diff --git a/dom/media/PeerConnection.js b/dom/media/PeerConnection.js
index 367d1d789ad5..0716f9db6c12 100644
--- a/dom/media/PeerConnection.js
+++ b/dom/media/PeerConnection.js
@@ -291,7 +291,9 @@ PeerConnection.prototype = {
    * call _executeNext, false if it doesn't have a callback.
    */
   _queueOrRun: function(obj) {
-    this._checkClosed();
+    if (this._closed) {
+	return;
+    }
     if (!this._pending) {
       if (obj.type !== undefined) {
         this._pendingType = obj.type;
@@ -354,16 +356,6 @@ PeerConnection.prototype = {
     return true;
   },
 
-  // Ideally, this should be of the form _checkState(state),
-  // where the state is taken from an enumeration containing
-  // the valid peer connection states defined in the WebRTC
-  // spec. See Bug 831756.
-  _checkClosed: function() {
-    if (this._closed) {
-      throw new Error ("Peer connection is closed");
-    }
-  },
-
   createOffer: function(onSuccess, onError, constraints) {
     if (!constraints) {
       constraints = {};
@@ -416,9 +408,6 @@ PeerConnection.prototype = {
   },
 
   setLocalDescription: function(desc, onSuccess, onError) {
-    // TODO -- if we have two setLocalDescriptions in the
-    // queue,this code overwrites the callbacks for the first
-    // one with the callbacks for the second one. See Bug 831759.
     this._onSetLocalDescriptionSuccess = onSuccess;
     this._onSetLocalDescriptionFailure = onError;
 
@@ -446,9 +435,6 @@ PeerConnection.prototype = {
   },
 
   setRemoteDescription: function(desc, onSuccess, onError) {
-    // TODO -- if we have two setRemoteDescriptions in the
-    // queue, this code overwrites the callbacks for the first
-    // one with the callbacks for the second one. See Bug 831759.
     this._onSetRemoteDescriptionSuccess = onSuccess;
     this._onSetRemoteDescriptionFailure = onError;
 
@@ -522,17 +508,14 @@ PeerConnection.prototype = {
   },
 
   get localStreams() {
-    this._checkClosed();
     return this._pc.localStreams;
   },
 
   get remoteStreams() {
-    this._checkClosed();
     return this._pc.remoteStreams;
   },
 
   get localDescription() {
-    this._checkClosed();
     let sdp = this._pc.localDescription;
     if (sdp.length == 0) {
       return null;
@@ -544,7 +527,6 @@ PeerConnection.prototype = {
   },
 
   get remoteDescription() {
-    this._checkClosed();
     let sdp = this._pc.remoteDescription;
     if (sdp.length == 0) {
       return null;
@@ -556,7 +538,6 @@ PeerConnection.prototype = {
   },
 
   createDataChannel: function(label, dict) {
-    this._checkClosed();
     if (dict &&
         dict.maxRetransmitTime != undefined &&
         dict.maxRetransmitNum != undefined) {
@@ -574,8 +555,6 @@ PeerConnection.prototype = {
     }
 
     // Synchronous since it doesn't block.
-    // TODO -- this may need to be revisited, based on how the
-    // spec ends up defining data channel handling
     let channel = this._pc.createDataChannel(
       label, type, dict.outOfOrderAllowed, dict.maxRetransmitTime,
       dict.maxRetransmitNum
@@ -595,7 +574,7 @@ PeerConnection.prototype = {
   }
 };
 
