MD user manager (learn more page, user manager tutorial)

chrome/browser/resources/md_user_manager/user_manager.js

Index: chrome/browser/resources/md_user_manager/user_manager.js
diff --git a/chrome/browser/resources/md_user_manager/user_manager.js b/chrome/browser/resources/md_user_manager/user_manager.js
index 0661794aa9a9af1231d05c5bdb79594359c86063..7470d873d91555b0eace60268183ef16cfd839ad 100644
--- a/chrome/browser/resources/md_user_manager/user_manager.js
+++ b/chrome/browser/resources/md_user_manager/user_manager.js
@@ -47,7 +47,9 @@ cr.define('cr.ui', function() {
     // make sense when displayed as a widget.
     document.addEventListener('contextmenu', function(e) {e.preventDefault();});
 
-    // TODO(mahmadi): start the tutorial if the location hash is #tutorial.
+    var hash = window.location.hash;
+    if (hash && hash == '#tutorial')

[Dan Beam, 2016/02/25 17:22:07]

why is this code better than

  if (window.location.hash == '#tutorial')

?

[Moe, 2016/03/02 18:25:52]

The check is unnecessary. I agree. I reintroduced the old js code that used to
be here. But I know that doesn't mean I shouldn't make sure it makes sense :) 

+      document.querySelector('user-manager-tutorial').startTutorial();
   };
 
   /**
@@ -109,7 +111,7 @@ cr.define('cr.ui', function() {
    * Show the user manager tutorial
    */
   Oobe.showUserManagerTutorial = function() {
-    // TODO(mahmadi): start the tutorial.
+    document.querySelector('user-manager-tutorial').startTutorial();
   };
 
   // Export