Cleaned up WebRTC browser test js, removed unneeded stuff.

chrome/test/data/webrtc/jsep01_call.js

-/**
- * Copyright (c) 2012 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-// TODO(phoglund): merge into message_handling.js.
-
-/** @private */
-var gHasSeenCryptoInSdp = 'no-crypto-seen';
-
-// Public interface towards the other javascript files, such as
-// message_handling.js. The contract for these functions is described in
-// message_handling.js.
-
-function receiveOffer(peerConnection, offer, constraints, callback) {
-  var sessionDescription = new RTCSessionDescription(offer);
-  peerConnection.setRemoteDescription(
-      sessionDescription,
-      function() { success_('setRemoteDescription'); },
-      function() { failure_('setRemoteDescription'); });
-
-  peerConnection.createAnswer(
-      function(answer) {
-        success_('createAnswer');
-        setLocalDescription(peerConnection, answer);
-        callback(answer);
-      },
-      function() { failure_('createAnswer'); },
-      constraints);
-}
-
-function receiveAnswer(peerConnection, answer, callback) {
-  var sessionDescription = new RTCSessionDescription(answer);
-  peerConnection.setRemoteDescription(
-      sessionDescription,
-      function() {
-        success_('setRemoteDescription');
-        callback();
-      },
-      function() { failure_('setRemoteDescription'); });
-}
-
-function createPeerConnection(stun_server, useRtpDataChannels) {
-  servers = {iceServers: [{url: 'stun:' + stun_server}]};
-  try {
-    var constraints = { optional: [{ RtpDataChannels: useRtpDataChannels }]};
-    peerConnection = new RTCPeerConnection(servers, constraints);
-  } catch (exception) {
-    throw failTest('Failed to create peer connection: ' + exception);
-  }
-  peerConnection.onaddstream = addStreamCallback_;
-  peerConnection.onremovestream = removeStreamCallback_;
-  peerConnection.onicecandidate = iceCallback_;
-  return peerConnection;
-}
-
-function createOffer(peerConnection, constraints, callback) {
-  peerConnection.createOffer(
-      function(localDescription) {
-        success_('createOffer');
-        setLocalDescription(peerConnection, localDescription);
-        callback(localDescription);
-      },
-      function() { failure_('createOffer'); },
-      constraints);
-}
-
-function hasSeenCryptoInSdp() {
-  returnToTest(gHasSeenCryptoInSdp);
-}
-
-// Internals.
-/** @private */
-function success_(method) {
-  debug(method + '(): success.');
-}
-
-/** @private */
-function failure_(method, error) {
-  throw failTest(method + '() failed: ' + error);
-}
-
-/** @private */
-function iceCallback_(event) {
-  if (event.candidate)
-    sendIceCandidate(event.candidate);
-}
-
-/** @private */
-function setLocalDescription(peerConnection, sessionDescription) {
-  if (sessionDescription.sdp.search('a=crypto') != -1 ||
-      sessionDescription.sdp.search('a=fingerprint') != -1)
-    gHasSeenCryptoInSdp = 'crypto-seen';
-
-  peerConnection.setLocalDescription(
-    sessionDescription,
-    function() { success_('setLocalDescription'); },
-    function() { failure_('setLocalDescription'); });
-}
-
-/** @private */
-function addStreamCallback_(event) {
-  debug('Receiving remote stream...');
-  var videoTag = document.getElementById('remote-view');
-  attachMediaStream(videoTag, event.stream);
-}
-
-/** @private */
-function removeStreamCallback_(event) {
-  debug('Call ended.');
-  document.getElementById('remote-view').src = '';
-}