MD Bookmarks: Prevent keyboard shortcuts when the toolbar/dialogs are focused

chrome/browser/resources/md_bookmarks/folder_node.js

 // Copyright 2016 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.
 
 Polymer({
   is: 'bookmarks-folder-node',
 
   behaviors: [
     bookmarks.StoreClient,
   ],
@@ skipping 92 matching lines @@
     } else {
       handled = false;
     }
 
     if (this.getComputedStyleValue('direction') == 'rtl')
       xDirection *= -1;
 
     this.changeKeyboardSelection_(
         xDirection, yDirection, this.root.activeElement);
 
+    if (!handled) {
+      handled = bookmarks.CommandManager.getInstance().handleKeyEvent(
+          e, new Set([this.itemId]));
+    }
+
     if (!handled)
       return;
 
     e.preventDefault();
     e.stopPropagation();
   },
 
   /**
    * @private
    * @param {number} xDirection
@@ skipping 212 matching lines @@
   },
 
   /**
    * @private
    * @return {string}
    */
   getTabIndex_: function() {
     return this.isSelectedFolder_ ? '0' : '';
   },
 });