Move chrome.downloads out of experimental to dev

chrome/common/extensions/docs/examples/api/downloads/download_links/popup.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.
 
-// This extension demonstrates using chrome.experimental.downloads.download() to
+// This extension demonstrates using chrome.downloads.download() to
 // download URLs.
 
 var allLinks = [];
 var visibleLinks = [];
 
 // Display all visible links.
 function showLinks() {
   var linksTable = document.getElementById('links');
   while (linksTable.children.length > 1) {
     linksTable.removeChild(linksTable.children[linksTable.children.length - 1])
@@ skipping 23 matching lines @@
   var checked = document.getElementById('toggle_all').checked;
   for (var i = 0; i < visibleLinks.length; ++i) {
     document.getElementById('check' + i).checked = checked;
   }
 }
 
 // Download all visible checked links.
 function downloadCheckedLinks() {
   for (var i = 0; i < visibleLinks.length; ++i) {
     if (document.getElementById('check' + i).checked) {
-      chrome.experimental.downloads.download({url: visibleLinks[i]},
+      chrome.downloads.download({url: visibleLinks[i]},
                                              function(id) {
       });
     }
   }
   window.close();
 }
 
 // Re-filter allLinks into visibleLinks and reshow visibleLinks.
 function filterLinks() {
   var filterValue = document.getElementById('filter').value;
@@ skipping 48 matching lines @@
   document.getElementById('download1').onclick = downloadCheckedLinks;
 
   chrome.windows.getCurrent(function (currentWindow) {
     chrome.tabs.query({active: true, windowId: currentWindow.id},
                       function(activeTabs) {
       chrome.tabs.executeScript(
         activeTabs[0].id, {file: 'send_links.js', allFrames: true});
     });
   });
 };