Create a common directory of widgets and css.

appengine/chromium_rietveld/new_static/components/cr-issue-editor.html

 <!-- Copyright (c) 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 rel="import" href="cr-user-autocomplete.html">
 
 <polymer-element name="cr-issue-editor" attributes="issue errors disabled fields">
     <template>
-        <link rel="stylesheet" href="common.css">
-        <link rel="stylesheet" href="forms.css">
+        <link rel="stylesheet" href="../common/common.css">
+        <link rel="stylesheet" href="../common/forms.css">
 
         <fieldset class="form-fields" disabled?="{{ disabled }}">
             <template if="{{ fields | contains('subject') }}">
                 <div class="form-row">
                     <label class="form-label" for="subject">Title</label>
                     <div class="form-field">
                         <input type="text" id="subject" value="{{ subject }}" autocomplete="off" class="{{ {invalid: errors.subject} | tokenList }}">
                         <div class="form-error">{{ errors.subject }}</div>
                     </div>
                 </div>
@@ skipping 97 matching lines @@
                     private: this.private,
                 };
                 return data;
             },
             contains: function(list, value) {
                 return list && list.indexOf(value) != -1;
             },
         });
     </script>
 </polymer-element>