[Files.app] Support 'newwindow' event from the CWS widget

chrome/browser/resources/file_manager/js/suggest_apps_dialog.js

 // Copyright (c) 2013 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.
 
 'use strict';
 
 /**
  * SuggestAppsDialog contains a list box to select an app to be opened the file
  * with. This dialog should be used as action picker for file operations.
  */
@@ skipping 207 matching lines @@
     this.webviewContainer_.style.width = WEBVIEW_WIDTH + 'px';
     this.webviewContainer_.style.height = WEBVIEW_HEIGHT + 'px';
 
     var webview = this.container_.querySelector('#cws-widget');
     webview.style.width = WEBVIEW_WIDTH + 'px';
     webview.style.height = WEBVIEW_HEIGHT + 'px';
     webview.request.onBeforeSendHeaders.addListener(
         this.authorizeRequest_.bind(this),
         {urls: [this.widgetOrigin_ + '/*']},
         ['blocking', 'requestHeaders']);
+    webview.addEventListener('newwindow', function(event) {
+      // Discard the window object and reopen in an external window.
+      event.window.discard();
+      util.visitURL(e.targetUrl);
+      event.preventDefault();
+    });
     webview.focus();
 
     this.webviewClient_ = new CWSContainerClient(
         webview,
         extension, mime,
         WEBVIEW_WIDTH, WEBVIEW_HEIGHT,
         this.widgetUrl_, this.widgetOrigin_);
     this.webviewClient_.addEventListener('install-request',
                                          this.onInstallRequest_.bind(this));
     this.webviewClient_.load();
@@ skipping 78 matching lines @@
   this.mime_ = null;
 
   cr.ui.dialogs.BaseDialog.prototype.hide.call(this);
 
   // Calls the callback after the dialog hides.
   setTimeout(function() {
     var installed = this.state_ == SuggestAppsDialog.State.INSTALLED;
     this.onDialogClosed_(installed);
   }.bind(this), 0);
 };