Add charts to the resource data section of chrome://media-internals.

chrome/browser/resources/media_internals/media_internals.css

Index: chrome/browser/resources/media_internals/media_internals.css
diff --git a/chrome/browser/resources/media_internals/media_internals.css b/chrome/browser/resources/media_internals/media_internals.css
index 7198d9bd4ded2e14b53cef5b4b699fa405d38d21..c43a421d13f1b4e9e08866d1b1d6373c9e8400ce 100644
--- a/chrome/browser/resources/media_internals/media_internals.css
+++ b/chrome/browser/resources/media_internals/media_internals.css
@@ -3,6 +3,14 @@
  * found in the LICENSE file.
  */
 
+h2 {
+  margin: 15px 0px 5px 0px;
+}
+
+ul, p {
+  margin: 0px;
+}
+
 .audio-stream[status='created'] {
   color: blue;
 }
@@ -14,3 +22,20 @@
 .audio-stream[status='error'] {
   color: red;
 }
+
+#cache-entries ul {
+  list-style-type: none;
+}
+
+.cache-entry {
+  margin: 0px 0px 5px 0px;
+}
+
+.cache-entry footer {
+  font-size: smaller;
+  margin: 0px 0px 10px 0px;
+}
+
+.cache-entry summary {
+  text-indent: -1em;
+}