Adds cache and buffer graphs to the properties pane.

content/browser/resources/media/new/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%;
   height: 100%;
 
   font-family: 'Lucida Grande', sans-serif;
 }
 
 table {
   border-collapse: collapse;
 }
 td {
   border: 1px solid black;
+  word-wrap: break-word;
+  max-width: 200px;
 }
 thead {
   color: rgb(50,50,50);
   font-size: 1.1em;
 }
 
 h1,
 h2,
 h3 {
   color: rgb(50,50,50);
 }
 
 #container {
   display: flex;
   flex-direction: row;
   flex-wrap: wrap;
   justify-content: space-between;
   align-items: flex-start;
   align-content: stretch;
 }
 
 #container > * {
   padding: 0;
   padding-left: 25px;
   margin: 0;
-  max-height: 100%;
 }
 
 #list-wrapper {
   display: flex;
   flex-direction: column;
   justify-content: space-between;
   align-items: flex-start;
   align-content: stretch;
-  height: 100%;
 }
 
 #player-list-wrapper,
 #audio-stream-list-wrapper {
   flex-grow: 1;
   align-self: stretch;
   min-width: 200px;
   max-width: 200px;
   overflow: auto;
 }
@@ skipping 16 matching lines @@
 #log-wrapper {
   display:block;
   flex-grow: 0.5;
   align-self: stretch;
   overflow: auto;
 }
 
 #log-wrapper > thead {
   position: fixed;
 }
+
+#graphs li {
+  list-style-type: none;
+}