Add separate nonce version of connect call.

remoting/client/appengine/static_files/chromoting_session.js

Index: remoting/client/appengine/static_files/chromoting_session.js
diff --git a/remoting/client/appengine/static_files/chromoting_session.js b/remoting/client/appengine/static_files/chromoting_session.js
index 7c2a8b9fd3da6e84f8527ef036a5b04cc500b46d..d89ce6828fc4e393528b50c7acbca003c5a99b76 100644
--- a/remoting/client/appengine/static_files/chromoting_session.js
+++ b/remoting/client/appengine/static_files/chromoting_session.js
@@ -52,8 +52,8 @@ function registerConnection() {
         var clientjid = xhr.responseText;
 
         chromoting.plugin.sendIq = sendIq;
-        // TODO:(jamiewalch): Pass in the correct nonce.
-        chromoting.plugin.connectSandboxed(clientjid, chromoting.hostjid, '');
+        chromoting.plugin.connect(chromoting.hostjid, "AUTHENTICATE",
+                                  clientjid);
         // TODO(ajwong): This should just be feedIq();
         window.setTimeout(feedIq, 1000);
       } else {
@@ -128,11 +128,12 @@ function init() {
   // TODO(garykac): Clean exit if |connect| isn't a function.
   if (typeof plugin.connect === 'function') {
     if (chromoting.connectMethod == "sandboxed") {
+      plugin.setSandboxed(true);
       registerConnection();
     } else {
-      // TODO:(jamiewalch): Pass in the correct nonce.
-      plugin.connect(chromoting.username, chromoting.hostjid,
-                     chromoting.xmppAuthToken, '');
+      plugin.setSandboxed(false);
+      plugin.connect(chromoting.hostjid, "AUTHENTICATE",
+                     chromoting.username, chromoting.xmppAuthToken);
     }
   } else {
     addToDebugLog('ERROR: chromoting plugin not loaded');