Only allow extension pages to be displayed in the sidebar to be consistent...

chrome/test/data/extensions/api_test/sidebar/test.js

 // Copyright (c) 2010 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.
 
 // API test for chrome.experimental.sidebar.
 // browser_tests.exe --gtest_filter=SidebarApiTest.Sidebar
 
 const assertEq = chrome.test.assertEq;
 const assertTrue = chrome.test.assertTrue;
 const pass = chrome.test.callbackPass;
@@ skipping 188 matching lines @@
             });
           });
         });
       });
     });
   },
 
   function navigateSidebar() {
     showSidebarForCurrentTab(function() {
       expandSidebarForCurrentTab(function() {
-        chrome.sidebar.navigate({url: 'simple_page.html'});
+        chrome.sidebar.navigate({path: 'simple_page.html'});
         hideSidebarForCurrentTab(pass());
       });
     });
   },
 
   function crashTest() {
     // Chrome should not crash on this request.
     chrome.sidebar.getState(undefined, function(state) {
       assertEq('hidden', state);
       chrome.sidebar.getState(null, function(state) {
@@ skipping 17 matching lines @@
       // TODO(alekseys): test unicode strings.
       chrome.sidebar.setBadgeText({text: 'Some random text'});
       chrome.sidebar.setIcon({path: 'icon.png'});
       chrome.sidebar.setTitle({title: 'Some random title'});
       hideSidebarForCurrentTab(pass());
     });
   }
 ];
 
 chrome.test.runTests(tests);