1 files changed, 7 insertions, 1 deletions
diff --git a/chromium/third_party/blink/renderer/core/layout/svg/line/svg_root_inline_box.h b/chromium/third_party/blink/renderer/core/layout/svg/line/svg_root_inline_box.h
index 8f741b84c92..3fc347d75a5 100644
--- a/chromium/third_party/blink/renderer/core/layout/svg/line/svg_root_inline_box.h
+++ b/chromium/third_party/blink/renderer/core/layout/svg/line/svg_root_inline_box.h
@@ -24,6 +24,7 @@
 #define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_SVG_LINE_SVG_ROOT_INLINE_BOX_H_
 
 #include "third_party/blink/renderer/core/layout/line/root_inline_box.h"
+#include "third_party/blink/renderer/platform/wtf/casting.h"
 
 namespace blink {
 
@@ -60,7 +61,12 @@ class SVGRootInlineBox final : public RootInlineBox {
   LayoutUnit logical_height_;
 };
 
-DEFINE_INLINE_BOX_TYPE_CASTS(SVGRootInlineBox);
+template <>
+struct DowncastTraits<SVGRootInlineBox> {
+  static bool AllowFrom(const InlineBox& box) {
+    return box.IsSVGRootInlineBox();
+  }
+};
 
 }  // namespace blink