Desktop user manager: Icons for supervised users.

Followup to https://codereview.chromium.org/307483002/ that adds the new resources.

BUG=372812, 310640

Review URL: https://codereview.chromium.org/309643006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276470 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/theme/theme_resources.grd

@@ -338,6 +338,7 @@
         <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_ADD_USER" file="common/icon_add_user.png" />
         <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_BROWSE_GUEST" file="common/icon_browse_as_guest.png" />
         <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_LOCKED" file="common/icon_locked.png" />
+        <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_SUPERVISED" file="common/icon_supervised.png" />
         <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_MENU_LOCK" file="common/avatar_menu_lock.png" />
         <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_MENU_AVATAR" file="common/avatar_menu_profile.png" />
         <structure type="chrome_scaled_image" name="IDR_ICON_PROFILES_MENU_SUPERVISED" file="common/avatar_menu_supervised.png" />

chrome/browser/resources/user_manager/user_manager.css

@@ -79,8 +79,7 @@ html[dir=rtl] .pod .locked-indicator {
 }
 
 .pod .supervised-indicator {
-  /* TODO(treib): Use round icon when it's available. */
-  background-image: url('chrome://theme/IDR_MANAGED_USER_ICON');
+  background-image: url('chrome://theme/IDR_ICON_PROFILES_SUPERVISED');
   background-repeat: no-repeat;
   height: 35px;
   left: 10px;