Add m-esr52 at 52.6.0

1 files changed, 1725 insertions, 0 deletions

diff --git a/dom/media/test/manifest.js b/dom/media/test/manifest.js
new file mode 100644
index 000000000..c6d533c1b
--- /dev/null
+++ b/dom/media/test/manifest.js
@@ -0,0 +1,1725 @@
+// In each list of tests below, test file types that are not supported should
+// be ignored. To make sure tests respect that, we include a file of type
+// "bogus/duh" in each list.
+
+// Make sure to not touch navigator in here, since we want to push prefs that
+// will affect the APIs it exposes, but the set of exposed APIs is determined
+// when Navigator.prototype is created.  So if we touch navigator before pushing
+// the prefs, the APIs it exposes will not take those prefs into account.  We
+// work around this by using a navigator object from a different global for our
+// UA string testing.
+var gManifestNavigatorSource = document.documentElement.appendChild(document.createElement("iframe"));
+gManifestNavigatorSource.style.display = "none";
+function manifestNavigator() {
+  return gManifestNavigatorSource.contentWindow.navigator;
+}
+
+// Similarly, use a <video> element from a different global for canPlayType or
+// other feature testing.  If we used one from our global and did so before our
+// prefs are pushed, then we'd instantiate HTMLMediaElement.prototype before the
+// prefs are pushed and APIs we expect to be on that object would not be there.
+function manifestVideo() {
+  return gManifestNavigatorSource.contentDocument.createElement('video');
+}
+
+// These are small test files, good for just seeing if something loads. We
+// really only need one test file per backend here.
+var gSmallTests = [
+  { name:"small-shot.ogg", type:"audio/ogg", duration:0.276 },
+  { name:"small-shot.m4a", type:"audio/mp4", duration:0.29 },
+  { name:"small-shot.mp3", type:"audio/mpeg", duration:0.27 },
+  { name:"small-shot-mp3.mp4", type:"audio/mp4; codecs=mp3", duration:0.34 },
+  { name:"small-shot.flac", type:"audio/flac", duration:0.197 },
+  { name:"r11025_s16_c1-short.wav", type:"audio/x-wav", duration:0.37 },
+  { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266 },
+  { name:"seek-short.webm", type:"video/webm", width:320, height:240, duration:0.23 },
+  { name:"vp9-short.webm", type:"video/webm", width:320, height:240, duration:0.20 },
+  { name:"detodos-short.opus", type:"audio/ogg; codecs=opus", duration:0.22 },
+  { name:"gizmo-short.mp4", type:"video/mp4", width:560, height:320, duration:0.27 },
+  { name:"flac-s24.flac", type:"audio/flac", duration:4.04 },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+if (SpecialPowers.Services.appinfo.name != "B2G") {
+  // We only run mochitests on b2g desktop and b2g emulator. The 3gp codecs
+  // aren't present on desktop, and the emulator codecs (which are different
+  // from the real device codecs) don't pass all of our tests, so we need
+  // to disable them.
+
+  gSmallTests = gSmallTests.concat([
+    { name:"sample.3gp", type:"video/3gpp", duration:4.933 },
+    { name:"sample.3g2", type:"video/3gpp2", duration:4.933 }
+  ]);
+}
+
+// Used by test_bug654550.html, for videoStats preference
+var gVideoTests = [
+  { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266 },
+  { name:"seek-short.webm", type:"video/webm", width:320, height:240, duration:0.23 },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+// Temp hack for trackIDs and captureStream() -- bug 1215769
+var gLongerTests = [
+  { name:"seek.webm", type:"video/webm", width:320, height:240, duration:3.966 },
+  { name:"gizmo.mp4", type:"video/mp4", width:560, height:320, duration:5.56 },
+];
+
+// Used by test_progress to ensure we get the correct progress information
+// during resource download.
+var gProgressTests = [
+  { name:"r11025_u8_c1.wav", type:"audio/x-wav", duration:1.0, size:11069 },
+  { name:"big-short.wav", type:"audio/x-wav", duration:1.11, size:12366 },
+  { name:"seek-short.ogv", type:"video/ogg", duration:1.03, size:79921 },
+  { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266, size:28942 },
+  { name:"seek-short.webm", type:"video/webm", duration:0.23, size:19267 },
+  { name:"gizmo-short.mp4", type:"video/mp4", duration:0.27, size:29905 },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+// Used by test_played.html
+var gPlayedTests = [
+  { name:"big-short.wav", type:"audio/x-wav", duration:1.11 },
+  { name:"seek-short.ogv", type:"video/ogg", duration:1.03 },
+  { name:"seek-short.webm", type:"video/webm", duration:0.23 },
+  { name:"gizmo-short.mp4", type:"video/mp4", duration:0.27 },
+  { name:"owl-short.mp3", type:"audio/mpeg", duration:0.52 },
+  // Disable vbr.mp3 to see if it reduces the error of AUDCLNT_E_CPUUSAGE_EXCEEDED.
+  // See bug 1110922 comment 26.
+  //{ name:"vbr.mp3", type:"audio/mpeg", duration:10.0 },
+  { name:"bug495794.ogg", type:"audio/ogg", duration:0.3 },
+];
+
+// Used by test_mozLoadFrom.  Need one test file per decoder backend, plus
+// anything for testing clone-specific bugs.
+var cloneKey = Math.floor(Math.random()*100000000);
+var gCloneTests = gSmallTests.concat([
+  { name:"bug520908.ogv", type:"video/ogg", duration:0.2 },
+  // short-video is more like 1s, so if you load this twice you'll get an unexpected duration
+  { name:"dynamic_resource.sjs?key=" + cloneKey + "&res1=320x240.ogv&res2=short-video.ogv",
+    type:"video/ogg", duration:0.266 },
+]);
+
+// Used by test_play_twice.  Need one test file per decoder backend, plus
+// anything for testing bugs that occur when replying a played file.
+var gReplayTests = gSmallTests.concat([
+  { name:"bug533822.ogg", type:"audio/ogg" },
+]);
+
+// Used by test_paused_after_ended. Need one test file per decoder backend, plus
+// anything for testing bugs that occur when replying a played file.
+var gPausedAfterEndedTests = gSmallTests.concat([
+  { name:"r11025_u8_c1.wav", type:"audio/x-wav", duration:1.0 },
+  { name:"small-shot.ogg", type:"video/ogg", duration:0.276 }
+]);
+
+// Test the mozHasAudio property, and APIs that detect different kinds of
+// tracks
+var gTrackTests = [
+  { name:"big-short.wav", type:"audio/x-wav", duration:1.11, size:12366, hasAudio:true, hasVideo:false },
+  { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266, size:28942, hasAudio:false, hasVideo:true },
+  { name:"short-video.ogv", type:"video/ogg", duration:1.081, hasAudio:true, hasVideo:true },
+  { name:"seek-short.webm", type:"video/webm", duration:0.23, size:19267, hasAudio:false, hasVideo:true },
+  { name:"flac-s24.flac", type:"audio/flac", duration:4.04, hasAudio:true, hasVideo:false },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+var gClosingConnectionsTest = [
+  { name:"seek-short.ogv", type:"video/ogg", duration:1.03 },
+];
+
+// Used by any media recorder test. Need one test file per decoder backend
+// currently supported by the media encoder.