-// This is a separate object because we don't want to expose it to DOM.
+// This is a seperate object because we don't want to expose it to DOM.
 function PeerConnectionObserver(dompc) {
   this._dompc = dompc;
 }
diff --git a/dom/media/tests/mochitest/Makefile.in b/dom/media/tests/mochitest/Makefile.in
index a17c63836ae1..2c15cf758242 100644
--- a/dom/media/tests/mochitest/Makefile.in
+++ b/dom/media/tests/mochitest/Makefile.in
@@ -19,7 +19,6 @@ MOCHITEST_FILES = \
   test_peerConnection_basicAudioVideo.html \
   test_peerConnection_basicAudioVideoCombined.html \
   test_peerConnection_basicVideo.html \
-  test_peerConnection_bug827843.html \
   head.js \
   mediaStreamPlayback.js \
   pc.js \
diff --git a/dom/media/tests/mochitest/test_peerConnection_bug827843.html b/dom/media/tests/mochitest/test_peerConnection_bug827843.html
deleted file mode 100644
index 31c68a8e3e63..000000000000
--- a/dom/media/tests/mochitest/test_peerConnection_bug827843.html
+++ /dev/null
@@ -1,115 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=827843
--->
-<head>
-  <meta charset="utf-8">
-  <title>Bug 827843: Ensure that localDescription and remoteDescription are null after close</title>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <script type="application/javascript" src="head.js"></script>
-  <script type="application/javascript" src="pc.js"></script>
-</head>
-<body>
-<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=827843">Make sure functions act correctly after close()</a>
-<p id="display"></p>
-<div id="content" style="display: none">
-  <audio id="audioPCLocal" controls></audio>
-  <audio id="audioPCRemote" controls></audio>
-  <audio id="audioLocal" controls></audio>
-</div>
-<pre id="test">
-<script type="application/javascript">
-  var audioLocal;
-  var audioPCLocal;
-  var audioPCRemote;
-
-  var pcLocal;
-  var pcRemote;
-
-  var test_data = {
-    pcLocal: { audio: [], video: []},
-    pcRemote: { audio: [], video: []}
-  };
-
-  runTest(function () {
-    audioLocal = document.getElementById("audioLocal");
-    audioPCLocal = document.getElementById("audioPCLocal");
-    audioPCRemote = document.getElementById("audioPCRemote");
-
-    pcLocal = new mozRTCPeerConnection();
-    pcRemote = new mozRTCPeerConnection();
-
-    pcLocal.onaddstream = function (aObj) {
-      test_data.pcLocal[aObj.type].push(aObj.stream);
-
-      if (aObj.type === "audio") {
-        audioPCRemote.mozSrcObject = aObj.stream;
-        audioPCRemote.play();
-      }
-    };
-
-    pcRemote.onaddstream = function (aObj) {
-      test_data.pcRemote[aObj.type].push(aObj.stream);
-
-      if (aObj.type === "audio") {
-        audioPCLocal.mozSrcObject = aObj.stream;
-        audioPCLocal.play();
-      }
-    };
-
-    navigator.mozGetUserMedia({audio: true, fake: true}, function onSuccess(aLocalInputStream) {
-      pcLocal.addStream(aLocalInputStream);
-
-      navigator.mozGetUserMedia({audio: true, fake: true}, function onSuccess(aRemoteInputStream) {
-        pcRemote.addStream(aRemoteInputStream);
-
-        audioLocal.mozSrcObject = aLocalInputStream;
-        audioLocal.play();
-
-        PeerConnection.handShake(pcLocal, pcRemote, function () {
-
-          /* Check that the SDP is sane to start with */
-          ok(pcLocal.localDescription, "pcLocal.localDescription is not null");
-          is(pcLocal.localDescription.type, "offer", "pcLocal.localDescription type is offer");
-          ok(pcLocal.localDescription.sdp.length > 10, "pcLocal.localDescription body length is plausible");
-
-          ok(pcLocal.remoteDescription, "pcLocal.remoteDescription is not null");
-          is(pcLocal.remoteDescription.type, "answer", "pcLocal.remoteDescription type is answer");
-          ok(pcLocal.remoteDescription.sdp.length > 10, "pcLocal.remoteDescription body length is plausible");
-
-          ok(pcRemote.localDescription, "pcRemote.localDescription is not null");
-          is(pcRemote.localDescription.type, "answer", "pcRemote.localDescription type is answer");
-          ok(pcRemote.localDescription.sdp.length > 10, "pcRemote.localDescription body length is plausible");
-
-          ok(pcRemote.remoteDescription, "pcRemote.remoteDescription is not null");
-          is(pcRemote.remoteDescription.type, "offer", "pcRemote.remoteDescription type is offer");
-          ok(pcRemote.remoteDescription.sdp.length > 10, "pcRemote.remoteDescription body length is plausible");
-
-          pcLocal.close();
-          var exception = null;
-          try  { description = pcLocal.localDescription; } catch (e) { exception = e; }
-          ok(exception, "attempt to access pcLocal.localDescription after close throws exception");
-          exception = null;
-          try  { description = pcLocal.remoteDescription; } catch (e) { exception = e; }
-          ok(exception, "attempt to access pcLocal.remoteDescription after close throws exception");
-
-          pcRemote.close();
-          exception = null;
-          try  { description = pcRemote.localDescription; } catch (e) { exception = e; }
-          ok(exception, "attempt to access pcRemote.localDescription after close throws exception");
-          exception = null;
-          try  { description = pcRemote.remoteDescription; } catch (e) { exception = e; }
-          ok(exception, "attempt to access pcRemote.remoteDescription after close throws exception");
-
-          SimpleTest.finish();
-        });
-      }, unexpectedCallbackAndFinish);
-    }, unexpectedCallbackAndFinish);
-  });
-
-</script>
-</pre>
-</body>
-</html>