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 411 matching lines @@
                 ->ScrollCornerAndResizerRect()
                 .IsEmpty();
   }
   bool UpdateScrollingLayers(bool scrolling_layers);
   void UpdateScrollParent(const PaintLayer*);
   void UpdateClipParent(const PaintLayer* scroll_parent);
   bool UpdateSquashingLayers(bool needs_squashing_layers);
   void UpdateDrawsContent();
   void UpdateChildrenTransform();
   void UpdateCompositedBounds();
+  void UpdateScrollBoundaryBehavior();
   void RegisterScrollingLayers();
 
   // Also sets subpixelAccumulation on the layer.
   void ComputeBoundsOfOwningLayer(
       const PaintLayer* composited_ancestor,
       IntRect& local_compositing_bounds,
       IntRect& compositing_bounds_relative_to_composited_ancestor,
       LayoutPoint& offset_from_composited_ancestor,
       IntPoint& snapped_offset_from_composited_ancestor);
 
@@ skipping 271 matching lines @@
   unsigned background_paints_onto_graphics_layer_ : 1;
 
   bool draws_background_onto_content_layer_;
 
   friend class CompositedLayerMappingTest;
 };
 
 }  // namespace blink
 
 #endif  // CompositedLayerMapping_h