Implement CSS: scroll-boundary-behavior

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.h

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 401 matching lines @@
                 ->scrollCornerAndResizerRect()
                 .isEmpty();
   }
   bool updateScrollingLayers(bool scrollingLayers);
   void updateScrollParent(const PaintLayer*);
   void updateClipParent(const PaintLayer* scrollParent);
   bool updateSquashingLayers(bool needsSquashingLayers);
   void updateDrawsContent();
   void updateChildrenTransform();
   void updateCompositedBounds();
+  void updateScrollBoundaryBehavior();
   void registerScrollingLayers();
 
   // Also sets subpixelAccumulation on the layer.
   void computeBoundsOfOwningLayer(
       const PaintLayer* compositedAncestor,
       IntRect& localCompositingBounds,
       IntRect& compositingBoundsRelativeToCompositedAncestor,
       LayoutPoint& offsetFromCompositedAncestor,
       IntPoint& snappedOffsetFromCompositedAncestor);
 
@@ skipping 269 matching lines @@
   unsigned m_backgroundPaintsOntoGraphicsLayer : 1;
 
   bool m_drawsBackgroundOntoContentLayer;
 
   friend class CompositedLayerMappingTest;
 };
 
 }  // namespace blink
 
 #endif  // CompositedLayerMapping_h