+var gMediaRecorderTests = [
+  // Duration should be greater than 500ms because we will record 2
+  // time slices (250ms per slice)
+  { name:"detodos-recorder-test.opus", type:"audio/ogg; codecs=opus", duration:0.62 }
+];
+
+// Used by video media recorder tests
+var gMediaRecorderVideoTests = [
+  { name:"seek-short.webm", type:"video/webm", width:320, height:240, duration:0.23 },
+];
+
+// These are files that we want to make sure we can play through.  We can
+// also check metadata.  Put files of the same type together in this list so if
+// something crashes we have some idea of which backend is responsible.
+// Used by test_playback, which expects no error event and one ended event.
+var gPlayTests = [
+  // Test playback of a WebM file with vp9 video
+  { name:"vp9cake-short.webm", type:"video/webm", duration:1.00 },
+
+  // 8-bit samples
+  { name:"r11025_u8_c1.wav", type:"audio/x-wav", duration:1.0 },
+  // 8-bit samples, file is truncated
+  { name:"r11025_u8_c1_trunc.wav", type:"audio/x-wav", duration:1.8 },
+  // file has trailing non-PCM data
+  { name:"r11025_s16_c1_trailing.wav", type:"audio/x-wav", duration:1.0 },
+  // file with list chunk
+  { name:"r16000_u8_c1_list.wav", type:"audio/x-wav", duration:4.2 },
+  // file with 2 extra bytes of metadata
+  { name:"16bit_wave_extrametadata.wav", type:"audio/x-wav", duration:1.108 },
+  // 24-bit samples
+  { name:"wavedata_s24.wav", type:"audio/x-wav", duration:1.0 },
+  // aLaw compressed wave file
+  { name:"wavedata_alaw.wav", type:"audio/x-wav", duration:1.0 },
+  // uLaw compressed wave file
+  { name:"wavedata_ulaw.wav", type:"audio/x-wav", duration:1.0 },
+  // Data length 0xFFFFFFFF
+  { name:"bug1301226.wav", type:"audio/x-wav", duration:0.003673 },
+  // Data length 0xFFFFFFFF and odd chunk lengths.
+  { name:"bug1301226-odd.wav", type:"audio/x-wav", duration:0.003673 },
+
+  // Ogg stream without eof marker
+  { name:"bug461281.ogg", type:"application/ogg", duration:2.208 },
+
+  // oggz-chop stream
+  { name:"bug482461.ogv", type:"video/ogg", duration:4.34 },
+  // Theora only oggz-chop stream
+  { name:"bug482461-theora.ogv", type:"video/ogg", duration:4.138 },
+  // With first frame a "duplicate" (empty) frame.
+  { name:"bug500311.ogv", type:"video/ogg", duration:1.96 },
+  // Small audio file
+  { name:"small-shot.ogg", type:"audio/ogg", duration:0.276 },
+  // More audio in file than video.
+  { name:"short-video.ogv", type:"video/ogg", duration:1.081 },
+  // First Theora data packet is zero bytes.
+  { name:"bug504613.ogv", type:"video/ogg", duration:Number.NaN },
+  // Multiple audio streams.
+  { name:"bug516323.ogv", type:"video/ogg", duration:4.208 },
+  // oggz-chop with non-keyframe as first frame
+  { name:"bug556821.ogv", type:"video/ogg", duration:2.936 },
+
+  // Encoded with vorbis beta1, includes unusually sized codebooks
+  { name:"beta-phrasebook.ogg", type:"audio/ogg", duration:4.01 },
+  // Small file, only 1 frame with audio only.
+  { name:"bug520493.ogg", type:"audio/ogg", duration:0.458 },
+  // Small file with vorbis comments with 0 length values and names.
+  { name:"bug520500.ogg", type:"audio/ogg", duration:0.123 },
+
+  // Various weirdly formed Ogg files
+  { name:"bug499519.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug506094.ogv", type:"video/ogg", duration:0 },
+  { name:"bug498855-1.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug498855-2.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug498855-3.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug504644.ogv", type:"video/ogg", duration:1.6 },
+  { name:"chain.ogv", type:"video/ogg", duration:Number.NaN },
+  { name:"bug523816.ogv", type:"video/ogg", duration:0.766 },
+  { name:"bug495129.ogv", type:"video/ogg", duration:2.41 },
+  { name:"bug498380.ogv", type:"video/ogg", duration:0.7663 },
+  { name:"bug495794.ogg", type:"audio/ogg", duration:0.3 },
+  { name:"bug557094.ogv", type:"video/ogg", duration:0.24 },
+  { name:"multiple-bos.ogg", type:"video/ogg", duration:0.431 },
+  { name:"audio-overhang.ogg", type:"audio/ogg", duration:2.3 },
+  { name:"video-overhang.ogg", type:"audio/ogg", duration:3.966 },
+
+  // bug461281.ogg with the middle second chopped out.
+  { name:"audio-gaps.ogg", type:"audio/ogg", duration:2.208 },
+
+  // Test playback/metadata work after a redirect
+  { name:"redirect.sjs?domain=mochi.test:8888&file=320x240.ogv",
+    type:"video/ogg", duration:0.266 },
+
+  // Test playback of a webm file
+  { name:"seek-short.webm", type:"video/webm", duration:0.23 },
+
+  // Test playback of a WebM file with non-zero start time.
+  { name:"split.webm", type:"video/webm", duration:1.967 },
+
+  // Test playback of a WebM file with resolution changes.
+  { name:"resolution-change.webm", type:"video/webm", duration:6.533 },
+
+  // Test playback of a raw file
+  { name:"seek.yuv", type:"video/x-raw-yuv", duration:1.833 },
+
+  // A really short, low sample rate, single channel file. This tests whether
+  // we can handle playing files when only push very little audio data to the
+  // hardware.
+  { name:"spacestorm-1000Hz-100ms.ogg", type:"audio/ogg", duration:0.099 },
+
+  // Opus data in an ogg container
+  { name:"detodos-short.opus", type:"audio/ogg; codecs=opus", duration:0.22 },
+  // Opus data in a webm container
+  { name:"detodos-short.webm", type:"audio/webm; codecs=opus", duration:0.26 },
+  { name:"bug1066943.webm", type:"audio/webm; codecs=opus", duration:1.383 },
+
+  // Multichannel Opus in an ogg container
+  { name:"test-1-mono.opus", type:"audio/ogg; codecs=opus", duration:1.044 },
+  { name:"test-2-stereo.opus", type:"audio/ogg; codecs=opus", duration:2.925 },
+  { name:"test-3-LCR.opus", type:"audio/ogg; codecs=opus", duration:4.214 },
+  { name:"test-4-quad.opus", type:"audio/ogg; codecs=opus", duration:6.234 },
+  { name:"test-5-5.0.opus", type:"audio/ogg; codecs=opus", duration:7.558 },
+  { name:"test-6-5.1.opus", type:"audio/ogg; codecs=opus", duration:10.333 },
+  { name:"test-7-6.1.opus", type:"audio/ogg; codecs=opus", duration:11.690 },
+  { name:"test-8-7.1.opus", type:"audio/ogg; codecs=opus", duration:13.478 },
+
+  { name:"gizmo-short.mp4", type:"video/mp4", duration:0.27 },
+  // Test playback of a MP4 file with a non-zero start time (and audio starting
+  // a second later).
