p2b: update to match new api

MultiPart: 3/4
Change-Id: Ia29fcac0cbde03ad016ab4d1d2f9e29d231ca218
diff --git a/browser/services/pipe-to-browser-server.js b/browser/services/pipe-to-browser-server.js
index 9848111..04e78f9 100644
--- a/browser/services/pipe-to-browser-server.js
+++ b/browser/services/pipe-to-browser-server.js
@@ -63,9 +63,10 @@
       super();
     }
 
-    pipe(ctx, $stream) {
+    pipe(ctx, serverCall, $stream) {
+      var secCall = serverCall.securityCall;
       return new Promise(function(resolve, reject) {
-        log.debug('received pipe request for:', ctx.suffix);
+        log.debug('received pipe request for:', secCall.suffix);
         var numBytesForThisCall = 0;
 
         var bufferStream = new ByteObjectStreamAdapter();
@@ -96,7 +97,7 @@
 
         state.numPipes++;
         try {
-          pipeRequestHandler(ctx.suffix, stream);
+          pipeRequestHandler(secCall.suffix, stream);
         } catch(e) {
           // TODO(aghassemi) envyor issue #50
           // we want to reject but because of #50 we can't