| Index: Source/modules/mediastream/MediaStreamTrack.idl | 
| diff --git a/Source/modules/mediastream/MediaStreamTrack.idl b/Source/modules/mediastream/MediaStreamTrack.idl | 
| index 6710c70208f135d64e7413aded94e30734c1b7cc..116cc33a24f4a3610062b25e9f62c1f89c61beda 100644 | 
| --- a/Source/modules/mediastream/MediaStreamTrack.idl | 
| +++ b/Source/modules/mediastream/MediaStreamTrack.idl | 
| @@ -23,7 +23,6 @@ | 
| */ | 
|  | 
| [ | 
| -    NoInterfaceObject, | 
| EventTarget, | 
| ActiveDOMObject | 
| ] interface MediaStreamTrack { | 
| @@ -38,6 +37,8 @@ | 
| attribute EventListener onunmute; | 
| attribute EventListener onended; | 
|  | 
| +    [CallWith=ScriptExecutionContext, RaisesException] static sequence<SourceInfo> getSourceInfos(); | 
| + | 
| // EventTarget interface | 
| void addEventListener(DOMString type, | 
| EventListener listener, | 
|  |