Backed out changeset bac5f65e6931 (bug 1289976)

dom/media/MediaDecoder.cpp

@@ -421,7 +421,9 @@ void
 MediaDecoder::Pause()
 {
   MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(!IsShutdown());
+  if (IsShutdown()) {
+    return;
+  }
   if (mPlayState == PLAY_STATE_LOADING || IsEnded()) {
     mNextState = PLAY_STATE_PAUSED;
     return;