                     invalidated = true;
                 }
                 if ((!invalidated || row->isPaintInvalidationContainer()) && row->shouldDoFullPaintInvalidation())
                     row->invalidateDisplayItemClient(*cell);
             }
         }
     }
 
-    LayoutBlock::invalidatePaintOfSubtreesIfNeeded(childPaintInvalidationState);
+    return LayoutBlock::invalidatePaintIfNeeded(paintInvalidationState, paintInvalidationContainer);
 }
 
 LayoutUnit LayoutTable::paddingTop() const
 {
     if (collapseBorders())
         return LayoutUnit();
 
     return LayoutBlock::paddingTop();
 }
 
@@ skipping 15 matching lines @@
 
 LayoutUnit LayoutTable::paddingRight() const
 {
     if (collapseBorders())
         return LayoutUnit();
 
     return LayoutBlock::paddingRight();
 }
 
 } // namespace blink