+  { name:"bipbop-lateaudio.mp4", type:"video/mp4" },
+
+  { name:"small-shot.m4a", type:"audio/mp4", duration:0.29 },
+  { name:"small-shot.mp3", type:"audio/mpeg", duration:0.27 },
+  { name:"owl.mp3", type:"audio/mpeg", duration:3.343 },
+  // owl.mp3 as above, but with something funny going on in the ID3v2 tag
+  // that causes DirectShow to fail.
+  { name:"owl-funny-id3.mp3", type:"audio/mpeg", duration:3.343 },
+  // owl.mp3 as above, but with something even funnier going on in the ID3v2 tag
+  // that causes DirectShow to fail.
+  { name:"owl-funnier-id3.mp3", type:"audio/mpeg", duration:3.343 },
+  // One second of silence with ~140KB of ID3 tags. Usually when the first MP3
+  // frame is at such a high offset into the file, MP3FrameParser will give up
+  // and report that the stream is not MP3. However, it does not count ID3 tags
+  // in that offset. This test case makes sure that ID3 exclusion holds.
+  { name:"huge-id3.mp3", type:"audio/mpeg", duration:1.00 },
+  // A truncated VBR MP3 with just enough frames to keep most decoders happy.
+  // The Xing header reports the length of the file to be around 10 seconds, but
+  // there is really only one second worth of data. We want MP3FrameParser to
+  // trust the header, so this should be reported as 10 seconds.
+  { name:"vbr-head.mp3", type:"audio/mpeg", duration:10.00 },
+
+  // A flac file where the STREAMINFO block was removed.
+  // It is necessary to parse the file to find an audio frame instead.
+  { name:"flac-noheader-s16.flac", type:"audio/flac", duration:4.0 },
+  { name:"flac-s24.flac", type:"audio/flac", duration:4.04 },
+  // Ogg with theora video and flac audio.
+  { name:"A4.ogv", type:"video/ogg", width:320, height:240, duration:3.13 },
+
+  // Invalid file
+  { name:"bogus.duh", type:"bogus/duh", duration:Number.NaN },
+];
+
+var gSeekToNextFrameTests = [
+  // Test playback of a WebM file with vp9 video
+  { name:"vp9-short.webm", type:"video/webm", duration:0.20 },
+  { name:"vp9cake-short.webm", type:"video/webm", duration:1.00 },
+  // oggz-chop stream
+  { name:"bug482461.ogv", type:"video/ogg", duration:4.34 },
+  // Theora only oggz-chop stream
+  { name:"bug482461-theora.ogv", type:"video/ogg", duration:4.138 },
+  // With first frame a "duplicate" (empty) frame.
+  { name:"bug500311.ogv", type:"video/ogg", duration:1.96 },
+
+  // More audio in file than video.
+  { name:"short-video.ogv", type:"video/ogg", duration:1.081 },
+  // First Theora data packet is zero bytes.
+  { name:"bug504613.ogv", type:"video/ogg", duration:Number.NaN },
+  // Multiple audio streams.
+  { name:"bug516323.ogv", type:"video/ogg", duration:4.208 },
+  // oggz-chop with non-keyframe as first frame
+  { name:"bug556821.ogv", type:"video/ogg", duration:2.936 },
+  // Various weirdly formed Ogg files
+  { name:"bug498855-1.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug498855-2.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug498855-3.ogv", type:"video/ogg", duration:0.24 },
+  { name:"bug504644.ogv", type:"video/ogg", duration:1.6 },
+
+  { name:"bug523816.ogv", type:"video/ogg", duration:0.766 },
+
+  { name:"bug498380.ogv", type:"video/ogg", duration:0.766 },
+  { name:"bug557094.ogv", type:"video/ogg", duration:0.24 },
+  { name:"multiple-bos.ogg", type:"video/ogg", duration:0.431 },
+  // Test playback/metadata work after a redirect
+  { name:"redirect.sjs?domain=mochi.test:8888&file=320x240.ogv",
+    type:"video/ogg", duration:0.266 },
+  // Test playback of a webm file
+  { name:"seek-short.webm", type:"video/webm", duration:0.23 },
+  // Test playback of a WebM file with non-zero start time.
+  { name:"split.webm", type:"video/webm", duration:1.967 },
+  // Test playback of a raw file
+  { name:"seek.yuv", type:"video/x-raw-yuv", duration:1.833 },
+
+  { name:"gizmo-short.mp4", type:"video/mp4", duration:0.27 },
+
+  // Test playback of a MP4 file with a non-zero start time (and audio starting
+  // a second later).
+  { name:"bipbop-lateaudio.mp4", type:"video/mp4" },
+];
+
+// A file for each type we can support.
+var gSnifferTests = [
+  { name:"big.wav", type:"audio/x-wav", duration:9.278982, size:102444 },
+  { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.233, size:28942 },
+  { name:"seek.webm", type:"video/webm", duration:3.966, size:215529 },
+  { name:"gizmo.mp4", type:"video/mp4", duration:5.56, size:383631 },
+  // A mp3 file with id3 tags.
+  { name:"id3tags.mp3", type:"audio/mpeg", duration:0.28, size:3530},
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+// Files that contain resolution changes
+var gResolutionChangeTests = [
+  { name:"resolution-change.webm", type:"video/webm", duration:6.533 },
+];
+
+// Files we must reject as invalid.
+var gInvalidTests = [
+  { name:"invalid-m0c0.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-m0c3.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-m1c0.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-m1c9.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-m2c0.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-m2c1.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-cmap-short.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-cmap-s0c0.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-cmap-s0c2.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-cmap-s1c2.opus", type:"audio/ogg; codecs=opus"},
+  { name:"invalid-preskip.webm", type:"audio/webm; codecs=opus"},
+];
+
+var gInvalidPlayTests = [
+  { name:"invalid-excess_discard.webm", type:"audio/webm; codecs=opus"},
+  { name:"invalid-excess_neg_discard.webm", type:"audio/webm; codecs=opus"},
+  { name:"invalid-neg_discard.webm", type:"audio/webm; codecs=opus"},
+  { name:"invalid-discard_on_multi_blocks.webm", type:"audio/webm; codecs=opus"},
+];
+
+// Files to check different cases of ogg skeleton information.
+// sample-fisbone-skeleton4.ogv
+// - Skeleton v4, w/ Content-Type,Role,Name,Language,Title for both theora/vorbis
+// sample-fisbone-wrong-header.ogv
+// - Skeleton v4, wrong message field sequence for vorbis
+// multiple-bos-more-header-fields.ogg
+// - Skeleton v3, w/ Content-Type,Role,Name,Language,Title for both theora/vorbis
+// seek-short.ogv
+// - No skeleton, but theora
+// audio-gaps-short.ogg
+// - No skeleton, but vorbis
+var gMultitrackInfoOggPlayList = [
+  { name:"sample-fisbone-skeleton4.ogv", type:"video/ogg", duration:1.00 },
+  { name:"sample-fisbone-wrong-header.ogv", type:"video/ogg", duration:1.00 },
+  { name:"multiple-bos-more-header-fileds.ogg", type:"video/ogg", duration:0.431 },
+  { name:"seek-short.ogv", type:"video/ogg", duration:1.03 },
+  { name:"audio-gaps-short.ogg", type:"audio/ogg", duration:0.50 }
+];
+// Pre-parsed results of gMultitrackInfoOggPlayList.
