Remove BrowserPlugin's -internal-attach method

chrome/test/data/extensions/platform_apps/web_view/newwindow/embedder.js

 // Copyright 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.
 
 var embedder = {};
 embedder.test = {};
 embedder.baseGuestURL = '';
 embedder.guestURL = '';
 embedder.guestWithLinkURL = '';
 embedder.newWindowURL = '';
@@ skipping 417 matching lines @@
     chrome.app.window.create('newwindow.html', {
       width: 640,
       height: 480
     }, function(newwindow) {
       newwindow.contentWindow.onload = function(evt) {
         var newwebview =
             newwindow.contentWindow.document.querySelector('webview');
         newwebview.request.onBeforeRequest.addListener(function(e) {
           if (!calledWebRequestEvent) {
             calledWebRequestEvent = true;
+            window.console.log('removing newwebview');
             newwebview.parentElement.removeChild(newwebview);
+            window.console.log('after removeChild');
             setTimeout(function() {
+              window.console.log('navigating webview');
               webview.src = embedder.guestURL;
+              window.console.log('after navigating webview');
             }, 0);
           }
         }, {urls: ['<all_urls>']});
         try {
           e.window.attach(newwebview);
         } catch (e) {
           embedder.test.fail();
         }
       };
     });
@@ skipping 17 matching lines @@
   'testNewWindowWebRequestCloseWindow': testNewWindowWebRequestCloseWindow,
   'testNewWindowWebRequestRemoveElement': testNewWindowWebRequestRemoveElement
 };
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.sendMessage('Launched');
   });
 };