Don't show the pending URL for chrome.tabs API navigations.

chrome/test/data/extensions/api_test/tabs/basics/crud2.js

 // Copyright (c) 2012 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 secondWindowId;
 var thirdWindowId;
 var testTabId;
 
 function clickLink(id) {
   var clickEvent = document.createEvent('MouseEvents');
@@ skipping 73 matching lines @@
       }));
     }));
   },
 
   function update() {
     chrome.tabs.get(testTabId, pass(function(tab) {
       assertEq(pageUrl("a"), tab.url);
       // Update url.
       chrome.tabs.update(testTabId, {"url": pageUrl("c")},
                          pass(function(tab){
-        chrome.test.assertEq(pageUrl("c"), tab.url);
+        // TODO(creis): The tab's visible URL won't change until the navigation
+        // commits.  There doesn't seem to be a way to check what the pending
+        // URL is here, so this test should wait until the navigation commits.
+        // chrome.test.assertEq(pageUrl("c"), tab.url);
         // Check url.
-        chrome.tabs.get(testTabId, pass(function(tab) {
-          assertEq(pageUrl("c"), tab.url);
-        }));
+        //chrome.tabs.get(testTabId, pass(function(tab) {
+        //  assertEq(pageUrl("c"), tab.url);
+        //}));
       }));
     }));
   },
 
   function openerTabId() {
     chrome.test.listenOnce(
         chrome.tabs.onCreated,
         function(tab) {
       chrome.tabs.getCurrent(pass(function(thisTab) {
         assertEq(thisTab.id, tab.openerTabId);
@@ skipping 63 matching lines @@
         assertEq(window.tabs.length, 1);
         chrome.tabs.get(tab.id, pass(function(updatedTabInfo) {
           assertEq(tab.windowId, updatedTabInfo.windowId);
           assertTrue(window.id != updatedTabInfo.windowId);
         }));
       }));
     }));
   },
 
 ]);