Mark supervised users in the "Users" list in about:settings.

chrome/browser/resources/options/browser_options.css

Index: chrome/browser/resources/options/browser_options.css
diff --git a/chrome/browser/resources/options/browser_options.css b/chrome/browser/resources/options/browser_options.css
index ac9230d6714481dfef832f992e59d66ab5c91abe..97e640022e8a4799b53f21ac42fc80c692f4be19 100644
--- a/chrome/browser/resources/options/browser_options.css
+++ b/chrome/browser/resources/options/browser_options.css
@@ -87,13 +87,26 @@ html[dir=rtl] #account-picture-wrapper {
   min-height: 0;
 }
 
-#profiles-list .profile-name {
+#profiles-list .profile-container {
   -webkit-box-flex: 1;

[Patrick Dubroy, 2014/04/02 14:42:05]

We shouldn't mix and match different flexbox specs here.

[Marc Treib, 2014/04/03 10:13:32]

Done.

+  display: -webkit-flex;
+}
+
+#profiles-list .profile-name {
+  -webkit-flex-grow: 0;
+  -webkit-flex-shrink: 1;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
+#profiles-list .profile-supervised {
+  -webkit-flex-grow: 1;
+  -webkit-flex-shrink: 0;
+  color: gray;
+  margin-left: 5px;
+}
+
 #profiles-list > * {
   height: 40px;
 }