[DevTools] Migrate XMLView to TreeOutlineInShadow.

third_party/WebKit/Source/devtools/front_end/network/xmlTree.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 ol {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+    -webkit-padding-start: 16px;
+}
+
+ol.tree-outline {
+    -webkit-padding-start: 0;
+}
+
+.tree-outline li {
+    min-height: 12px;
+}
+
+.tree-outline li.shadow-xml-view-close-tag {
+    margin-left: -16px;
+}
+
+.shadow-xml-view-tag {
+    color: rgb(136, 18, 128);
+}
+
+.shadow-xml-view-comment {
+    color: rgb(35, 110, 37);
+}
+
+.shadow-xml-view-processing-instruction {
+    color: rgb(35, 110, 37);
+}
+
+.shadow-xml-view-attribute-name {
+    color: rgb(153, 69, 0);
+}
+
+.shadow-xml-view-attribute-value {
+    color: rgb(26, 26, 166);
+}
+
+.shadow-xml-view-text {
+    color: rgb(0, 0, 0);
+    white-space: pre;
+}
+
+.shadow-xml-view-cdata {
+    color: rgb(0, 0, 0);
+}