Cleanup: Remove empty array param from chrome.send('x', []).

chrome/browser/resources/chromeos/login/network_dropdown.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Network drop-down implementation.
  */
 
 cr.define('cr.ui', function() {
   /**
@@ skipping 385 matching lines @@
   };
 
   /**
    * Deactivates network drop-down. Deactivating inactive drop-down does
    * nothing.
    * @param {string} elementId Id of network drop-down element.
    */
   DropDown.hide = function(elementId) {
     if (DropDown.activeElementId_ == elementId) {
       DropDown.activeElementId_ = '';
-      chrome.send('networkDropdownHide', []);
+      chrome.send('networkDropdownHide');
     }
   };
 
   /**
    * Refreshes network drop-down. Should be called on language change.
    */
   DropDown.refresh = function() {
-    chrome.send('networkDropdownRefresh', []);
+    chrome.send('networkDropdownRefresh');
   };
 
   return {
     DropDown: DropDown
   };
 });