Incorrect invalidation on Google Forum

Source/core/rendering/RenderObject.cpp

Index: Source/core/rendering/RenderObject.cpp
diff --git a/Source/core/rendering/RenderObject.cpp b/Source/core/rendering/RenderObject.cpp
index d79cd3f75902c5e8c1d3aae705e877adb5771435..ff6eec93a3eeda5bd5817ab7371deafe366cb7f5 100644
--- a/Source/core/rendering/RenderObject.cpp
+++ b/Source/core/rendering/RenderObject.cpp
@@ -1857,8 +1857,6 @@ StyleDifference RenderObject::adjustStyleDifference(StyleDifference diff, unsign
                 diff = StyleDifferenceLayout; // FIXME: Do this for now since SimplifiedLayout cannot handle updating floating objects lists.
             else if (diff < StyleDifferenceLayoutPositionedMovementOnly)
                 diff = StyleDifferenceSimplifiedLayout;
-            else if (diff < StyleDifferenceSimplifiedLayout)
-                diff = StyleDifferenceSimplifiedLayoutAndPositionedMovement;
         } else if (diff < StyleDifferenceRecompositeLayer)
             diff = StyleDifferenceRecompositeLayer;
     }
@@ -1987,10 +1985,7 @@ void RenderObject::setStyle(PassRefPtr<RenderStyle> style)
             setNeedsLayoutAndPrefWidthsRecalc();
         else if (updatedDiff == StyleDifferenceLayoutPositionedMovementOnly)
             setNeedsPositionedMovementLayout();
-        else if (updatedDiff == StyleDifferenceSimplifiedLayoutAndPositionedMovement) {
-            setNeedsPositionedMovementLayout();
-            setNeedsSimplifiedNormalFlowLayout();
-        } else if (updatedDiff == StyleDifferenceSimplifiedLayout)
+        else if (updatedDiff == StyleDifferenceSimplifiedLayout)
             setNeedsSimplifiedNormalFlowLayout();
     }
 
@@ -2139,9 +2134,6 @@ void RenderObject::styleDidChange(StyleDifference diff, const RenderStyle* oldSt
             setNeedsLayoutAndPrefWidthsRecalc();
         else
             setNeedsSimplifiedNormalFlowLayout();
-    } else if (diff == StyleDifferenceSimplifiedLayoutAndPositionedMovement) {
-        setNeedsPositionedMovementLayout();
-        setNeedsSimplifiedNormalFlowLayout();
     } else if (diff == StyleDifferenceLayoutPositionedMovementOnly)
         setNeedsPositionedMovementLayout();