Index: Source/core/frame/BarProp.h |
diff --git a/Source/core/frame/BarProp.h b/Source/core/frame/BarProp.h |
index 826c4e98ca113d64ace1aec87c1c820d3c7d29d0..d3261c1fe80617252867c53db97d332b592e996d 100644 |
--- a/Source/core/frame/BarProp.h |
+++ b/Source/core/frame/BarProp.h |
@@ -50,7 +50,7 @@ namespace blink { |
bool visible() const; |
- void trace(Visitor*) { } |
+ virtual void trace(Visitor*) { } |
private: |
BarProp(LocalFrame*, Type); |