Skip PositionedMovementLayout when descendants depend on element's height

Source/core/rendering/RenderBox.h

Index: Source/core/rendering/RenderBox.h
diff --git a/Source/core/rendering/RenderBox.h b/Source/core/rendering/RenderBox.h
index be4880c3ef11cbacf93ce68b61acdddac960c19c..365afde44f203d28c04afc1d37e95cf5afb3097b 100644
--- a/Source/core/rendering/RenderBox.h
+++ b/Source/core/rendering/RenderBox.h
@@ -524,24 +524,6 @@ public:
 
     void logicalExtentAfterUpdatingLogicalWidth(const LayoutUnit& logicalTop, LogicalExtentComputedValues&);
 
-    // Called when a positioned object moves but doesn't necessarily change size.  A simplified layout is attempted
-    // that just updates the object's position. If the size does change, the object remains dirty.
-    bool tryLayoutDoingPositionedMovementOnly()
-    {
-        LayoutUnit oldWidth = logicalWidth();
-        LogicalExtentComputedValues computedValues;
-        logicalExtentAfterUpdatingLogicalWidth(logicalTop(), computedValues);
-        // If we shrink to fit our width may have changed, so we still need full layout.
-        if (oldWidth != computedValues.m_extent)
-            return false;
-        setLogicalWidth(computedValues.m_extent);
-        setLogicalLeft(computedValues.m_position);
-        setMarginStart(computedValues.m_margins.m_start);
-        setMarginEnd(computedValues.m_margins.m_end);
-        updateLogicalHeight();
-        return true;
-    }
-
     virtual PositionWithAffinity positionForPoint(const LayoutPoint&) override;
 
     void removeFloatingOrPositionedChildFromBlockLists();