Bug 1284726 - move MediaStreamTrackEvent.webidl back out of MOZ_WEBRTC (used in gUM). r=jesup

MozReview-Commit-ID: Hx2RHxxgIQR

--HG--
extra : rebase_source : a5ed1c403bd92650fa4ae4f55640e97936121499

dom/webidl/moz.build

@@ -794,6 +794,7 @@ GENERATED_EVENTS_WEBIDL_FILES = [
     'IccChangeEvent.webidl',
     'ImageCaptureErrorEvent.webidl',
     'MediaStreamEvent.webidl',
+    'MediaStreamTrackEvent.webidl',
     'MozCellBroadcastEvent.webidl',
     'MozClirModeEvent.webidl',
     'MozContactChangeEvent.webidl',
@@ -835,7 +836,6 @@ GENERATED_EVENTS_WEBIDL_FILES = [
 
 if CONFIG['MOZ_WEBRTC']:
     GENERATED_EVENTS_WEBIDL_FILES += [
-        'MediaStreamTrackEvent.webidl',
         'RTCDataChannelEvent.webidl',
         'RTCPeerConnectionIceEvent.webidl',
         'RTCTrackEvent.webidl',