Show entire URLs instead of horizontal scrollbars in about:media-internals

content/browser/resources/media/media_internals.css

 /* Copyright 2013 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. */
 
 html,
 body,
 #container {
   margin: 0;
   padding: 0;
   width: 100%;
@@ skipping 164 matching lines @@
 .show-none-if-empty:empty:after {
   content: "none";
   color: rgba(0, 0, 0, .5);
 }
 
 label.selectable-button {
   -webkit-appearance: button;
   -webkit-user-select: none;
   padding: 2px 5px;
   margin-bottom: 5px;
+  word-break: break-all;

[sandersd (OOO until July 31), 2017/07/31 21:23:30]

Are you sure that we want this in all selectable buttons, and not just players?
(The blue colors change was applied to all, so the answer is probably yes.)

 }
 
 input.selectable-button {
   display: none;
 }
 
 input.selectable-button:checked + label.selectable-button {
   background-color: #4AA9E4;
   color: white;
 }
 
 label.destructed-player {
   background-color: #E4854A;
 }
 
 .no-players-selected #players .property-wrapper,
 .no-players-selected #players #log-wrapper {
   display: none;
 }
 
 .no-components-selected #audio .property-wrapper {
   display: none;
 }