Lazy load chrome.* APIs

chrome/renderer/resources/extensions/app_window_custom_bindings.js

Index: chrome/renderer/resources/extensions/app_window_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/app_window_custom_bindings.js b/chrome/renderer/resources/extensions/app_window_custom_bindings.js
index 1bb5befe0c061a8b449601eefa0f12ece2c3181b..b0dba6c63a93b49c164f13ac8d1f5070d9ab62aa 100644
--- a/chrome/renderer/resources/extensions/app_window_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/app_window_custom_bindings.js
@@ -2,17 +2,23 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Custom bindings for the app_window API.
+// Custom binding for the app_window API.
+
+var binding = require('binding').Binding.create('app.window');
 
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var chrome = requireNative('chrome').GetChrome();
 var sendRequest = require('sendRequest').sendRequest;
 var appWindowNatives = requireNative('app_window');
 var forEach = require('utils').forEach;
 var GetView = appWindowNatives.GetView;
 var OnContextReady = appWindowNatives.OnContextReady;
+var currentWindowInternal = require('binding').Binding.create(
+    'app.currentWindowInternal').generate();
 
-chromeHidden.registerCustomHook('app.window', function(bindingsAPI) {
+binding.registerCustomHook(function(bindingsAPI) {
   var apiFunctions = bindingsAPI.apiFunctions;
+
   apiFunctions.setCustomCallback('create',
                                  function(name, request, windowParams) {
     var view = null;
@@ -82,9 +88,9 @@ chromeHidden.registerCustomHook('app.window', function(bindingsAPI) {
   // because it is called from a different JS context.
   apiFunctions.setHandleRequest('initializeAppWindow', function(params) {
     var AppWindow = function() {};
-    forEach(chromeHidden.internalAPIs.app.currentWindowInternal, function(fn) {
+    forEach(currentWindowInternal, function(fn) {
       AppWindow.prototype[fn] =
-          chromeHidden.internalAPIs.app.currentWindowInternal[fn];
+          currentWindowInternal[fn];
     });
     AppWindow.prototype.moveTo = window.moveTo.bind(window);
     AppWindow.prototype.resizeTo = window.resizeTo.bind(window);
@@ -148,3 +154,5 @@ chromeHidden.updateAppWindowProperties = function(update) {
       (oldData.maximized && !update.maximized))
     currentWindow["onRestored"].dispatch();
 };
+
+exports.binding = binding.generate();