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

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

Index: chrome/test/data/extensions/api_test/sidebar/test.js
===================================================================
--- chrome/test/data/extensions/api_test/sidebar/test.js	(revision 72219)
+++ chrome/test/data/extensions/api_test/sidebar/test.js	(working copy)
@@ -206,7 +206,7 @@
   function navigateSidebar() {
     showSidebarForCurrentTab(function() {
       expandSidebarForCurrentTab(function() {
-        chrome.sidebar.navigate({url: 'simple_page.html'});
+        chrome.sidebar.navigate({path: 'simple_page.html'});
         hideSidebarForCurrentTab(pass());
       });
     });