[css-grid] "normal" alignment is "start" for replaced elements

third_party/WebKit/Source/core/layout/LayoutReplaced.h

Index: third_party/WebKit/Source/core/layout/LayoutReplaced.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutReplaced.h b/third_party/WebKit/Source/core/layout/LayoutReplaced.h
index 18e8e1507ecd4309baa0c9ceae2067ba0c181d19..61f8c003cc8c59cf0a649e2d50ced7e1238337f6 100644
--- a/third_party/WebKit/Source/core/layout/LayoutReplaced.h
+++ b/third_party/WebKit/Source/core/layout/LayoutReplaced.h
@@ -141,6 +141,10 @@ class CORE_EXPORT LayoutReplaced : public LayoutBox {
 
   PositionWithAffinity positionForPoint(const LayoutPoint&) override;
 
+  bool isOfType(LayoutObjectType type) const override {
+    return type == LayoutObjectLayoutReplaced || LayoutBox::isOfType(type);
+  }
+
  private:
   void computePreferredLogicalWidths() final;