+var gOggTrackInfoResults = {
+  "sample-fisbone-skeleton4.ogv" : {
+    "audio_id":" audio_1",
+    "audio_kind":"main",
+    "audio_language":" en-US",
+    "audio_label":" Audio track for test",
+    "video_id":" video_1",
+    "video_kind":"main",
+    "video_language":" fr",
+    "video_label":" Video track for test"
+  },
+  "sample-fisbone-wrong-header.ogv" : {
+    "audio_id":"1",
+    "audio_kind":"main",
+    "audio_language":"",
+    "audio_label":"",
+    "video_id":" video_1",
+    "video_kind":"main",
+    "video_language":" fr",
+    "video_label":" Video track for test"
+  },
+  "multiple-bos-more-header-fileds.ogg" : {
+    "audio_id":"1",
+    "audio_kind":"main",
+    "audio_language":"",
+    "audio_label":"",
+    "video_id":"2",
+    "video_kind":"main",
+    "video_language":"",
+    "video_label":""
+  },
+  "seek-short.ogv" : {
+    "video_id":"2",
+    "video_kind":"main",
+    "video_language":"",
+    "video_label":""
+  },
+  "audio-gaps-short.ogg" : {
+    "audio_id":"1",
+    "audio_kind":"main",
+    "audio_language":"",
+    "audio_label":""
+  }
+};
+
+// Converts a path/filename to a file:// URI which we can load from disk.
+// Optionally checks whether the file actually exists on disk at the location
+// we've specified.
+function fileUriToSrc(path, mustExist) {
+  // android mochitest doesn't support file://
+  if (manifestNavigator().appVersion.indexOf("Android") != -1 || SpecialPowers.Services.appinfo.name == "B2G")
+    return path;
+
+  const Ci = SpecialPowers.Ci;
+  const Cc = SpecialPowers.Cc;
+  const Cr = SpecialPowers.Cr;
+  var dirSvc = Cc["@mozilla.org/file/directory_service;1"].
+               getService(Ci.nsIProperties);
+  var f = dirSvc.get("CurWorkD", Ci.nsILocalFile);
+  var split = path.split("/");
+  for(var i = 0; i < split.length; ++i) {
+    f.append(split[i]);
+  }
+  if (mustExist && !f.exists()) {
+    ok(false, "We expected '" + path + "' to exist, but it doesn't!");
+  }
+  return f.path;
+}
+
+// Returns true if two TimeRanges are equal, false otherwise
+function range_equals(r1, r2) {
+  if (r1.length != r2.length) {
+    return false;
+  }
+  for (var i = 0; i < r1.length; i++) {
+    if (r1.start(i) != r2.start(i) || r1.end(i) != r2.end(i)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+// These are URIs to files that we use to check that we don't leak any state
+// or other information such that script can determine stuff about a user's
+// environment. Used by test_info_leak.
+var gInfoLeakTests = [
+  {
+    type: 'video/ogg',
+    src: fileUriToSrc("tests/dom/media/test/320x240.ogv", true),
+  },{
+    type: 'video/ogg',
+    src: fileUriToSrc("tests/dom/media/test/404.ogv", false),
+  }, {
+    type: 'audio/x-wav',
+    src: fileUriToSrc("tests/dom/media/test/r11025_s16_c1.wav", true),
+  }, {
+    type: 'audio/x-wav',
+    src: fileUriToSrc("tests/dom/media/test/404.wav", false),
+  }, {
+    type: 'audio/ogg',
+    src: fileUriToSrc("tests/dom/media/test/bug461281.ogg", true),
+  }, {
+    type: 'audio/ogg',
+    src: fileUriToSrc("tests/dom/media/test/404.ogg", false),
+  }, {
+    type: 'video/webm',
+    src: fileUriToSrc("tests/dom/media/test/seek.webm", true),
+  }, {
+    type: 'video/webm',
+    src: fileUriToSrc("tests/dom/media/test/404.webm", false),
+  }, {
+    type: 'video/ogg',
+    src: 'http://localhost/404.ogv',
+  }, {
+    type: 'audio/x-wav',
+    src: 'http://localhost/404.wav',
+  }, {
+    type: 'video/webm',
+    src: 'http://localhost/404.webm',
+  }, {
+    type: 'video/ogg',
+    src: 'http://example.com/tests/dom/media/test/test_info_leak.html'
+  }, {
+    type: 'audio/ogg',
+    src: 'http://example.com/tests/dom/media/test/test_info_leak.html'
+  }
+];
+
+// These are files that must fire an error during load or playback, and do not
+// cause a crash. Used by test_playback_errors, which expects one error event
+// and no ended event. Put files of the same type together in this list so if
+// something crashes we have some idea of which backend is responsible.
+var gErrorTests = [
+  { name:"bogus.wav", type:"audio/x-wav" },
+  { name:"bogus.ogv", type:"video/ogg" },
+  { name:"448636.ogv", type:"video/ogg" },
+  { name:"bug504843.ogv", type:"video/ogg" },
+  { name:"bug501279.ogg", type:"audio/ogg" },
+  { name:"bug580982.webm", type:"video/webm" },
+  { name:"bug603918.webm", type:"video/webm" },
+  { name:"bug604067.webm", type:"video/webm" },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+function IsWindowsVistaOrLater() {
+  var re = /Windows NT (\d+.\d)/;
+  var winver = manifestNavigator().userAgent.match(re);
+  return winver && winver.length == 2 && parseFloat(winver[1]) >= 6.0;
+}
+
+// Windows' H.264 decoder cannot handle H.264 streams with resolution
+// less than 48x48 pixels. We refuse to play and error on such streams.
+if (IsWindowsVistaOrLater() &&
+    manifestVideo().canPlayType('video/mp4; codecs="avc1.42E01E"')) {
+  gErrorTests = gErrorTests.concat({name: "red-46x48.mp4", type:"video/mp4"},
+                                   {name: "red-48x46.mp4", type:"video/mp4"});
+}
+
+// These are files that have nontrivial duration and are useful for seeking within.
+var gSeekTests = [
+  { name:"r11025_s16_c1.wav", type:"audio/x-wav", duration:1.0 },
+  { name:"audio.wav", type:"audio/x-wav", duration:0.031247 },
+  { name:"seek.ogv", type:"video/ogg", duration:3.966 },
+  { name:"320x240.ogv", type:"video/ogg", duration:0.266 },
+  { name:"seek.webm", type:"video/webm", duration:3.966 },
+  { name:"sine.webm", type:"audio/webm", duration:4.001 },
+  { name:"bug516323.indexed.ogv", type:"video/ogg", duration:4.208333 },
+  { name:"split.webm", type:"video/webm", duration:1.967 },
+  { name:"detodos.opus", type:"audio/ogg; codecs=opus", duration:2.9135 },
+  { name:"gizmo.mp4", type:"video/mp4", duration:5.56 },
+  { name:"owl.mp3", type:"audio/mpeg", duration:3.343 },
+  { name:"bogus.duh", type:"bogus/duh", duration:123 },
+
+  // Bug 1242338: hit a numerical problem while seeking to the duration.
