Index: third_party/WebKit/Source/modules/webmidi/MIDIPort.h |
diff --git a/third_party/WebKit/Source/modules/webmidi/MIDIPort.h b/third_party/WebKit/Source/modules/webmidi/MIDIPort.h |
index 5a3090b5e1e9d0219f6c1a90fc6c181d382d4e2e..72173aa69cc0245a6066bbf696687d54d1f94ec5 100644 |
--- a/third_party/WebKit/Source/modules/webmidi/MIDIPort.h |
+++ b/third_party/WebKit/Source/modules/webmidi/MIDIPort.h |
@@ -78,6 +78,8 @@ public: |
DECLARE_VIRTUAL_TRACE(); |
+ DECLARE_VIRTUAL_TRACE_WRAPPERS(); |
+ |
DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange); |
// EventTarget |