old_contents: // Copyright (c) 2014 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.
  
  registerManualTests('chrome.system.display', function(rootEl, addButton) {
    addButton('Get Info', function() {
      chrome.system.display.getInfo(function(info) {
        logger(JSON.stringify(info, null, 4));
      });
    });
  });
  
new_contents: // Copyright (c) 2014 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.
  
  exports.defineManualTests = function(rootEl, addButton) {
    addButton('Get Info', function() {
      chrome.system.display.getInfo(function(info) {
        logger(JSON.stringify(info, null, 4));
      });
    });
  };
  
subject: Convert manual tests to use Cordova plugin test framework