+  { name:"bug482461-theora.ogv", type:"video/ogg", duration:4.138 },
+];
+
+var gFastSeekTests = [
+  { name:"gizmo.mp4", type:"video/mp4", keyframes:[0, 1.0, 2.0, 3.0, 4.0, 5.0 ] },
+  // Note: Not all keyframes in the file are actually referenced in the Cues in this file.
+  { name:"seek.webm", type:"video/webm", keyframes:[0, 0.8, 1.6, 2.4, 3.2]},
+  // Note: the sync points are the points on both the audio and video streams
+  // before the keyframes. You can't just assume that the keyframes are the sync
+  // points, as the audio required for that sync point may be before the keyframe.
+  { name:"bug516323.indexed.ogv", type:"video/ogg", keyframes:[0, 0.46, 3.06] },
+];
+
+// These files are WebMs without cues. They're seekable within their buffered
+// ranges. If work renders WebMs fully seekable these files should be moved
+// into gSeekTests
+var gCuelessWebMTests = [
+  { name:"no-cues.webm", type:"video/webm", duration:3.967 },
+];
+
+// These are files that are non seekable, due to problems with the media,
+// for example broken or missing indexes.
+var gUnseekableTests = [
+  { name:"bogus.duh", type:"bogus/duh"}
+];
+
+var androidVersion = -1; // non-Android platforms
+if (manifestNavigator().userAgent.indexOf("Mobile") != -1 ||
+    manifestNavigator().userAgent.indexOf("Tablet") != -1) {
+  // See nsSystemInfo.cpp, the getProperty('version') returns different value
+  // on each platforms, so we need to distinguish the android and B2G platform.
+  var versionString = manifestNavigator().userAgent.indexOf("Android") != -1 ?
+                      'version' : 'sdk_version';
+  androidVersion = SpecialPowers.Cc['@mozilla.org/system-info;1']
+                                .getService(SpecialPowers.Ci.nsIPropertyBag2)
+                                .getProperty(versionString);
+}
+
+function getAndroidVersion() {
+  return androidVersion;
+}
+
+//Android supports fragmented MP4 playback from 4.3.
+//Fragmented MP4.
+if (getAndroidVersion() >= 18) {
+  gUnseekableTests = gUnseekableTests.concat([
+    { name:"street.mp4", type:"video/mp4" }
+  ]);
+}
+
+// These are files suitable for using with a "new Audio" constructor.
+var gAudioTests = [
+  { name:"r11025_s16_c1.wav", type:"audio/x-wav", duration:1.0 },
+  { name:"sound.ogg", type:"audio/ogg" },
+  { name:"owl.mp3", type:"audio/mpeg", duration:3.343 },
+  { name:"small-shot.m4a", type:"audio/mp4", duration:0.29 },
+  { name:"bogus.duh", type:"bogus/duh", duration:123 }
+];
+
+// These files ensure our handling of 404 errors is consistent across the
+// various backends.
+var g404Tests = [
+  { name:"404.wav", type:"audio/x-wav" },
+  { name:"404.ogv", type:"video/ogg" },
+  { name:"404.oga", type:"audio/ogg" },
+  { name:"404.webm", type:"video/webm" },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+// These are files suitable for testing various decoder failures that are
+// expected to fire MEDIA_ERR_DECODE.  Used by test_decode_error, which expects
+// an error and emptied event, and no loadedmetadata or ended event.
+var gDecodeErrorTests = [
+  // Valid files with unsupported codecs
+  { name:"r11025_msadpcm_c1.wav", type:"audio/x-wav" },
+  { name:"dirac.ogg", type:"video/ogg" },
+  // Invalid files
+  { name:"bogus.wav", type:"audio/x-wav" },
+  { name:"bogus.ogv", type:"video/ogg" },
+
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+// These are files that are used for media fragments tests
+var gFragmentTests = [
+  { name:"big.wav", type:"audio/x-wav", duration:9.278982, size:102444 }
+];
+
+// Used by test_chaining.html. The |links| attributes is the number of links in
+// this file that we should be able to play.
+var gChainingTests = [
+  // Vorbis and Opus chained file. They have user comments |index=n| where `n`
+  // is the index of this segment in the file, 0 indexed.
+  { name:"chain.ogg", type:"audio/ogg", links: 4},
+  { name:"chain.opus", type:"audio/ogg; codec=opus", links: 4},
+  // Those files are chained files with a different number of channels in each
+  // part. This is not supported and should stop playing after the first part.
+  { name:"variable-channel.ogg", type:"audio/ogg", links: 1 },
+  { name:"variable-channel.opus", type:"audio/ogg; codec=opus", links: 1 },
+  // Those files are chained files with a different sample rate in each
+  // part. This is not supported and should stop playing after the first part.
+  { name:"variable-samplerate.ogg", type:"audio/ogg", links: 1 },
+  // Opus decoding in Firefox outputs 48 kHz PCM despite having a different
+  // original sample rate, so we can safely play Opus chained media that have
+  // different samplerate accross links.
+  { name:"variable-samplerate.opus", type:"audio/ogg; codec=opus", links: 2 },
+  // A chained video file. We don't support those, so only one link should be
+  // reported.
+  { name:"chained-video.ogv", type:"video/ogg", links: 1 },
+  // A file that consist in 4 links of audio, then another link that has video.
+  // We should stop right after the 4 audio links.
+  { name:"chained-audio-video.ogg", type:"video/ogg", links: 4 },
+  // An opus file that has two links, with a different preskip value for each
+  // link. We should be able to play both links.
+  { name:"variable-preskip.opus", type:"audio/ogg; codec=opus", links: 2 },
+  { name:"bogus.duh", type:"bogus/duh" }
+];
+
+// Videos with an aspect ratio. Used for testing that displaying frames
+// on a canvas works correctly in the case of non-standard aspect ratios.
+// See bug 874897 for an example.
+var gAspectRatioTests = [
+  { name:"VID_0001.ogg", type:"video/ogg", duration:19.966 }
+];
+
+// These are files with non-trivial tag sets.
+// Used by test_metadata.html.
+var gMetadataTests = [
+  // Ogg Vorbis files
+  { name:"short-video.ogv", tags: {
+      TITLE:"Lepidoptera",
+      ARTIST:"Epoq",
+      ALBUM:"Kahvi Collective",
+      DATE:"2002",
+      COMMENT:"http://www.kahvi.org",
+    }
+  },
+  { name:"bug516323.ogv", tags: {
+      GENRE:"Open Movie",
+      ENCODER:"Audacity",
+      TITLE:"Elephants Dream",
+      ARTIST:"Silvia Pfeiffer",
+      COMMENTS:"Audio Description"
+    }
+  },
+  { name:"bug516323.indexed.ogv", tags: {
+      GENRE:"Open Movie",
+      ENCODER:"Audacity",
+      TITLE:"Elephants Dream",
+      ARTIST:"Silvia Pfeiffer",
+      COMMENTS:"Audio Description"
+    }
+  },
+  { name:"detodos.opus", tags: {
+      title:"De todos. Para todos.",
+      artist:"Mozilla.org"
+    }
+  },
+  { name:"sound.ogg", tags: { } },
+  { name:"small-shot.ogg", tags: {
+      title:"Pew SFX"
+    }
+  },
+  { name:"badtags.ogg", tags: {
+      // We list only the valid tags here, and verify
+      // the invalid ones are filtered out.
