[DevTools] Remove usage of outline-disclosure from resources sidebar.

third_party/WebKit/Source/devtools/front_end/resources/resourcesSidebar.css

 /*
  * 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.
  */
 
 .tree-outline {
     padding-left: 0;
     color: rgb(90, 90, 90);
 }
 
 .tree-outline > ol {
     padding-bottom: 10px;
 }
 
 .icon {
     width: 16px;
     height: 16px;
     margin-right: 4px;
 }
 
-.tree-outline-disclosure li {
+.tree-outline li {
     min-height: 20px;
 }
 
 li.storage-group-list-item {
     border-top: 1px solid rgb(230, 230, 230);
     padding: 10px 8px 6px 8px;
 }
 
 li.storage-group-list-item::before {
     display: none;
@@ skipping 96 matching lines @@
     -webkit-mask-position: 0 0;
 }
 
 .service-worker-tree-item .icon {
     -webkit-mask-position: -20px 0;
 }
 
 .clear-storage-tree-item .icon {
     -webkit-mask-position: -40px 0;
 }