Remove hard-coded font families in WebUI.

chrome/browser/resources/inspect/inspect.css

-/*
- * Copyright (c) 2012 The Chromium Authors. All rights reserved.
+/* 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.
- */
+ * found in the LICENSE file. */
 
 body {
   color: rgb(48, 57, 66);
-  font-family: Arial, sans-serif;
   font-size: 13px;
   margin: 0;
   min-width: 47em;
   padding: 20px 20px 65px 0;
 }
 
 .hidden {
     display: none !important;
 }
 
@@ skipping 380 matching lines @@
 }
 
 #port-forwarding-config-buttons {
   align-items: center;
   display: flex;
 }
 
 #port-forwarding-config-buttons > label {
   flex-grow: 1
 }