Roll IDL to multivm@683

third_party/WebCore/Modules/mediastream/MediaStreamTrackList.idl

Index: third_party/WebCore/Modules/mediastream/MediaStreamTrackList.idl
diff --git a/third_party/WebCore/Modules/mediastream/MediaStreamTrackList.idl b/third_party/WebCore/Modules/mediastream/MediaStreamTrackList.idl
index 4dd9c2972c8d5c898943f7e58a2bea6927b790df..957655d080d8a2bd7cb1f9bb71286ada7f4efe40 100644
--- a/third_party/WebCore/Modules/mediastream/MediaStreamTrackList.idl
+++ b/third_party/WebCore/Modules/mediastream/MediaStreamTrackList.idl
@@ -26,11 +26,29 @@ module core {
 
     interface [
         Conditional=MEDIA_STREAM,
-        IndexedGetter
+        IndexedGetter,
+        EventTarget
     ] MediaStreamTrackList {
+        readonly attribute unsigned long length;
         MediaStreamTrack item(in [IsIndex] unsigned long index);
 
-        readonly attribute unsigned long length;
+        void add(in MediaStreamTrack track)
+            raises(DOMException);
+        void remove(in MediaStreamTrack track)
+            raises(DOMException);
+
+        attribute EventListener onaddtrack;
+        attribute EventListener onremovetrack;
+
+        // EventTarget interface
+        void addEventListener(in DOMString type,
+                              in EventListener listener,
+                              in [Optional] boolean useCapture);
+        void removeEventListener(in DOMString type,
+                                 in EventListener listener,
+                                 in [Optional] boolean useCapture);
+        boolean dispatchEvent(in Event event)
+            raises(EventException);
     };
 
 }