Move processes API to dev channel

chrome/test/data/extensions/api_test/processes/onupdated/background.js

 // Copyright (c) 2011 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.
 
 // Add a simple listener to onUpdated to ensure it does not conflict with the
 // task manager.
-chrome.experimental.processes.onUpdated.addListener(function(processes) {
+chrome.processes.onUpdated.addListener(function(processes) {
   console.log("Received update.");
 });
 
 // Add a second listener to onUpdated to ensure the task manager only hears
 // about one extension listener per process.
-chrome.experimental.processes.onUpdated.addListener(function(processes) {
+chrome.processes.onUpdated.addListener(function(processes) {
   console.log("Second listener received update.");
 });
 
 chrome.test.sendMessage("ready");