I'm not sure what the preferred naming convention is, but looking at existing event names [1][2], not many end in "ed". In addition, "close" is already used for other objects, so it seems odd to add "closed".

"close", "error", and "message" already exist. "ready" and "needkey" are new.


As an aside, MSE also uses "close" on the MediaSource object but also has "ended". I'm not sure why. (The events actually have a "source" prefix, which is unfortunate.)

[1] http://src.chromium.org/viewvc/blink/trunk/Source/core/events/EventTypeNames.in
[2] http://trac.webkit.org/browser/trunk/Source/WebCore/dom/EventNames.h