[DevTools] Turn links into spans to prevent default behavior.

third_party/WebKit/Source/devtools/front_end/elements/elementsTreeOutline.css

 /*
  * Copyright (c) 2014 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.
  */
 
 .elements-disclosure {
     width: 100%;
     display: inline-block;
     line-height: normal;
@@ skipping 223 matching lines @@
 .elements-gutter-decoration.elements-has-decorated-children {
     opacity: 0.5;
 }
 
 .add-attribute {
     margin-left: 1px;
     margin-right: 1px;
     white-space: nowrap;
 }
 
-.webkit-html-attribute-value a {
-    cursor: default !important;
-}
-
 .elements-tree-nowrap, .elements-tree-nowrap .li {
     white-space: pre !important;
 }
 
 .elements-disclosure .elements-tree-nowrap li {
     word-wrap: normal;
 }
 
 /* DOM update highlight */
 @-webkit-keyframes dom-update-highlight-animation {
@@ skipping 50 matching lines @@
     display: none;
 }
 
 ol:focus li.selected .webkit-html-tag {
     color: #a5a5a5;
 }
 
 ol:focus li.selected .webkit-html-tag-name,
 ol:focus li.selected .webkit-html-close-tag-name,
 ol:focus li.selected .webkit-html-attribute-value,
-ol:focus li.selected .webkit-html-external-link,
-ol:focus li.selected .webkit-html-resource-link {
+ol:focus li.selected .devtools-link {
     color: white;
 }
 
 ol:focus li.selected .webkit-html-attribute-name {
     color: #ccc;
 }
 
 .elements-disclosure .gutter-container {
     position: absolute;
     top: 0;
@@ skipping 34 matching lines @@
     border-color: hsla(0,0%,0%,0.1);
 }
 
 .elements-tree-outline ol.shadow-root {
     border-color: hsla(0,0%,80%,1);
 }
 
 li.selected:not(.always-parent) + ol.children {
     border-color: hsla(216,68%,80%,1) !important;
 }