Change getDevices to use a DeviceCallback.

chrome/test/data/extensions/api_test/bluetooth/test_getdevices.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.
+
+function testGetDevices() {
+  chrome.test.assertEq(2, devices['all'].length);
+  chrome.test.assertEq('d1', devices['all'][0].name);
+  chrome.test.assertEq('d2', devices['all'][1].name);
+
+  chrome.test.assertEq(1, devices['name'].length);
+  chrome.test.assertEq('d1', devices['name'][0].name);
+
+  chrome.test.assertEq(1, devices['uuid'].length);
+  chrome.test.assertEq('d2', devices['uuid'][0].name);
+
+  chrome.test.succeed();
+}
+
+var devices = {
+  'all': [],
+  'name': [],
+  'uuid': []
+};
+function recordDevicesInto(arrayKey) {
+  return function(device) {
+    devices[arrayKey].push(device);
+  };
+}
+
+chrome.experimental.bluetooth.getDevices(
+    {
+      deviceCallback:recordDevicesInto('all')
+    },
+    function() {
+      chrome.experimental.bluetooth.getDevices(
+          {
+            name:'fooservice',
+            deviceCallback:recordDevicesInto('name')
+          },
+          function() {
+            chrome.experimental.bluetooth.getDevices(
+                {
+                  uuid:'00000010-0000-1000-8000-00805f9b34fb',
+                  deviceCallback:recordDevicesInto('uuid')
+                },
+                function() {
+                  chrome.test.sendMessage('ready',
+                      function(message) {
+                        chrome.test.runTests([
+                            testGetDevices
+                        ]);
+                    });
+                });
+          });
+    });