Paint collapsed borders of a table as one display item

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights
  * reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 127 matching lines @@
       m_has3DTransformedDescendant(false),
       m_containsDirtyOverlayScrollbars(false),
       m_needsAncestorDependentCompositingInputsUpdate(true),
       m_needsDescendantDependentCompositingInputsUpdate(true),
       m_childNeedsCompositingInputsUpdate(true),
       m_hasCompositingDescendant(false),
       m_isAllScrollingContentComposited(false),
       m_shouldIsolateCompositedDescendants(false),
       m_lostGroupedMapping(false),
       m_needsRepaint(false),
-      m_previousPaintResult(PaintLayerPainter::FullyPainted),
+      m_previousPaintResult(FullyPainted),
       m_needsPaintPhaseDescendantOutlines(false),
       m_previousPaintPhaseDescendantOutlinesWasEmpty(false),
       m_needsPaintPhaseFloat(false),
       m_previousPaintPhaseFloatWasEmpty(false),
       m_needsPaintPhaseDescendantBlockBackgrounds(false),
       m_previousPaintPhaseDescendantBlockBackgroundsWasEmpty(false),
       m_hasDescendantWithClipPath(false),
       m_hasNonIsolatedDescendantWithBlendMode(false),
       m_hasAncestorWithClipPath(false),
       m_hasRootScrollerAsDescendant(false),
@@ skipping 3064 matching lines @@
 }
 
 void showLayerTree(const blink::LayoutObject* layoutObject) {
   if (!layoutObject) {
     fprintf(stderr, "Cannot showLayerTree. Root is (nil)\n");
     return;
   }
   showLayerTree(layoutObject->enclosingLayer());
 }
 #endif