Links to the newui preserve state

appengine/swarming/templates/restricted_bot.html

 {% extends "swarming/base.html" %}
 
 
 {% block headers %}
 <style>
   h1 {
     margin-top: 10px;
     margin-bottom: 10px;
   }
 
@@ skipping 28 matching lines @@
   }
 
 </style>
 {% endblock %}
 
 
 {% block body %}
 {% import 'swarming/bot_view.html' as bot_view %}
 <h1>Bot details</h1>
 <a href="/restricted/bots">Back to bots list</a>
+<br/>
+<a href="{{try_link}}">Try out the new bot page UI</a>
 <p>
 
 {% if bot %}
   <table class="property_table">
     <tbody>
       <tr title="The bot id is what uniquely identify the bot.">
         <td>ID</td>
         <td>{{bot.id}}</td>
       </tr>
       <tr title="How the bot is authenticated by the server.">
@@ skipping 157 matching lines @@
     Next page</a>
   {% endif %}
 
 {% else %}
 
   Bot {{bot_id}} not found.
 
 {% endif %}
 
 {% endblock %}