Lazy load chrome.* APIs

chrome/renderer/resources/extensions/bluetooth_custom_bindings.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.
 
-// Custom bindings for the Bluetooth API.
+// Custom binding for the Bluetooth API.
+
+var binding = require('binding').Binding.create('bluetooth');
 
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var chrome = requireNative('chrome').GetChrome();
 var sendRequest = require('sendRequest').sendRequest;
 var lastError = require('lastError');
 
-// Use custom bindings to create an undocumented event listener that will
+// Use custom binding to create an undocumented event listener that will
 // receive events about device discovery and call the event listener that was
 // provided with the request to begin discovery.
-chromeHidden.registerCustomHook('bluetooth', function(api) {
+binding.registerCustomHook(function(api) {
   var apiFunctions = api.apiFunctions;
 
   chromeHidden.bluetooth = {};
 
   function callCallbackIfPresent(args) {
     if (typeof(args[args.length-1]) == "function") {
       args[args.length-1]();
     }
   }
 
@@ skipping 122 matching lines @@
           throw new Error("getDevices must be passed options with a " +
               "deviceCallback.");
         }
 
         chromeHidden.bluetooth.getDevicesState = state;
         addDeviceSearchListeners();
 
         return args;
       });
 });
+
+exports.binding = binding.generate();