1 files changed, 1 insertions, 1 deletions
diff --git a/chromium/third_party/blink/renderer/core/dom/tree_walker.h b/chromium/third_party/blink/renderer/core/dom/tree_walker.h
index ac007d9a210..3169039986b 100644
--- a/chromium/third_party/blink/renderer/core/dom/tree_walker.h
+++ b/chromium/third_party/blink/renderer/core/dom/tree_walker.h
@@ -51,7 +51,7 @@ class TreeWalker final : public ScriptWrappable, public NodeIteratorBase {
   Node* previousNode(ExceptionState&);
   Node* nextNode(ExceptionState&);
 
-  void Trace(Visitor*) override;
+  void Trace(Visitor*) const override;
 
  private:
   Node* SetCurrent(Node*);