Index: Source/modules/webmidi/MIDIPortMap.h |
diff --git a/Source/modules/webmidi/MIDIPortMap.h b/Source/modules/webmidi/MIDIPortMap.h |
index d0fd5faa8bf909c8c8ad75f4f13f10a2a1085807..8adb362239fa360ae7d3b9484623468fe2d355b1 100644 |
--- a/Source/modules/webmidi/MIDIPortMap.h |
+++ b/Source/modules/webmidi/MIDIPortMap.h |
@@ -31,7 +31,7 @@ public: |
bool has(const String& key) const { return m_entries.contains(key); } |
Iterator* iterator(ScriptState*, ExceptionState&) { return entries(); } |
- void trace(Visitor* visitor) |
+ virtual void trace(Visitor* visitor) |
{ |
visitor->trace(m_entries); |
} |