webrtc wpt: add missing pc.close during cleanup running the html.js/codemod-peerconnection-addcleanup from the tools directory showed some places where a pc.close was missing BUG=836871 Change-Id: I135db200a4269eccfafc43217b66584603101434 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1610767 Commit-Queue: Philipp Hancke <philipp.hancke@googlemail.com> Reviewed-by: Henrik Boström <hbos@chromium.org> Cr-Commit-Position: refs/heads/master@{#661283} 
diff --git a/webrtc/RTCDataChannel-send.html b/webrtc/RTCDataChannel-send.html index 76d3524..4565a83 100644 --- a/webrtc/RTCDataChannel-send.html +++ b/webrtc/RTCDataChannel-send.html 
@@ -300,6 +300,7 @@    promise_test(async t => {  let pc1 = new RTCPeerConnection(); + t.add_cleanup(() => pc1.close());  let [channel1, channel2] = await createDataChannelPair(pc1);  let message = 'hello888'; // 8 bytes  while (message.length <= pc1.sctp.maxMessageSize) {