Now catches the error message from RTCPeerConnection and createAnswer/Offer

chrome/test/data/webrtc/manual/peerconnection_manual.js

Index: chrome/test/data/webrtc/manual/peerconnection_manual.js
diff --git a/chrome/test/data/webrtc/manual/peerconnection_manual.js b/chrome/test/data/webrtc/manual/peerconnection_manual.js
index 2ee156c0a7c976fead9ef50014fc1e1d00152d0f..24fdc1454509d5840a1b0fee0966889608ad6187 100644
--- a/chrome/test/data/webrtc/manual/peerconnection_manual.js
+++ b/chrome/test/data/webrtc/manual/peerconnection_manual.js
@@ -432,13 +432,13 @@ function handleMessage(peerConnection, message) {
     peerConnection.setRemoteDescription(
         session_description,
         function() { success_('setRemoteDescription'); },
-        function() { failure_('setRemoteDescription'); });
+        function(error) { failure_('setRemoteDescription', error); });
     if (session_description.type == 'offer') {
       print_('createAnswer with constraints: ' +
             JSON.stringify(global.createAnswerConstraints, null, ' '));
       peerConnection.createAnswer(
         setLocalAndSendMessage_,
-        function() { failure_('createAnswer'); },
+        function(error) { failure_('createAnswer', error); },
         global.createAnswerConstraints);
     }
     return;
@@ -470,7 +470,7 @@ function setupCall(peerConnection) {
         JSON.stringify(global.createOfferConstraints, null, ' '));
   peerConnection.createOffer(
       setLocalAndSendMessage_,
-      function() { failure_('createOffer'); },
+      function(error) { failure_('createOffer', error); },
       global.createOfferConstraints);
 }
 
@@ -892,7 +892,7 @@ function success_(method) {
 
 /** @private */
 function failure_(method, error) {
-  error_(method + '() failed: ' + error);
+  error_(method + '() failed: ' + JSON.stringify(error));
 }
 
 /** @private */
@@ -908,7 +908,7 @@ function setLocalAndSendMessage_(session_description) {
   global.peerConnection.setLocalDescription(
     session_description,
     function() { success_('setLocalDescription'); },
-    function() { failure_('setLocalDescription'); });
+    function(error) { failure_('setLocalDescription', error); });
   print_('Sending SDP message:\n' + session_description.sdp);
   sendToPeer(global.remotePeerId, JSON.stringify(session_description));
 }