+      title:"Invalid comments test file",
+      empty:"",
+      "":"empty",
+      "{- [(`!@\"#$%^&')] -}":"valid tag name, surprisingly"
+      // The file also includes the following invalid tags.
+      // "A description with no separator is a common problem.",
+      // "雨":"Likely, but an invalid key (non-ascii).",
+      // "not\nval\x1fid":"invalid tag name",
+      // "not~valid":"this isn't a valid name either",
+      // "not-utf-8":"invalid sequences: \xff\xfe\xfa\xfb\0eol"
+    }
+  },
+  { name:"wave_metadata.wav", tags: {
+      name:"Track Title",
+      artist:"Artist Name",
+      comments:"Comments",
+    }
+  },
+  { name:"wave_metadata_utf8.wav", tags: {
+      name:"歌曲名稱",
+      artist:"作曲者",
+      comments:"註解",
+    }
+  },
+  { name:"wave_metadata_unknown_tag.wav", tags: {
+      name:"Track Title",
+      comments:"Comments",
+    }
+  },
+  { name:"wave_metadata_bad_len.wav", tags: {
+      name:"Track Title",
+      artist:"Artist Name",
+      comments:"Comments",
+    }
+  },
+  { name:"wave_metadata_bad_no_null.wav", tags: {
+      name:"Track Title",
+      artist:"Artist Name",
+      comments:"Comments!!",
+    }
+  },
+  { name:"wave_metadata_bad_utf8.wav", tags: {
+      name:"歌曲名稱",
+      comments:"註解",
+    }
+  },
+  { name:"wavedata_u8.wav", tags: { }
+  },
+  { name:"flac-s24.flac", tags: {
+      ALBUM:"Seascapes",
+      TITLE:"(La Mer) - II. Jeux de vagues. Allegro",
+      COMPOSER:"Debussy, Claude",
+      TRACKNUMBER:"2/9",
+      DISCNUMBER:"1/1",
+      encoder:"Lavf57.41.100",
+    }
+  },
+];
+
+// Test files for Encrypted Media Extensions
+var gEMETests = [
+  {
+    name:"video-only with 2 keys",
+    tracks: [
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop-cenc-videoinit.mp4",
+                    "bipbop-cenc-video1.m4s",
+                    "bipbop-cenc-video2.m4s",
+                  ]
+      }
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d03" : "7e5733337e5733337e5733337e573333",
+      "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
+    },
+    sessionType:"temporary",
+    sessionCount:1,
+    duration:1.60,
+  },
+  {
+    name:"video-only with 2 keys, CORS",
+    tracks: [
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop-cenc-videoinit.mp4",
+                    "bipbop-cenc-video1.m4s",
+                    "bipbop-cenc-video2.m4s",
+                  ]
+      }
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d03" : "7e5733337e5733337e5733337e573333",
+      "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
+    },
+    sessionType:"temporary",
+    sessionCount:1,
+    crossOrigin:true,
+    duration:1.60,
+  },
+  {
+    name:"audio&video tracks, both with all keys",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop-cenc-audioinit.mp4",
+                    "bipbop-cenc-audio1.m4s",
+                    "bipbop-cenc-audio2.m4s",
+                    "bipbop-cenc-audio3.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop-cenc-videoinit.mp4",
+                    "bipbop-cenc-video1.m4s",
+                    "bipbop-cenc-video2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d03" : "7e5733337e5733337e5733337e573333",
+      "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"audio&video tracks, both with all keys, CORS",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop-cenc-audioinit.mp4",
+                    "bipbop-cenc-audio1.m4s",
+                    "bipbop-cenc-audio2.m4s",
+                    "bipbop-cenc-audio3.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop-cenc-videoinit.mp4",
+                    "bipbop-cenc-video1.m4s",
+                    "bipbop-cenc-video2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d03" : "7e5733337e5733337e5733337e573333",
+      "7e571d047e571d047e571d047e571d04" : "7e5744447e5744447e5744447e574444",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    crossOrigin:true,
+    duration:1.60,
+  },
+  {
+    name:"400x300 audio&video tracks, each with its key",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_300_215kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_300_215kbps-cenc-video-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-video-key1-1.m4s",
+                    "bipbop_300_215kbps-cenc-video-key1-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"640x480@624kbps audio&video tracks, each with its key",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_624kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_624kbps-cenc-video-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-video-key1-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"640x480@959kbps audio&video tracks, each with its key",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_959kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_480_959kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_480_959kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_480_959kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_480_959kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_959kbps-cenc-video-key1-init.mp4",
+                    "bipbop_480_959kbps-cenc-video-key1-1.m4s",
+                    "bipbop_480_959kbps-cenc-video-key1-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"640x480 then 400x300, same key (1st) per track",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_624kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_624kbps-cenc-video-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key1-1.m4s",
+                    "bipbop_300_215kbps-cenc-video-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-video-key1-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"640x480 then 400x300, same key (2nd) per track",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_624kbps-cenc-audio-key2-init.mp4",
+                    "bipbop_480_624kbps-cenc-audio-key2-1.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key2-2.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key2-3.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key2-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_624kbps-cenc-video-key2-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key2-1.m4s",
+                    "bipbop_300_215kbps-cenc-video-key2-init.mp4",
+                    "bipbop_300_215kbps-cenc-video-key2-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+      "7e571d047e571d047e571d047e571d22" : "7e5744447e5744447e5744447e574422",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"640x480 with 1st keys then 400x300 with 2nd keys",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_624kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_624kbps-cenc-video-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key1-1.m4s",
+                    "bipbop_300_215kbps-cenc-video-key2-init.mp4",
+                    "bipbop_300_215kbps-cenc-video-key2-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"400x300 with 1st keys then 640x480 with 2nd keys",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_300_215kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_300_215kbps-cenc-video-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-video-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-video-key2-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key2-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"640x480@959kbps with 1st keys then 640x480@624kbps with 2nd keys",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_959kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_480_959kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_480_959kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_480_959kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_480_959kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_959kbps-cenc-video-key1-init.mp4",
+                    "bipbop_480_959kbps-cenc-video-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-video-key2-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key2-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"640x480@624kbps with 1st keys then 640x480@959kbps with 2nd keys",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_480_624kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_480_624kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_480_624kbps-cenc-video-key1-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key1-1.m4s",
+                    "bipbop_480_959kbps-cenc-video-key2-init.mp4",
