Don't layout when isSelfPaintingLayer() changes

Source/core/rendering/RenderLayerModelObject.cpp

Index: Source/core/rendering/RenderLayerModelObject.cpp
diff --git a/Source/core/rendering/RenderLayerModelObject.cpp b/Source/core/rendering/RenderLayerModelObject.cpp
index ce728d95341d91bafed60c584b5b168657f91c4d..724750e2bab00d3296030e1f2f17cfe59f6172c2 100644
--- a/Source/core/rendering/RenderLayerModelObject.cpp
+++ b/Source/core/rendering/RenderLayerModelObject.cpp
@@ -121,8 +121,6 @@ void RenderLayerModelObject::styleWillChange(StyleDifference diff, const RenderS
 void RenderLayerModelObject::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
 {
     bool hadTransform = hasTransform();
-    bool hadLayer = hasLayer();
-    bool layerWasSelfPainting = hadLayer && layer()->isSelfPaintingLayer();
 
     RenderObject::styleDidChange(diff, oldStyle);
     updateFromStyle();
@@ -161,10 +159,7 @@ void RenderLayerModelObject::styleDidChange(StyleDifference diff, const RenderSt
         // FIXME: Ideally we shouldn't need this setter but we can't easily infer an overflow-only layer
         // from the style.
         layer()->setLayerType(type);
-
         layer()->styleChanged(diff, oldStyle);
-        if (hadLayer && layer()->isSelfPaintingLayer() != layerWasSelfPainting)
-            setChildNeedsLayout();
     }
 
     if (FrameView *frameView = view()->frameView()) {