webrtc insertable streams: remove legacy API

removes the legacy API that was only available under the field trial

BUG=chromium:1119801

Change-Id: I83785628878d95762001cb5aaa33abd9834df116
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3020106
Reviewed-by: Nate Chapin <japhet@chromium.org>
Reviewed-by: Guido Urdaneta <guidou@chromium.org>
Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com>
Cr-Commit-Position: refs/heads/master@{#903803}
diff --git a/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-audio.https.html b/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-audio.https.html
index 04282d0..ba5000d 100644
--- a/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-audio.https.html
+++ b/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-audio.https.html
@@ -191,51 +191,6 @@
       streams.readable.pipeThrough(transformer).pipeTo(streams.writable));
 }, 'Enqueuing the same frame twice fails');
 
-promise_test(async t => {
-  const caller = new RTCPeerConnection({forceEncodedAudioInsertableStreams:true});
-  t.add_cleanup(() => caller.close());
-  const callee = new RTCPeerConnection({forceEncodedAudioInsertableStreams:true});
-  t.add_cleanup(() => callee.close());
-
-  const stream = await navigator.mediaDevices.getUserMedia({audio:true});
-  const audioTrack = stream.getAudioTracks()[0];
-  t.add_cleanup(() => audioTrack.stop());
-
-  const audioSender = caller.addTrack(audioTrack)
-  const senderStreams = audioSender.createEncodedStreams();
-  const senderReader = senderStreams.readable.getReader();
-  const senderWriter = senderStreams.writable.getWriter();
-
-  let sentFrameInfo = null;
-  const ontrackPromise = new Promise(resolve => {
-    callee.ontrack = e => {
-      const audioReceiver = e.receiver;
-
-      const receiverStreams = audioReceiver.createEncodedStreams();
-      const receiverReader = receiverStreams.readable.getReader();
-      receiverReader.read().then(t.step_func(receivedResult => {
-        assert_true(areFrameInfosEqual(receivedResult.value, sentFrameInfo));
-        resolve();
-      }));
-    }
-  });
-
-  exchangeIceCandidates(caller, callee);
-  await exchangeOfferAnswer(caller, callee);
-
-  // Pass frames as they come from the encoder.
-  const result = await senderReader.read()
-  sentFrameInfo = {
-    timestamp: result.value.timestamp,
-    data: result.value.data,
-    metadata: result.value.getMetadata(),
-    getMetadata() { return this.metadata; }
-  }
-  senderWriter.write(result.value);
-
-  return ontrackPromise;
-}, 'Legacy API works');
-
 </script>
 </body>
 </html>
diff --git a/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-legacy.https.html b/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-legacy.https.html
deleted file mode 100644
index 3138f18..0000000
--- a/webrtc-encoded-transform/RTCPeerConnection-insertable-streams-legacy.https.html
+++ /dev/null
@@ -1,115 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<title>RTCPeerConnection Insertable Streams - Legacy API</title>
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="../webrtc/RTCPeerConnection-helper.js"></script>
-<script src="./RTCPeerConnection-insertable-streams.js"></script>
-</head>
-<body>
-<script>
-async function testNormalDataFlowWithInsertableStreamsForOtherKind(t, normalKind) {
-  const flowAudio = (normalKind == 'audio');
-  const pcConfig = flowAudio
-    ? {forceEncodedVideoInsertableStreams:true}
-    : {forceEncodedAudioInsertableStreams:true};
-  const caller = new RTCPeerConnection(pcConfig);
-  t.add_cleanup(() => caller.close());
-  const callee = new RTCPeerConnection(pcConfig);
-  t.add_cleanup(() => callee.close());
-
-  const stream = await navigator.mediaDevices.getUserMedia(
-    {audio: flowAudio, video: !flowAudio});
-  const track = stream.getTracks()[0];
-  t.add_cleanup(() => track.stop());
-
-  const sender = caller.addTrack(track, stream);
-  const ontrackPromise = new Promise((resolve,reject) => {
-    callee.ontrack =  t.step_func(async e => {
-      let numGetStats = 0;
-      const intervalId = window.setInterval(async ()=> {
-        let statsReport = await callee.getStats();
-        statsReport.forEach(report => {
-          if (report.type == 'inbound-rtp' &&
-              report.kind == normalKind &&
-              report.bytesReceived > 0) {
-            clearInterval(intervalId);
-            resolve();
-            return;
-          }
-        });
-        if (++numGetStats >= 60) {
-          clearInterval(intervalId);
-          reject('No bytes received.');
-          return;
-        }
-      }, 50);
-    });
-  });
-
-  exchangeIceCandidates(caller, callee);
-  await exchangeOfferAnswer(caller, callee);
-
-  return ontrackPromise;
-}
-
-promise_test(t => {
-  return testNormalDataFlowWithInsertableStreamsForOtherKind(t, 'audio');
-}, 'Legacy: Audio flows when insertable streams is enabled for video and disabled for audio.');
-
-promise_test(t => {
-  return testNormalDataFlowWithInsertableStreamsForOtherKind(t, 'video');
-}, 'Legacy: Video flows when insertable streams is enabled for audio and disabled for audio.');
-
-promise_test(async t => {
-  const caller = new RTCPeerConnection({encodedInsertableStreams:true});
-  t.add_cleanup(() => caller.close());
-  const callee = new RTCPeerConnection({encodedInsertableStreams:true});
-  t.add_cleanup(() => callee.close());
-
-  const stream = await navigator.mediaDevices.getUserMedia({video:true});
-  const videoTrack = stream.getVideoTracks()[0];
-  t.add_cleanup(() => videoTrack.stop());
-
-  const videoSender = caller.addTrack(videoTrack)
-  const senderStreams = videoSender.createEncodedStreams();
-  const senderReader = senderStreams.readable.getReader();
-  const senderWriter = senderStreams.writable.getWriter();
-
-  let sentFrameInfo = null;
-  const ontrackPromise = new Promise(resolve => {
-    callee.ontrack = t.step_func(async e => {
-      const videoReceiver = e.receiver;
-
-      const receiverStreams = videoReceiver.createEncodedStreams();
-      const receiverReader = receiverStreams.readable.getReader();
-      receiverReader.read().then(t.step_func(receivedResult => {
-        assert_true(areFrameInfosEqual(receivedResult.value, sentFrameInfo));
-        verifyNonstandardAdditionalDataIfPresent(receivedResult.value);
-        resolve();
-      }));
-    });
-  });
-
-  exchangeIceCandidates(caller, callee);
-  await exchangeOfferAnswer(caller, callee);
-
-  // Pass frames as they come from the encoder.
-  const result = await senderReader.read();
-  verifyNonstandardAdditionalDataIfPresent(result.value);
-  sentFrameInfo = {
-    timestamp: result.value.timestamp,
-    type: result.value.type,
-    data: result.value.data,
-    metadata: result.value.getMetadata(),
-    getMetadata() { return this.metadata; }
-  }
-  senderWriter.write(result.value);
-
-  return ontrackPromise;
-}, 'Legacy API works');
-
-</script>
-</body>
-</html>