Fast user switcher: Add "(Supervised)" label for supervised users

BUG=463463

Review URL: https://codereview.chromium.org/1018003002

Cr-Commit-Position: refs/heads/master@{#321184}

chrome/browser/ui/views/profiles/profile_chooser_view.cc

@@ -1292,12 +1292,18 @@ views::View* ProfileChooserView::CreateOtherProfilesView(
     AvatarMenu::GetImageForMenuButton(
         item.profile_path, &item_icon, &is_rectangle);
 
+    base::string16 title = item.name;
+    if (item.supervised) {
+      title = l10n_util::GetStringFUTF16(IDS_SUPERVISED_USER_NEW_AVATAR_LABEL,
+                                         title);
+    }
+
     gfx::Image image = profiles::GetSizedAvatarIcon(
         item_icon, true, kSmallImageSide, kSmallImageSide);
 
     views::LabelButton* button = new BackgroundColorHoverButton(
         this,
-        item.name,
+        title,
         *image.ToImageSkia());
     open_other_profile_indexes_map_[button] = index;