Fix navigations in OOP PDF

chrome/browser/resources/pdf/pdf.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.
 
 'use strict';
 
 /**
  * @return {number} Width of a scrollbar in pixels
  */
 function getScrollbarWidth() {
@@ skipping 379 matching lines @@
         else
           this.passwordScreen_.deny();
         break;
       case 'goToPage':
         this.viewport_.goToPage(message.data.page);
         break;
       case 'loadProgress':
         this.updateProgress_(message.data.progress);
         break;
       case 'navigate':
-        if (message.data.newTab)
-          window.open(message.data.url);
-        else
-          window.location.href = message.data.url;
+        if (message.data.newTab) {
+          chrome.tabs.create({ url: message.data.url });
+        } else {
+          chrome.tabs.update(
+              this.streamDetails.tabId, { url: message.data.url });
+        }
         break;
       case 'setScrollPosition':
         var position = this.viewport_.position;
         if (message.data.x != undefined)
           position.x = message.data.x;
         if (message.data.y != undefined)
           position.y = message.data.y;
         this.viewport_.position = position;
         break;
       case 'setTranslatedStrings':
@@ skipping 189 matching lines @@
               this.streamDetails.tabId != -1);
   },
 
   /**
    * @type {Viewport} the viewport of the PDF viewer.
    */
   get viewport() {
     return this.viewport_;
   }
 };