[CSS Shapes] Dynamically created element with image valued shape-outside doesn't update

Source/core/rendering/RenderBox.cpp

Index: Source/core/rendering/RenderBox.cpp
diff --git a/Source/core/rendering/RenderBox.cpp b/Source/core/rendering/RenderBox.cpp
index abf97e337275b9b818e57e6032ed1489f7674130..ec4be3cec147178789c84266dc793726984fc6ee 100644
--- a/Source/core/rendering/RenderBox.cpp
+++ b/Source/core/rendering/RenderBox.cpp
@@ -1630,11 +1630,16 @@ void RenderBox::imageChanged(WrappedImagePtr image, const IntRect*)
         return;
     }
 
+    ShapeValue* shapeOutsideValue = style()->shapeOutside();
+    if (!frameView()->isInPerformLayout() && isFloating() && shapeOutsideValue && shapeOutsideValue->image() && shapeOutsideValue->image()->data() == image) {
+        ShapeOutsideInfo::ensureInfo(this)->dirtyShapeSize();
+        markShapeOutsideDependentsForLayout();
+    }
+
     bool didFullRepaint = repaintLayerRectsForImage(image, style()->backgroundLayers(), true);
     if (!didFullRepaint)
         repaintLayerRectsForImage(image, style()->maskLayers(), false);
 
-
     if (hasLayer() && layer()->hasCompositedMask() && layersUseImage(image, style()->maskLayers()))
         layer()->contentChanged(MaskImageChanged);
 }