webrtc wpt: add cleanup to close peerconnections adds a pc.close() to all RTCPeerConnections in promise_test and async_test. This is codemod-powered by this: https://github.com/fippo/webrtc-codemods/blob/e844b2467cbb76a231c113366b2451cf248f53bc/wpt-rtcpeerconnection-no-helpers BUG=836871 Change-Id: Iee84ef938bf477a55612b6012c6de464c6aea55b Reviewed-on: https://chromium-review.googlesource.com/1049983 Commit-Queue: Henrik Boström <hbos@chromium.org> Reviewed-by: Henrik Boström <hbos@chromium.org> Cr-Commit-Position: refs/heads/master@{#565591} 
diff --git a/webrtc/RTCPeerConnection-setDescription-transceiver.html b/webrtc/RTCPeerConnection-setDescription-transceiver.html index d19b474..5fc957d 100644 --- a/webrtc/RTCPeerConnection-setDescription-transceiver.html +++ b/webrtc/RTCPeerConnection-setDescription-transceiver.html 
@@ -66,6 +66,7 @@  */  promise_test(t => {  const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close());  const transceiver = pc.addTransceiver('audio');  assert_equals(transceiver.mid, null);   @@ -99,8 +100,11 @@  */  promise_test(t => {  const pc1 = new RTCPeerConnection(); + t.add_cleanup(() => pc1.close());  const pc2 = new RTCPeerConnection();   + t.add_cleanup(() => pc2.close()); +  const transceiver1 = pc1.addTransceiver('audio');  assert_array_equals(pc1.getTransceivers(), [transceiver1]);  assert_array_equals(pc2.getTransceivers(), []); @@ -139,6 +143,7 @@  */  promise_test(t => {  const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close());  const transceiver = pc.addTransceiver('audio');  assert_equals(transceiver.mid, null);   @@ -159,6 +164,7 @@    promise_test(t => {  const pc = new RTCPeerConnection(); + t.add_cleanup(() => pc.close());  const transceiver1 = pc.addTransceiver('audio');  assert_equals(transceiver1.mid, null);   @@ -204,8 +210,11 @@  */  promise_test(t => {  const pc1 = new RTCPeerConnection(); + t.add_cleanup(() => pc1.close());  const pc2 = new RTCPeerConnection();   + t.add_cleanup(() => pc2.close()); +  pc1.addTransceiver('audio');    return pc1.createOffer()