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+<!DOCTYPE HTML>
+<html>
+<head>
+  <script type="application/javascript" src="pc.js"></script>
+  <script type="application/javascript" src="/tests/dom/canvas/test/captureStream_common.js"></script>
+</head>
+<body>
+<pre id="test">
+<script type="application/javascript">
+createHTML({
+  bug: "1219711",
+  title: "Disabling locally should be reflected remotely"
+});
+
+runNetworkTest(async () => {
+  const test = new PeerConnectionTest();
+
+  await pushPrefs(
+    ["media.getusermedia.camera.stop_on_disable.enabled", true],
+    ["media.getusermedia.camera.stop_on_disable.delay_ms", 0],
+    ["media.getusermedia.microphone.stop_on_disable.enabled", true],
+    ["media.getusermedia.microphone.stop_on_disable.delay_ms", 0],
+    // Always use fake tracks since we depend on video to be somewhat green and
+    // audio to have a large 1000Hz component (or 440Hz if using fake devices).
+    ['media.audio_loopback_dev', ''],
+    ['media.video_loopback_dev', ''],
+    ['media.navigator.streams.fake', true]);
+
+  test.setMediaConstraints([{audio: true, video: true}], []);
+  test.chain.append([
+    function CHECK_ASSUMPTIONS() {
+      is(test.pcLocal.localMediaElements.length, 2,
+         "pcLocal should have one media element");
+      is(test.pcRemote.remoteMediaElements.length, 2,
+         "pcRemote should have one media element");
+      is(test.pcLocal._pc.getLocalStreams().length, 1,
+         "pcLocal should have one stream");
+      is(test.pcRemote._pc.getRemoteStreams().length, 1,
+         "pcRemote should have one stream");
+    },
+    async function CHECK_VIDEO() {
+      const h = new CaptureStreamTestHelper2D();
+      const localVideo = test.pcLocal.localMediaElements
+        .find(e => e instanceof HTMLVideoElement);
+      const remoteVideo = test.pcRemote.remoteMediaElements
+        .find(e => e instanceof HTMLVideoElement);
+      // We check a pixel somewhere away from the top left corner since
+      // MediaEngineFake puts semi-transparent time indicators there.
+      const offsetX = 50;
+      const offsetY = 50;
+      const threshold = 128;
+
+      // We're regarding black as disabled here, and we're setting the alpha
+      // channel of the pixel to 255 to disregard alpha when testing.
+      const checkVideoEnabled = video => h.waitForPixel(video,
+        px => (px[3] = 255, h.isPixelNot(px, h.black, threshold)),
+        { offsetX, offsetY }
+      );
+      const checkVideoDisabled = video => h.waitForPixel(video,
+        px => (px[3] = 255, h.isPixel(px, h.black, threshold)),
+        { offsetX, offsetY }
+      );
+
+      info("Checking local video enabled");
+      await checkVideoEnabled(localVideo);
+      info("Checking remote video enabled");
+      await checkVideoEnabled(remoteVideo);
+
+      info("Disabling original");
+      test.pcLocal._pc.getLocalStreams()[0].getVideoTracks()[0].enabled = false;
+
+      info("Checking local video disabled");
+      await checkVideoDisabled(localVideo);
+      info("Checking remote video disabled");
+      await checkVideoDisabled(remoteVideo);
+    },
+    async function CHECK_AUDIO() {
+      const ac = new AudioContext();
+      const localAnalyser = new AudioStreamAnalyser(ac, test.pcLocal._pc.getLocalStreams()[0]);
+      const remoteAnalyser = new AudioStreamAnalyser(ac, test.pcRemote._pc.getRemoteStreams()[0]);
+
+      const checkAudio = (analyser, fun) => analyser.waitForAnalysisSuccess(fun);
+
+      const freq = localAnalyser.binIndexForFrequency(TEST_AUDIO_FREQ);
+      const checkAudioEnabled = analyser =>
+        checkAudio(analyser, array => array[freq] > 200);
+      const checkAudioDisabled = analyser =>
+        checkAudio(analyser, array => array[freq] < 50);
+
+      info("Checking local audio enabled");
+      await checkAudioEnabled(localAnalyser);
+      info("Checking remote audio enabled");
+      await checkAudioEnabled(remoteAnalyser);
+
+      test.pcLocal._pc.getLocalStreams()[0].getAudioTracks()[0].enabled = false;
+
+      info("Checking local audio disabled");
+      await checkAudioDisabled(localAnalyser);
+      info("Checking remote audio disabled");
+      await checkAudioDisabled(remoteAnalyser);
+    },
+  ]);
+  await test.run();
+});
+</script>
+</pre>
+</body>
+</html>