Create a common directory of widgets and css.

appengine/chromium_rietveld/new_static/components/cr-issue-inbox.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-issue-inbox-section.html">
 
 <polymer-element name="cr-issue-inbox" attributes="issues weeks showRecentActivity" noscript>
     <template>
-        <link rel="stylesheet" href="common.css">
+        <link rel="stylesheet" href="../common/common.css">
 
         <template if="{{ issues.draft.length }}">
             <h1>Issues with Drafts</h1>
             <cr-issue-inbox-section issues="{{ issues.draft }}" weeks="{{ weeks }}" showRecentActivity="{{ showRecentActivity }}"></cr-issue-inbox-section>
         </template>
 
         <template if="{{ issues.outgoing.length }}">
             <h1>Outgoing</h1>
             <cr-issue-inbox-section issues="{{ issues.outgoing }}" weeks="{{ weeks }}" showRecentActivity="{{ showRecentActivity }}"></cr-issue-inbox-section>
         </template>
@@ skipping 12 matching lines @@
             <h1>CCed</h1>
             <cr-issue-inbox-section issues="{{ issues.cc }}" weeks="{{ weeks }}" showRecentActivity="{{ showRecentActivity }}"></cr-issue-inbox-section>
         </template>
 
         <template if="{{ issues.closed.length }}">
             <h1>Recently Closed</h1>
             <cr-issue-inbox-section issues="{{ issues.closed }}" weeks="{{ weeks }}" showRecentActivity="{{ showRecentActivity }}"></cr-issue-inbox-section>
         </template>
     </template>
 </polymer-element>