Lazy load chrome.* APIs

chrome/renderer/resources/extensions/web_request_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 webRequest API.
 
+var bindings = new (require('schema_binding_generator').Bindings)('webRequest');
+
 var webRequestNatives = requireNative('web_request');
 var GetUniqueSubEventName = webRequestNatives.GetUniqueSubEventName;
 
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
 var sendRequest = require('sendRequest').sendRequest;
 var validate = require('schemaUtils').validate;
 
 // WebRequestEvent object. This is used for special webRequest events with
 // extra parameters. Each invocation of addListener creates a new named
 // sub-event. That sub-event is associated with the extra parameters in the
@@ skipping 122 matching lines @@
     throw new Error('This event does not support rules.');
   this.eventForRules_.removeRules(ruleIdentifiers, opt_cb);
 }
 
 WebRequestEvent.prototype.getRules = function(ruleIdentifiers, cb) {
   if (!this.eventOptions_.supportsRules)
     throw new Error('This event does not support rules.');
   this.eventForRules_.getRules(ruleIdentifiers, cb);
 }
 
-chromeHidden.registerCustomEvent('webRequest', WebRequestEvent);
+bindings.registerCustomEvent(WebRequestEvent);
 
-chromeHidden.registerCustomHook('webRequest', function(api) {
+bindings.registerCustomHook(function(api) {
   var apiFunctions = api.apiFunctions;
 
   apiFunctions.setHandleRequest('handlerBehaviorChanged', function() {
     var args = Array.prototype.slice.call(arguments);
     sendRequest(this.name, args, this.definition.parameters,
                 {forIOThread: true});
   });
 });
+
+// TODO(cduvall): Make sure this is right.
+if (!('webRequestInternal' in chromeHidden.internalAPIs))
+  require('webRequestInternal');
+
+exports.bindings = bindings.generate();