+                    "bipbop_480_959kbps-cenc-video-key2-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"400x300 with presentation size 533x300",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_300wp_227kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_300wp_227kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_300wp_227kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_300wp_227kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_300wp_227kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_300wp_227kbps-cenc-video-key1-init.mp4",
+                    "bipbop_300wp_227kbps-cenc-video-key1-1.m4s",
+                    "bipbop_300wp_227kbps-cenc-video-key1-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"400x300 as-is then 400x300 presented as 533x300",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[
+                    "bipbop_300_215kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_300_215kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_300_215kbps-cenc-video-key1-init.mp4",
+                    "bipbop_300_215kbps-cenc-video-key1-1.m4s",
+                    "bipbop_300wp_227kbps-cenc-video-key1-init.mp4",
+                    "bipbop_300wp_227kbps-cenc-video-key1-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"400x225",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_225w_175kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_225w_175kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_225w_175kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_225w_175kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_225w_175kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_225w_175kbps-cenc-video-key1-init.mp4",
+                    "bipbop_225w_175kbps-cenc-video-key1-1.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"640x360",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_360w_253kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_360w_253kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_360w_253kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_360w_253kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_360w_253kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_360w_253kbps-cenc-video-key1-init.mp4",
+                    "bipbop_360w_253kbps-cenc-video-key1-1.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name:"400x225 then 640x360",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_225w_175kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_225w_175kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_225w_175kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_225w_175kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_225w_175kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_225w_175kbps-cenc-video-key1-init.mp4",
+                    "bipbop_225w_175kbps-cenc-video-key1-1.m4s",
+                    "bipbop_360w_253kbps-cenc-video-key2-init.mp4",
+                    "bipbop_360w_253kbps-cenc-video-key2-1.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name:"640x360 then 640x480",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/mp4; codecs=\"mp4a.40.2\"",
+        fragments:[ "bipbop_360w_253kbps-cenc-audio-key1-init.mp4",
+                    "bipbop_360w_253kbps-cenc-audio-key1-1.m4s",
+                    "bipbop_360w_253kbps-cenc-audio-key1-2.m4s",
+                    "bipbop_360w_253kbps-cenc-audio-key1-3.m4s",
+                    "bipbop_360w_253kbps-cenc-audio-key1-4.m4s",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/mp4; codecs=\"avc1.64000d\"",
+        fragments:[ "bipbop_360w_253kbps-cenc-video-key1-init.mp4",
+                    "bipbop_360w_253kbps-cenc-video-key1-1.m4s",
+                    "bipbop_480_624kbps-cenc-video-key2-init.mp4",
+                    "bipbop_480_624kbps-cenc-video-key2-2.m4s",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "7e571d037e571d037e571d037e571d11" : "7e5733337e5733337e5733337e573311",
+      "7e571d047e571d047e571d047e571d21" : "7e5744447e5744447e5744447e574421",
+      "7e571d037e571d037e571d037e571d12" : "7e5733337e5733337e5733337e573312",
+    },
+    sessionType:"temporary",
+    sessionCount:3,
+    duration:1.60,
+  },
+  {
+    name: "WebM vorbis audio & vp8 video clearkey",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/webm; codecs=\"vorbis\"",
+        fragments:[ "bipbop_360w_253kbps-clearkey-audio.webm",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/webm; codecs=\"vp8\"",
+        fragments:[ "bipbop_360w_253kbps-clearkey-video-vp8.webm",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "f1f3ee1790527e9de47217d43835f76a" : "97b9ddc459c8d5ff23c1f2754c95abe8",
+      "8b5df745ad84145b5617c33116e35a67" : "bddfd35dd9be033ee73bc18bc1885056",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+  {
+    name: "WebM vorbis audio & vp9 video clearkey",
+    tracks: [
+      {
+        name:"audio",
+        type:"audio/webm; codecs=\"vorbis\"",
+        fragments:[ "bipbop_360w_253kbps-clearkey-audio.webm",
+                  ],
+      },
+      {
+        name:"video",
+        type:"video/webm; codecs=\"vp9\"",
+        fragments:[ "bipbop_360w_253kbps-clearkey-video-vp9.webm",
+                  ],
+      },
+    ],
+    keys: {
+      // "keyid" : "key"
+      "f1f3ee1790527e9de47217d43835f76a" : "97b9ddc459c8d5ff23c1f2754c95abe8",
+      "eedf63a94fa7c398ee094f123a4ee709" : "973b679a746c82f3acdb856b30e9378e",
+    },
+    sessionType:"temporary",
+    sessionCount:2,
+    duration:1.60,
+  },
+];
+
+var gEMENonMSEFailTests = [
+  {
+    name:"short-cenc.mp4",
+    audioType:"audio/mp4; codecs=\"mp4a.40.2\"",
+    videoType:"video/mp4; codecs=\"avc1.64000d\"",
+    duration:0.47,
+  },
+];
+
+// These are files that are used for video decode suspend in
+// background tabs tests.
+var gDecodeSuspendTests = [
+  { name:"gizmo.mp4", type:"video/mp4", duration:5.56 },
+  { name:"gizmo-noaudio.mp4", type:"video/mp4", duration:5.56 },
+  { name:"gizmo.webm", type:'video/webm; codecs="vp9,opus"', duration:5.56 },
+  { name:"gizmo-noaudio.webm", type:'video/webm; codecs="vp9"', duration:5.56 }
+];
+
+function checkMetadata(msg, e, test) {
+  if (test.width) {
+    is(e.videoWidth, test.width, msg + " video width");
+  }
+  if (test.height) {
+    is(e.videoHeight, test.height, msg + " video height");
+  }
+  if (test.duration) {
+    ok(Math.abs(e.duration - test.duration) < 0.1,
+       msg + " duration (" + e.duration + ") should be around " + test.duration);
+  }
+  is(!!test.keys, SpecialPowers.do_lookupGetter(e, "isEncrypted").apply(e),
+     msg + " isEncrypted should be true if we have decryption keys");
+}
+
+// Returns the first test from candidates array which we can play with the
+// installed video backends.
+function getPlayableVideo(candidates) {
+  var resources = getPlayableVideos(candidates);
+  if (resources.length > 0)
+    return resources[0];
+  return null;
+}
+
+function getPlayableVideos(candidates) {
+  var v = manifestVideo();
+  return candidates.filter(function(x){return /^video/.test(x.type) && v.canPlayType(x.type);});
+}
+
+function getPlayableAudio(candidates) {
+  var v = manifestVideo();
+  var resources = candidates.filter(function(x){return /^audio/.test(x.type) && v.canPlayType(x.type);});
+  if (resources.length > 0)
+    return resources[0];
+  return null;
+}
+
+// Returns the type of element that should be created for the given mimetype.
+function getMajorMimeType(mimetype) {
+  if (/^video/.test(mimetype)) {
+    return "video";
+  } else {
+    return "audio";
+  }
+}
+
+// Force releasing decoder to avoid timeout in waiting for decoding resource.
+function removeNodeAndSource(n) {
+  n.remove();
+  // Clearing srcObject and/or src will actually set them to some default
+  // URI that will fail to load, so make sure we don't produce a spurious
+  // bailing error.
+  n.onerror = null;
+  // reset |srcObject| first since it takes precedence over |src|.
+  n.srcObject = null;
+  n.src = "";
+  while (n.firstChild) {
+    n.removeChild(n.firstChild);
+  }
+}
+
+function once(target, name, cb) {
+  var p = new Promise(function(resolve, reject) {
+    target.addEventListener(name, function onceEvent() {
+      target.removeEventListener(name, onceEvent);
+      resolve();
+    });
+  });
+  if (cb) {
+    p.then(cb);
+  }
+  return p;
+}
+
+function TimeStamp(token) {
+  function pad(x) {
+    return (x < 10) ? "0" + x : x;
+  }
+  var now = new Date();
+  var ms = now.getMilliseconds();
+  var time = "[" +
+             pad(now.getHours()) + ":" +
+             pad(now.getMinutes()) + ":" +
+             pad(now.getSeconds()) + "." +
+             ms +
+             "]" +
+             (ms < 10 ? "  " : (ms < 100 ? " " : ""));
+  return token ? (time + " " + token) : time;
+}
+
+function Log(token, msg) {
+  info(TimeStamp(token) + " " + msg);
+}
+
+// Number of tests to run in parallel.
