Display active audio streams on chrome://media-internals.

chrome/browser/resources/media_internals.css

Index: chrome/browser/resources/media_internals.css
diff --git a/chrome/browser/resources/media_internals.css b/chrome/browser/resources/media_internals.css
new file mode 100644
index 0000000000000000000000000000000000000000..010a3fd4e982a60a1d94a9d4547386d53b9a9f69
--- /dev/null
+++ b/chrome/browser/resources/media_internals.css
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2011 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.
+ */
+
+.created {
+  color: blue;
+}
+
+.closed {
+  text-decoration: line-through;
+}
+
+.error {
+  color: red;
+}