web_dev_style: Fix errors in new directories and enable PRESUBMIT

ui/webui/resources/css/list.css

 /* Copyright (c) 2012 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. */
 
 list,
 grid {
   display: block;
   outline: none;
   overflow: auto;
   position: relative; /* Make sure that item offsets are relative to the
@@ skipping 95 matching lines @@
   margin: 0;
   vertical-align: middle;
 }
 
 list > [hidden],
 grid > [hidden] {
   display: none;
 }
 
 list > .drag-selection-border {
-  border-radius: 0;
   background-color: rgba(255, 255, 255, 0.3);
   border: 2px solid rgba(255, 255, 255, 0.6);
+  border-radius: 0;
   outline: 1px solid rgba(0, 0, 0, 0.1);
   position: absolute;
   z-index: 2;
 }