Move net.html import down into the modules that use it

Tools/GardeningServer/ui/ct-failure-analyzer.html

 <!--
 Copyright 2014 The Chromium Authors. All rights reserved.
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 -->
 <link href="../model/ct-builder-revisions.html" rel="import">
 
+<link rel="import" href="../lib/net.html">
 <link rel="import" href="../model/ct-failure.html">
 <link rel="import" href="../model/ct-failure-group.html">
 
 <polymer-element name="ct-failure-analyzer" attributes="failures builderLatestRevisions lastUpdateDate">
   <script>
     // FIXME: Don't use a polymer component for this. Instead use a Failures model
     // object that knows how to do the XHR and process the data appropriately.
     Polymer({
       builderLatestRevisions: null,
       failures: null,
@@ skipping 139 matching lines @@
           if (!this.failures[tree])
             this.failures[tree] = [];
           // FIXME: Need a better identifier for a failure group;
           var key = group.sort_key;
           this.failures[tree].push(new CTFailureGroup(key, failures, annotations[key]));
         }.bind(this));
       },
     });
   </script>
 </polymer-element>