bluetooth: Add AdapterInfo in Bluetooth adapter service.

chrome/browser/resources/bluetooth_internals/bluetooth_internals.js

 // Copyright 2016 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.
 
 /**
  * Javascript for bluetooth_internals.html, served from
  *     chrome://bluetooth-internals/.
  */
 
 /**
@@ skipping 20 matching lines @@
     console.log(device);
   }
 };
 
 (function() {
   var adapter = null;
   var adapterClient = null;
   var adapterClientHandle = null;
 
   /**
+   * Logs basic information retrieved from the adapter.
+   */
+  function logAdapterInfo() {
+    console.log('Getting adapter info');
+
+    adapter.getAddress().then(function(response) {

[scheib, 2016/10/01 00:26:49]

Perhaps we should have an AdapterInfo struct and fold Address, Name, Powered,
Present all into that with just one accessor? 

[mbrunson, 2016/10/03 17:40:10]

I agree.

+      console.log('Address: ' + response.address);
+    });
+
+    adapter.getName().then(function(response) {
+      console.log('Name: ' + response.name);
+    });
+
+    adapter.isPowered().then(function(response) {
+      console.log('Is Powered: ' + response.powered);
+    });
+
+    adapter.isPresent().then(function(response) {
+      console.log('Is Present: ' + response.present);
+    });
+
+    adapter.getDevices().then(function(response) {
+      console.log('Device Count: ' + response.devices.length);
+    });
+  }
+
+  /**
    * Helper to convert callback-based define() API to a promise-based API.
    * @param {!Array<string>} moduleNames
    * @return {!Promise}
    */
   function importModules(moduleNames) {
     return new Promise(function(resolve, reject) {
       define(moduleNames, function(var_args) {
         resolve(Array.prototype.slice.call(arguments, 0));
       });
     });
   }
 
   /**
    * Initializes Mojo proxies for page and Bluetooth services.
    * @return {!Promise}
    */
   function initializeProxies() {
     return importModules([
              'content/public/renderer/frame_interfaces',
              'device/bluetooth/public/interfaces/adapter.mojom',
              'mojo/public/js/connection',
            ])
         .then(function(modules) {
           var frameInterfaces = modules[0];
           var bluetoothAdapter = modules[1];
           var connection = modules[2];
 
           console.log('Loaded modules');
 
-          // Hook up the instance properties
+          // Hook up the instance properties.
           AdapterClient.prototype.__proto__ =
               bluetoothAdapter.AdapterClient.stubClass.prototype;
 
           // Create a message pipe and bind one end to client
-          // implementation
+          // implementation.
           adapterClient = new AdapterClient();
           adapterClientHandle = connection.bindStubDerivedImpl(adapterClient);
 
           adapter = connection.bindHandleToProxy(
               frameInterfaces.getInterface(bluetoothAdapter.Adapter.name),
               bluetoothAdapter.Adapter);
 
           adapter.setClient(adapterClientHandle);
         });
   }
 
   document.addEventListener('DOMContentLoaded', function() {
-    initializeProxies()
-        .then(function() { return adapter.getDevices();})
-        .then(function(response) {console.log(response.devices);});
+    initializeProxies().then(function() { logAdapterInfo(); });
   });
 })();