Move the USB API tests into app_shell_browsertests.

extensions/test/data/api_test/usb/reset_device/test.js

 // Copyright 2013 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.
 
 var usb = chrome.usb;
 
 function resetDevice() {
   usb.findDevices({vendorId: 0, productId: 0}, function(devices) {
     usb.resetDevice(devices[0], function(result) {
       chrome.test.assertEq(result, true);
@@ skipping 15 matching lines @@
             );
             chrome.test.succeed();
           });
         });
       });
     });
   });
 }
 
 chrome.test.runTests([resetDevice]);