NTP4: Remove native focus emulation for bubbles when explictly told to.

chrome/browser/resources/ntp4/new_tab.js

 // Copyright (c) 2011 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.
 
 /**
  * @fileoverview New tab page
  * This is the main code for the new tab page used by touch-enabled Chrome
  * browsers.  For now this is still a prototype.
  */
 
@@ skipping 120 matching lines @@
 
       var dismissButton = loginBubble.querySelector('#login-status-dismiss');
       dismissButton.onclick = loginBubble.hide.bind(loginBubble);
 
       // The anchor node won't be updated until updateLogin is called so don't
       // show the bubble yet.
       shouldShowLoginBubble = true;
     } else if (localStrings.getString('ntp4_intro_message')) {
       infoBubble = new cr.ui.Bubble;
       infoBubble.anchorNode = newTabView.mostVisitedPage.navigationDot;
+      infoBubble.captureFocus = false;
       infoBubble.setArrowLocation(cr.ui.ArrowLocation.BOTTOM_START);
       infoBubble.handleCloseEvent = function() {
         this.hide();
         chrome.send('introMessageDismissed');
       }
 
       var bubbleContent = $('ntp4-intro-bubble-contents');
       infoBubble.content = bubbleContent;
       bubbleContent.hidden = false;
 
@@ skipping 302 matching lines @@
 // TODO(estade): update the content handlers to use ntp namespace instead of
 // making these global.
 var getAppsCallback = ntp4.getAppsCallback;
 var appsPrefChangeCallback = ntp4.appsPrefChangeCallback;
 var themeChanged = ntp4.themeChanged;
 var recentlyClosedTabs = ntp4.setRecentlyClosedTabs;
 var setMostVisitedPages = ntp4.setMostVisitedPages;
 var updateLogin = ntp4.updateLogin;
 
 document.addEventListener('DOMContentLoaded', ntp4.onLoad);