Divorce PaintInvalidationState from LayoutState

Source/core/rendering/RenderObject.h

Index: Source/core/rendering/RenderObject.h
diff --git a/Source/core/rendering/RenderObject.h b/Source/core/rendering/RenderObject.h
index 6a667f49046556f1bd3515cef74466cd123ca674..9109075e0db3bfc34a77dc120bbfd6542e61183f 100644
--- a/Source/core/rendering/RenderObject.h
+++ b/Source/core/rendering/RenderObject.h
@@ -54,6 +54,7 @@ class HitTestLocation;
 class HitTestResult;
 class InlineBox;
 class InlineFlowBox;
+class InvalidationTreeWalkState;
 class Position;
 class PositionWithAffinity;
 class PseudoStyleRequest;
@@ -733,7 +734,7 @@ public:
 
     // Convert a local quad into the coordinate system of container, taking transforms into account.
     FloatQuad localToContainerQuad(const FloatQuad&, const RenderLayerModelObject* paintInvalidatinoContainer, MapCoordinatesFlags = 0, bool* wasFixed = 0) const;
-    FloatPoint localToContainerPoint(const FloatPoint&, const RenderLayerModelObject* paintInvalidationContainer, MapCoordinatesFlags = 0, bool* wasFixed = 0) const;
+    FloatPoint localToContainerPoint(const FloatPoint&, const RenderLayerModelObject* paintInvalidationContainer, MapCoordinatesFlags = 0, bool* wasFixed = 0, const InvalidationTreeWalkState* = 0) const;
 
     // Return the offset from the container() renderer (excluding transforms). In multi-column layout,
     // different offsets apply at different points, so return the offset that applies to the given point.
@@ -744,7 +745,7 @@ public:
     virtual void absoluteRects(Vector<IntRect>&, const LayoutPoint&) const { }
 
     // Computes the position of the given render object in the space of |repaintContainer|.
-    LayoutPoint positionFromPaintInvalidationContainer(const RenderLayerModelObject* paintInvalidationContainer) const;
+    LayoutPoint positionFromPaintInvalidationContainer(const RenderLayerModelObject* paintInvalidationContainer, const InvalidationTreeWalkState* = 0) const;
 
     IntRect absoluteBoundingBoxRect() const;
     // FIXME: This function should go away eventually
@@ -808,10 +809,10 @@ public:
     }
 
     // Returns the paint invalidation rect for this RenderObject in the coordinate space of the paint backing (typically a GraphicsLayer) for |paintInvalidationContainer|.
-    LayoutRect computePaintInvalidationRect(const RenderLayerModelObject* paintInvalidationContainer) const;
+    LayoutRect computePaintInvalidationRect(const RenderLayerModelObject* paintInvalidationContainer, const InvalidationTreeWalkState* = 0) const;
 
     // Returns the rect bounds needed to invalidate the paint of this object, in the coordinate space of the rendering backing of |paintInvalidationContainer|
-    LayoutRect boundsRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer) const;
+    LayoutRect boundsRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const InvalidationTreeWalkState* = 0) const;
 
     // Actually do the paint invalidate of rect r for this object which has been computed in the coordinate space
     // of the GraphicsLayer backing of |paintInvalidationContainer|. Note that this coordinaten space is not the same
@@ -831,7 +832,7 @@ public:
         const LayoutRect& oldBounds, const LayoutPoint& oldPositionFromPaintInvalidationContainer);
 
     // Walk the tree after layout issuing paint invalidations for renderers that have changed or moved, updating bounds that have changed, and clearing paint invalidation state.
-    virtual void invalidateTreeAfterLayout(const RenderLayerModelObject&);
+    virtual void invalidateTreeAfterLayout(const InvalidationTreeWalkState&);
 
     virtual void invalidatePaintForOverflow();
     void invalidatePaintForOverflowIfNeeded();
@@ -845,13 +846,13 @@ public:
         return clippedOverflowRectForPaintInvalidation(0);
     }
     IntRect pixelSnappedAbsoluteClippedOverflowRect() const;
-    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer) const;
-    virtual LayoutRect rectWithOutlineForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, LayoutUnit outlineWidth) const;
+    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, const InvalidationTreeWalkState* = 0) const;
+    virtual LayoutRect rectWithOutlineForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, LayoutUnit outlineWidth, const InvalidationTreeWalkState* = 0) const;
 
     // Given a rect in the object's coordinate space, compute a rect suitable for invalidating paints of
     // that rect in the coordinate space of paintInvalidationContainer.
-    virtual void mapRectToPaintInvalidationBacking(const RenderLayerModelObject* paintInvalidationContainer, LayoutRect&, bool fixed = false) const;
-    virtual void computeFloatRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, FloatRect& paintInvalidationRect, bool fixed = false) const;
+    virtual void mapRectToPaintInvalidationBacking(const RenderLayerModelObject* paintInvalidationContainer, LayoutRect&, bool fixed = false, const InvalidationTreeWalkState* = 0) const;
+    virtual void computeFloatRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer, FloatRect& paintInvalidationRect, bool fixed = false, const InvalidationTreeWalkState* = 0) const;
 
     // Return the offset to the column in which the specified point (in flow-thread coordinates)
     // lives. This is used to convert a flow-thread point to a visual point.
@@ -951,7 +952,7 @@ public:
 
     // Map points and quads through elements, potentially via 3d transforms. You should never need to call these directly; use
     // localToAbsolute/absoluteToLocal methods instead.
-    virtual void mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0) const;
+    virtual void mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0, const InvalidationTreeWalkState* = 0) const;
     virtual void mapAbsoluteToLocalPoint(MapCoordinatesFlags, TransformState&) const;
 
     // Pushes state onto RenderGeometryMap about how to map coordinates from this renderer to its container, or ancestorToStopAt (whichever is encountered first).