Issue paint invalidations before and after changing offsetFromRenderer and reconfiguring

Source/core/rendering/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 69 matching lines @@
 public:
     explicit CompositedLayerMapping(RenderLayer&);
     virtual ~CompositedLayerMapping();
 
     RenderLayer& owningLayer() const { return m_owningLayer; }
 
     // Returns true if layer configuration changed.
     bool updateGraphicsLayerConfiguration(GraphicsLayerUpdater::UpdateType);
     // Update graphics layer position and bounds.
 
-    void updateGraphicsLayerGeometry(GraphicsLayerUpdater::UpdateType, const RenderLayer* compositingContainer);
+    void updateGraphicsLayerGeometry(GraphicsLayerUpdater::UpdateType, const RenderLayer* compositingContainer, Vector<RenderLayer*>& layersNeedingPaintInvalidation);
 
     // Update whether layer needs blending.
     void updateContentsOpaque();
 
     GraphicsLayer* mainGraphicsLayer() const { return m_graphicsLayer.get(); }
 
     // Layer to clip children
     bool hasClippingLayer() const { return m_childContainmentLayer; }
     GraphicsLayer* clippingLayer() const { return m_childContainmentLayer.get(); }
 
@@ skipping 109 matching lines @@
     // If there is a squashed layer painting into this CLM that is an ancestor of the given RenderObject, return it. Otherwise return 0.
     const GraphicsLayerPaintInfo* containingSquashedLayer(const RenderObject*);
 
     void updateScrollingBlockSelection();
 
 private:
     static const GraphicsLayerPaintInfo* containingSquashedLayer(const RenderObject*,  const Vector<GraphicsLayerPaintInfo>& layers);
 
     // Helper methods to updateGraphicsLayerGeometry:
     void computeGraphicsLayerParentLocation(const RenderLayer* compositingContainer, const IntRect& ancestorCompositingBounds, IntPoint& graphicsLayerParentLocation);
-    void updateSquashingLayerGeometry(const LayoutPoint& offsetFromCompositedAncestor, const IntPoint& graphicsLayerParentLocation, const RenderLayer& referenceLayer, Vector<GraphicsLayerPaintInfo>& layers, GraphicsLayer*, LayoutPoint* offsetFromTransformedAncestor);
+    void updateSquashingLayerGeometry(const LayoutPoint& offsetFromCompositedAncestor, const IntPoint& graphicsLayerParentLocation, const RenderLayer& referenceLayer, Vector<GraphicsLayerPaintInfo>& layers, GraphicsLayer*, LayoutPoint* offsetFromTransformedAncestor, Vector<RenderLayer*>& layersNeedingPaintInvalidation);
     void updateMainGraphicsLayerGeometry(const IntRect& relativeCompositingBounds, const IntRect& localCompositingBounds, IntPoint& graphicsLayerParentLocation);
     void updateAncestorClippingLayerGeometry(const RenderLayer* compositingContainer, const IntPoint& snappedOffsetFromCompositedAncestor, IntPoint& graphicsLayerParentLocation);
     void updateChildContainmentLayerGeometry(const IntRect& clippingBox, const IntRect& localCompositingBounds);
     void updateChildTransformLayerGeometry();
     void updateMaskLayerGeometry();
     void updateTransformGeometry(const IntPoint& snappedOffsetFromCompositedAncestor, const IntRect& relativeCompositingBounds);
     void updateForegroundLayerGeometry(const FloatSize& relativeCompositingBoundsSize, const IntRect& clippingBox);
     void updateBackgroundLayerGeometry(const FloatSize& relativeCompositingBoundsSize);
-    void updateReflectionLayerGeometry();
+    void updateReflectionLayerGeometry(Vector<RenderLayer*>& layersNeedingPaintInvalidation);
     void updateScrollingLayerGeometry(const IntRect& localCompositingBounds);
     void updateChildClippingMaskLayerGeometry();
 
     void createPrimaryGraphicsLayer();
     void destroyGraphicsLayers();
 
     PassOwnPtr<GraphicsLayer> createGraphicsLayer(CompositingReasons);
     bool toggleScrollbarLayerIfNeeded(OwnPtr<GraphicsLayer>&, bool needsLayer, CompositingReasons);
 
     RenderLayerModelObject* renderer() const { return m_owningLayer.renderer(); }
@@ skipping 164 matching lines @@
     bool m_canCompositeFilters : 1;
     bool m_backgroundLayerPaintsFixedRootBackground : 1;
     bool m_needToUpdateGraphicsLayer : 1;
     bool m_needToUpdateGraphicsLayerOfAllDecendants : 1;
     bool m_scrollingContentsAreEmpty : 1;
 };
 
 } // namespace WebCore
 
 #endif // CompositedLayerMapping_h