Remove duplicated invalidation

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 6edec16bd01f8d54abaee3bd93bf4541cc58f009..23147a467236e056aca1e61cb12001c4c2cb6ec1 100644
--- a/Source/core/rendering/RenderLayerModelObject.cpp
+++ b/Source/core/rendering/RenderLayerModelObject.cpp
@@ -96,15 +96,12 @@ void RenderLayerModelObject::styleWillChange(StyleDifference diff, const RenderS
     // we need to dirty our stacking context's z-order list.
     RenderStyle* oldStyle = style();
     if (oldStyle && newStyle) {
-        if (parent()) {
-            // Do a repaint with the old style first, e.g., for example if we go from
-            // having an outline to not having an outline.
-            if (diff == StyleDifferenceRepaintLayer) {
-                layer()->repainter().repaintIncludingDescendants();
-                if (oldStyle->clip() != newStyle->clip())
-                    layer()->clipper().clearClipRectsIncludingDescendants();
-            } else if (diff == StyleDifferenceRepaint || newStyle->outlineSize() < oldStyle->outlineSize())
-                repaint();
+        // Do a repaint with the old style first, e.g., for example if we go from
+        // having an outline to not having an outline.

[esprehn, 2014/03/31 17:19:50]

This comment is now stale. Please remove it.

[Julien - ping for review, 2014/03/31 18:04:04]

We still generate an invalidation with the old style through
RenderLayerRepainter so I don't think we should remove it. I will amend it to
refer to the logic in RenderObject::styleWillChange.

+        if (parent() && diff == StyleDifferenceRepaintLayer) {
+            layer()->repainter().repaintIncludingDescendants();
+            if (oldStyle->clip() != newStyle->clip())
+                layer()->clipper().clearClipRectsIncludingDescendants();
         }
 
         if (diff == StyleDifferenceLayout || diff == StyleDifferenceSimplifiedLayout) {