[MD Bookmarks] Add keyboard navigation and selection to bookmark list.

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

Index: chrome/test/data/webui/md_bookmarks/item_test.js
diff --git a/chrome/test/data/webui/md_bookmarks/item_test.js b/chrome/test/data/webui/md_bookmarks/item_test.js
index e850d6556c2f2a9822ab235bad1141ab6b0ccd5c..d3d8ee38846bb156d5d7d1429f3498e014ab5d0b 100644
--- a/chrome/test/data/webui/md_bookmarks/item_test.js
+++ b/chrome/test/data/webui/md_bookmarks/item_test.js
@@ -68,16 +68,4 @@ suite('<bookmarks-item>', function() {
         }),
         store.lastAction);
   });
-
-  test('anchor tag updates with item url', function() {
-    assertEquals('http://example.com/', item.$.url.href);
-
-    store.data.nodes['2'] = createItem('0', {url: 'https://mail.google.com'});
-    store.notifyObservers();
-    assertEquals('https://mail.google.com/', item.$.url.href);
-
-    // Change to a folder.
-    item.itemId = '1';
-    assertEquals('chrome://bookmarks/?id=1', item.$.url.href);
-  });
 });