Index: Source/core/timing/PerformanceNavigation.h |
diff --git a/Source/core/timing/PerformanceNavigation.h b/Source/core/timing/PerformanceNavigation.h |
index 819404398b52751a898af1e2caf664e4eba4dc3a..a6dde6e19bb86671969fac448934ce56cf6a5498 100644 |
--- a/Source/core/timing/PerformanceNavigation.h |
+++ b/Source/core/timing/PerformanceNavigation.h |
@@ -58,7 +58,7 @@ public: |
unsigned short type() const; |
unsigned short redirectCount() const; |
- void trace(Visitor*) { } |
+ virtual void trace(Visitor*) { } |
private: |
explicit PerformanceNavigation(LocalFrame*); |