Bug 1611622 - Add a decode test for an OGG Vorbis file with a nil packet at EOS. r=bryce

The test file was created using VLC, that has a muxer that does this.

Differential Revision: https://phabricator.services.mozilla.com/D71351

dom/media/webaudio/test/mochitest.ini

@@ -14,6 +14,7 @@ support-files =
   file_nodeCreationDocumentGone.html
   invalid.txt
   layouttest-glue.js
+  nil-packet.ogg
   noaudio.webm
   small-shot-expected.wav
   small-shot-mono-expected.wav

dom/media/webaudio/test/test_mediaDecoding.html

@@ -203,6 +203,15 @@ var files = [
     duration: 1.0807,
     fuzzTolerance: 106,
     fuzzToleranceMobile: 3482
+  },
+  {
+    url: "nil-packet.ogg",
+    expectedUrl: null,
+    valid: true,
+    numberOfChannels: 2,
+    sampleRate: 48000,
+    frames: 18600,
+    duration: 0.3874,
   }
 ];