MD Bookmarks: Prevent navigating to invalid folders

chrome/test/data/webui/md_bookmarks/router_test.js

Index: chrome/test/data/webui/md_bookmarks/router_test.js
diff --git a/chrome/test/data/webui/md_bookmarks/router_test.js b/chrome/test/data/webui/md_bookmarks/router_test.js
index 68eabe1c8799b1a0d2fa061c6cc9cbd286771396..151455d517fe60c3844b18d2847b2a84de61cc5d 100644
--- a/chrome/test/data/webui/md_bookmarks/router_test.js
+++ b/chrome/test/data/webui/md_bookmarks/router_test.js
@@ -13,6 +13,7 @@ suite('<bookmarks-router>', function() {
 
   setup(function() {
     store = new bookmarks.TestStore({
+      nodes: testTree(createFolder('1', [createFolder('2', [])])),
       selectedId: '1',
       search: {
         term: '',
@@ -31,17 +32,17 @@ suite('<bookmarks-router>', function() {
   });
 
   test('selected folder updates from route', function() {
-    navigateTo('/?id=5');
+    navigateTo('/?id=2');
     assertEquals('select-folder', store.lastAction.name);
-    assertEquals('5', store.lastAction.id);
+    assertEquals('2', store.lastAction.id);
   });
 
   test('route updates from ID', function() {
-    store.data.selectedFolder = '6';
+    store.data.selectedFolder = '2';
     store.notifyObservers();
 
     return Promise.resolve().then(function() {
-      assertEquals('chrome://bookmarks/?id=6', window.location.href);
+      assertEquals('chrome://bookmarks/?id=2', window.location.href);
     });
   });