+var PARALLEL_TESTS = 2;
+
+// Prefs to set before running tests.  Use this to improve coverage of
+// conditions that might not otherwise be encountered on the test data.
+var gTestPrefs = [
+  ['media.recorder.max_memory', 1024],
+];
+
+// When true, we'll loop forever on whatever test we run. Use this to debug
+// intermittent test failures.
+const DEBUG_TEST_LOOP_FOREVER = false;
+
+// Manages a run of media tests. Runs them in chunks in order to limit
+// the number of media elements/threads running in parallel. This limits peak
+// memory use, particularly on Linux x86 where thread stacks use 10MB of
+// virtual address space.
+// Usage:
+//   1. Create a new MediaTestManager object.
+//   2. Create a test startTest function. This takes a test object and a token,
+//      and performs anything necessary to start the test. The test object is an
+//      element in one of the g*Tests above. Your startTest function must call
+//      MediaTestManager.start(token) if it starts a test. The test object is
+//      guaranteed to be playable by our supported decoders; you don't need to
+//      check canPlayType.
+//   3. When your tests finishes, call MediaTestManager.finished(), passing
+//      the token back to the manager. The manager may either start the next run
+//      or end the mochitest if all the tests are done.
+function MediaTestManager() {
+
+  // Return how many seconds elapsed since |begin|.
+  function elapsedTime(begin) {
+    var end = new Date();
+    return (end.getTime() - begin.getTime()) / 1000;
+  }
+  // Sets up a MediaTestManager to runs through the 'tests' array, which needs
+  // to be one of, or have the same fields as, the g*Test arrays of tests. Uses
+  // the user supplied 'startTest' function to initialize the test. This
+  // function must accept two arguments, the test entry from the 'tests' array,
+  // and a token. Call MediaTestManager.started(token) if you start the test,
+  // and MediaTestManager.finished(token) when the test finishes. You don't have
+  // to start every test, but if you call started() you *must* call finish()
+  // else you'll timeout.
+  this.runTests = function(tests, startTest) {
+    this.startTime = new Date();
+    SimpleTest.info("Started " + this.startTime + " (" + this.startTime.getTime()/1000 + "s)");
+    this.testNum = 0;
+    this.tests = tests;
+    this.startTest = startTest;
+    this.tokens = [];
+    this.isShutdown = false;
+    this.numTestsRunning = 0;
+    this.handlers = {};
+
+    // Always wait for explicit finish.
+    SimpleTest.waitForExplicitFinish();
+    SpecialPowers.pushPrefEnv({'set': gTestPrefs}, (function() {
+      this.nextTest();
+    }).bind(this));
+
+    SimpleTest.registerCleanupFunction(function() {
+      if (this.tokens.length > 0) {
+        info("Test timed out. Remaining tests=" + this.tokens);
+      }
+      for (var token of this.tokens) {
+        var handler = this.handlers[token];
+        if (handler && handler.ontimeout) {
+          handler.ontimeout();
+        }
+      }
+    }.bind(this));
+  }
+
+  // Registers that the test corresponding to 'token' has been started.
+  // Don't call more than once per token.
+  this.started = function(token, handler) {
+    this.tokens.push(token);
+    this.numTestsRunning++;
+    this.handlers[token] = handler;
+    is(this.numTestsRunning, this.tokens.length,
+       "[started " + token + " t=" + elapsedTime(this.startTime) + "] Length of array should match number of running tests");
+  }
+
+  // Registers that the test corresponding to 'token' has finished. Call when
+  // you've finished your test. If all tests are complete this will finish the
+  // run, otherwise it may start up the next run. It's ok to call multiple times
+  // per token.
+  this.finished = function(token) {
+    var i = this.tokens.indexOf(token);
+    if (i != -1) {
+      // Remove the element from the list of running tests.
+      this.tokens.splice(i, 1);
+    }
+
+    info("[finished " + token + "] remaining= " + this.tokens);
+    this.numTestsRunning--;
+    is(this.numTestsRunning, this.tokens.length,
+       "[finished " + token + " t=" + elapsedTime(this.startTime) + "] Length of array should match number of running tests");
+    if (this.tokens.length < PARALLEL_TESTS) {
+      this.nextTest();
+    }
+  }
+
+  // Starts the next batch of tests, or finishes if they're all done.
+  // Don't call this directly, call finished(token) when you're done.
+  this.nextTest = function() {
+    while (this.testNum < this.tests.length && this.tokens.length < PARALLEL_TESTS) {
+      var test = this.tests[this.testNum];
+      var token = (test.name ? (test.name + "-"): "") + this.testNum;
+      this.testNum++;
+
+      if (DEBUG_TEST_LOOP_FOREVER && this.testNum == this.tests.length) {
+        this.testNum = 0;
+      }
+
+      // Ensure we can play the resource type.
+      if (test.type && !document.createElement('video').canPlayType(test.type))
+        continue;
+
+      // Do the init. This should start the test.
+      this.startTest(test, token);
+    }
+
+    if (this.testNum == this.tests.length &&
+        !DEBUG_TEST_LOOP_FOREVER &&
+        this.tokens.length == 0 &&
+        !this.isShutdown)
+    {
+      this.isShutdown = true;
+      if (this.onFinished) {
+        this.onFinished();
+      }
+      var onCleanup = function() {
+        var end = new Date();
+        SimpleTest.info("Finished at " + end + " (" + (end.getTime() / 1000) + "s)");
+        SimpleTest.info("Running time: " + elapsedTime(this.startTime) + "s");
+        SimpleTest.finish();
+      }.bind(this);
+      mediaTestCleanup(onCleanup);
+      return;
+    }
+  }
+}
+
+// Ensures we've got no active video or audio elements in the document, and
+// forces a GC to release the address space reserved by the decoders' threads'
+// stacks.
+function mediaTestCleanup(callback) {
+    var V = document.getElementsByTagName("video");
+    for (i=0; i<V.length; i++) {
+      removeNodeAndSource(V[i]);
+      V[i] = null;
+    }
+    var A = document.getElementsByTagName("audio");
+    for (i=0; i<A.length; i++) {
+      removeNodeAndSource(A[i]);
+      A[i] = null;
+    }
+    SpecialPowers.exactGC(callback);
+}
+
+// B2G emulator and Android 2.3 are condidered slow platforms
+function isSlowPlatform() {
+  return SpecialPowers.Services.appinfo.name == "B2G" || getAndroidVersion() == 10;
+}
+
+// Could be undefined in a page opened by the parent test page
+// like file_access_controls.html.
+if ("SimpleTest" in window) {
+  SimpleTest.requestFlakyTimeout("untriaged");
+
+  // Register timeout function to dump debugging logs.
+  SimpleTest.registerTimeoutFunction(function() {
+    for (var v of document.getElementsByTagName("video")) {
+      v.mozDumpDebugInfo();
+    }
+    for (var a of document.getElementsByTagName("audio")) {
+      a.mozDumpDebugInfo();
+    }
+  });
+}