[Extensions Bindings] Introduce a supportsLazyListeners property

chrome/renderer/resources/extensions/web_view/chrome_web_view.js

 // Copyright 2014 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.
 
 // This module implements chrome-specific <webview> API.
 // See web_view_api_methods.js for details.
 
 var ChromeWebView = getInternalApi ?
     getInternalApi('chromeWebViewInternal') :
     require('chromeWebViewInternal').ChromeWebView;
@@ skipping 14 matching lines @@
 // it to the subEvent's listeners. This way
 // <webview>.contextMenus.onClicked behave as a regular chrome Event type.
 var ContextMenusEvent = CreateEvent('chromeWebViewInternal.onClicked');
 // See comment above.
 var ContextMenusHandlerEvent =
     CreateEvent('chromeWebViewInternal.onContextMenuShow');
 
 var jsEvent;
 function createCustomEvent(name, schema, options, webviewId) {
   if (bindingUtil)
-    return bindingUtil.createCustomEvent(name, undefined, false);
+    return bindingUtil.createCustomEvent(name, undefined, false, false);
   if (!jsEvent)
     jsEvent = require('event_bindings').Event;
   return new jsEvent(name, schema, options, webviewId);
 }
 
 // This event is exposed as <webview>.contextMenus.onClicked.
 function createContextMenusOnClickedEvent(webViewInstanceId,
                                           opt_eventName,
                                           opt_argSchemas,
                                           opt_eventOptions) {
@@ skipping 93 matching lines @@
   ],
 });
 
 // -----------------------------------------------------------------------------
 
 WebViewImpl.prototype.maybeSetupContextMenus = function() {
   if (!this.contextMenusOnContextMenuEvent_) {
     var eventName = 'chromeWebViewInternal.onContextMenuShow';
     var eventSchema =
         utils.lookup(ChromeWebViewSchema.events, 'name', 'onShow');
-    var eventOptions = {supportsListeners: true};
+    var eventOptions = {supportsListeners: true, supportsLazyListeners: false};
     this.contextMenusOnContextMenuEvent_ = createContextMenusOnContextMenuEvent(
         this.viewInstanceId, eventName, eventSchema, eventOptions);
   }
 
   var createContextMenus = $Function.bind(function() {
     return this.weakWrapper(function() {
       if (this.contextMenus_) {
         return this.contextMenus_;
       }
 
       this.contextMenus_ = new WebViewContextMenus(this.viewInstanceId);
 
       // Define 'onClicked' event property on |this.contextMenus_|.
       var getOnClickedEvent = $Function.bind(function() {
         return this.weakWrapper(function() {
           if (!this.contextMenusOnClickedEvent_) {
             var eventName = 'chromeWebViewInternal.onClicked';
             var eventSchema =
                 utils.lookup(ChromeWebViewSchema.events, 'name', 'onClicked');
-            var eventOptions = {supportsListeners: true};
+            var eventOptions =
+                {supportsListeners: true, supportsLazyListeners: false};
             var onClickedEvent = createContextMenusOnClickedEvent(
                 this.viewInstanceId, eventName, eventSchema, eventOptions);
             this.contextMenusOnClickedEvent_ = onClickedEvent;
             return onClickedEvent;
           }
           return this.contextMenusOnClickedEvent_;
         });
       }, this);
       $Object.defineProperty(
           this.contextMenus_,
@@ skipping 18 matching lines @@
       'contextMenus',
       {
         get: createContextMenus(),
         enumerable: true
       });
 };
 
 function GetUniqueSubEventName(eventName) {
   return eventName + '/' + idGeneratorNatives.GetNextId();
 }