| Index: Source/modules/mediastream/MediaStreamTrackEvent.cpp | 
| diff --git a/Source/modules/mediastream/MediaStreamTrackEvent.cpp b/Source/modules/mediastream/MediaStreamTrackEvent.cpp | 
| index 581f3481db26cd47bd8414efd790dbaafcd73150..4f7eb7af32d9db9bfc0bdbb716726a7808ff1c5c 100644 | 
| --- a/Source/modules/mediastream/MediaStreamTrackEvent.cpp | 
| +++ b/Source/modules/mediastream/MediaStreamTrackEvent.cpp | 
| @@ -34,7 +34,7 @@ PassRefPtrWillBeRawPtr<MediaStreamTrackEvent> MediaStreamTrackEvent::create() | 
| return adoptRefWillBeNoop(new MediaStreamTrackEvent); | 
| } | 
|  | 
| -PassRefPtrWillBeRawPtr<MediaStreamTrackEvent> MediaStreamTrackEvent::create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<MediaStreamTrack> track) | 
| +PassRefPtrWillBeRawPtr<MediaStreamTrackEvent> MediaStreamTrackEvent::create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<MediaStreamTrack> track) | 
| { | 
| return adoptRefWillBeNoop(new MediaStreamTrackEvent(type, canBubble, cancelable, track)); | 
| } | 
| @@ -45,7 +45,7 @@ MediaStreamTrackEvent::MediaStreamTrackEvent() | 
| ScriptWrappable::init(this); | 
| } | 
|  | 
| -MediaStreamTrackEvent::MediaStreamTrackEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<MediaStreamTrack> track) | 
| +MediaStreamTrackEvent::MediaStreamTrackEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<MediaStreamTrack> track) | 
| : Event(type, canBubble, cancelable) | 
| , m_track(track) | 
| { | 
| @@ -68,6 +68,7 @@ const AtomicString& MediaStreamTrackEvent::interfaceName() const | 
|  | 
| void MediaStreamTrackEvent::trace(Visitor* visitor) | 
| { | 
| +    visitor->trace(m_track); | 
| Event::trace(visitor); | 
| } | 
|  | 
|  |