Merge back LayoutLayerModelObject into RenderBoxModelObject

Source/core/layout/LayoutTableCell.cpp

Index: Source/core/layout/LayoutTableCell.cpp
diff --git a/Source/core/layout/LayoutTableCell.cpp b/Source/core/layout/LayoutTableCell.cpp
index fefca898d222d87637ca8449be4d3094e259880d..91cb0c7f6270af910ff4c2b0274adc6735bd5a5c 100644
--- a/Source/core/layout/LayoutTableCell.cpp
+++ b/Source/core/layout/LayoutTableCell.cpp
@@ -312,7 +312,7 @@ LayoutSize LayoutTableCell::offsetFromContainer(const LayoutObject* o, const Lay
     return offset;
 }
 
-LayoutRect LayoutTableCell::clippedOverflowRectForPaintInvalidation(const LayoutLayerModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState) const
+LayoutRect LayoutTableCell::clippedOverflowRectForPaintInvalidation(const RenderBoxModelObject* paintInvalidationContainer, const PaintInvalidationState* paintInvalidationState) const
 {
     // If the table grid is dirty, we cannot get reliable information about adjoining cells,
     // so we ignore outside borders. This should not be a problem because it means that
@@ -358,7 +358,7 @@ LayoutRect LayoutTableCell::clippedOverflowRectForPaintInvalidation(const Layout
     return r;
 }
 
-void LayoutTableCell::mapRectToPaintInvalidationBacking(const LayoutLayerModelObject* paintInvalidationContainer, LayoutRect& r, const PaintInvalidationState* paintInvalidationState) const
+void LayoutTableCell::mapRectToPaintInvalidationBacking(const RenderBoxModelObject* paintInvalidationContainer, LayoutRect& r, const PaintInvalidationState* paintInvalidationState) const
 {
     if (paintInvalidationContainer == this)
         return;