chat: Update to the new api.

MultiPart: 2/4
Change-Id: I30e814876a0317dd17f1f50a11d4833dfc6d9b6b
diff --git a/.jshintignore b/.jshintignore
index 334994a..12bd653 100644
--- a/.jshintignore
+++ b/.jshintignore
@@ -1,3 +1,4 @@
 build
 node_modules
 clients/web/js/v.io/x/chat/vdl
+clients/web/js/chat/vdl
diff --git a/clients/web/js/channel.js b/clients/web/js/channel.js
index 51d5acc..181cb61 100644
--- a/clients/web/js/channel.js
+++ b/clients/web/js/channel.js
@@ -76,16 +76,17 @@
 
   // The implementation of sendMessage emits the message with the sender's
   // name and timestamp.
-  Service.prototype.sendMessage = function(ctx, text) {
+  Service.prototype.sendMessage = function(ctx, serverCall, text) {
+    var secCall = serverCall.securityCall;
     that.emit('message', {
-      sender: util.firstShortName(ctx.remoteBlessingStrings),
+      sender: util.firstShortName(secCall.remoteBlessingStrings),
       text: text,
       timestamp: new Date()
     });
   };
 
   // openAuthorizer allows RPCs from all clients.
-  var openAuthorizer = function(secCall, cb){ cb(null); };
+  var openAuthorizer = function(ctx, secCall, cb){ cb(null); };
   var options = {authorizer: openAuthorizer};
 
   var that = this;