Remove scroll corners and resizers.

sky/engine/core/rendering/compositing/RenderLayerCompositor.h

 /*
  * Copyright (C) 2009 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 125 matching lines @@
     void frameViewDidChangeLocation(const IntPoint& contentsOffset);
     void frameViewDidChangeSize();
     void rootFixedBackgroundsChanged();
 
     bool scrollingLayerDidChange(RenderLayer*);
 
     String layerTreeAsText(LayerTreeFlags);
 
     GraphicsLayer* layerForHorizontalScrollbar() const { return m_layerForHorizontalScrollbar.get(); }
     GraphicsLayer* layerForVerticalScrollbar() const { return m_layerForVerticalScrollbar.get(); }
-    GraphicsLayer* layerForScrollCorner() const { return m_layerForScrollCorner.get(); }
 
     void resetTrackedPaintInvalidationRects();
     void setTracksPaintInvalidations(bool);
 
     virtual String debugName(const GraphicsLayer*) override;
     DocumentLifecycle& lifecycle() const;
 
     void updatePotentialCompositingReasonsFromStyle(RenderLayer*);
 
     // Whether the layer could ever be composited.
@@ skipping 31 matching lines @@
 
     Page* page() const;
 
     GraphicsLayerFactory* graphicsLayerFactory() const;
     ScrollingCoordinator* scrollingCoordinator() const;
 
     void enableCompositingModeIfNeeded();
 
     bool requiresHorizontalScrollbarLayer() const;
     bool requiresVerticalScrollbarLayer() const;
-    bool requiresScrollCornerLayer() const;
 
     RenderView& m_renderView;
     OwnPtr<GraphicsLayer> m_rootContentLayer;
     OwnPtr<GraphicsLayer> m_rootTransformLayer;
 
     CompositingReasonFinder m_compositingReasonFinder;
 
     CompositingUpdateType m_pendingUpdateType;
 
     bool m_compositing;
@@ skipping 14 matching lines @@
     // Enclosing container layer, which clips for iframe content
     OwnPtr<GraphicsLayer> m_containerLayer;
     OwnPtr<GraphicsLayer> m_scrollLayer;
 
     // Enclosing layer for overflow controls and the clipping layer
     OwnPtr<GraphicsLayer> m_overflowControlsHostLayer;
 
     // Layers for overflow controls
     OwnPtr<GraphicsLayer> m_layerForHorizontalScrollbar;
     OwnPtr<GraphicsLayer> m_layerForVerticalScrollbar;
-    OwnPtr<GraphicsLayer> m_layerForScrollCorner;
 };
 
 } // namespace blink
 
 #endif // RenderLayerCompositor_h