[Extensions Bindings] Move setHandleRequestWithPromise to util

extensions/test/data/keep_alive_client_unittest.js

Index: extensions/test/data/keep_alive_client_unittest.js
diff --git a/extensions/test/data/keep_alive_client_unittest.js b/extensions/test/data/keep_alive_client_unittest.js
index 7b88fb0a8ecdc4e4061555d8063ddc4b172babae..97ddba544d66596bacd1e7d098b27a98b664af56 100644
--- a/extensions/test/data/keep_alive_client_unittest.js
+++ b/extensions/test/data/keep_alive_client_unittest.js
@@ -18,8 +18,8 @@ var shouldSucceed;
 // simple signature.
 var binding = require('binding').Binding.create('serial');
 binding.registerCustomHook(function(bindingsAPI) {
-  bindingsAPI.apiFunctions.setHandleRequestWithPromise('getDevices',
-      function() {
+  utils.handleRequestWithPromiseDoNotUse(bindingsAPI.apiFunctions,
+                                         'serial', 'getDevices', function() {
     if (shouldSucceed)
       return Promise.resolve([]);
     else