Paint collapsed borders of a table as one display item

third_party/WebKit/Source/core/paint/PaintLayerPainter.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PaintLayerPainter_h
 #define PaintLayerPainter_h
 
 #include "core/CoreExport.h"
 #include "core/paint/PaintLayerFragment.h"
 #include "core/paint/PaintLayerPaintingInfo.h"
+#include "core/paint/PaintResult.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 class ClipRect;
 class PaintLayer;
 class GraphicsContext;
 class LayoutPoint;
 
 // This class is responsible for painting self-painting PaintLayer.
 //
 // See PainterLayer SELF-PAINTING LAYER section about what 'self-painting'
 // means and how it impacts this class.
 class CORE_EXPORT PaintLayerPainter {
   STACK_ALLOCATED();
 
  public:
   enum FragmentPolicy { AllowMultipleFragments, ForceSingleFragment };
 
-  // When adding new values, must update the number of bits of
-  // PaintLayer::m_previousPaintingResult.
-  enum PaintResult {
-    // The layer is fully painted. This includes cases that nothing needs
-    // painting regardless of the paint rect.
-    FullyPainted,
-    // Some part of the layer is out of the paint rect and may be not fully
-    // painted.  The results cannot be cached because they may change when paint
-    // rect changes.
-    MayBeClippedByPaintDirtyRect
-  };
-
   PaintLayerPainter(PaintLayer& paintLayer) : m_paintLayer(paintLayer) {}
 
   // The paint() method paints the layers that intersect the damage rect from
   // back to front.  paint() assumes that the caller will clip to the bounds of
   // damageRect if necessary.
   void paint(GraphicsContext&,
              const LayoutRect& damageRect,
              const GlobalPaintFlags = GlobalPaintNormalPhase,
              PaintLayerFlags = 0);
   // paintLayer() assumes that the caller will clip to the bounds of the
@@ skipping 86 matching lines @@
   // not via calls from CompositedLayerMapping to draw into composited layers).
   bool shouldPaintLayerInSoftwareMode(const GlobalPaintFlags,
                                       PaintLayerFlags paintFlags);
 
   PaintLayer& m_paintLayer;
 };
 
 }  // namespace blink
 
 #endif  // PaintLayerPainter_h