Docserver: Fix the TOC rendering for API references by fixing the haphazard way

chrome/common/extensions/docs/server2/table_of_contents_renderer.py

 # Copyright 2013 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.
 
 from extensions_paths import PRIVATE_TEMPLATES
 from file_system import FileNotFoundError
 
 
 class TableOfContentsRenderer(object):
   '''Renders a table of contents pulled from a list of DocumentSections
@@ skipping 15 matching lines @@
     (text, warnings).
     '''
     path = '%s/table_of_contents.html' % PRIVATE_TEMPLATES
     try:
       table_of_contents_template = self._templates.GetFromFile(path).Get()
     except FileNotFoundError:
       return '', ['%s not found' % path]
 
     def make_toc_items(entries):
       return [{
-        'attributes':  [(key, val) for key, val in entry.attributes.iteritems()
+        'attributes':  [{'key': key, 'value': val}
+                        for key, val in entry.attributes.iteritems()
                         if key != 'id'],
         'link':        entry.attributes.get('id', ''),
         'subheadings': make_toc_items(entry.entries),
         'title':       entry.name,
       } for entry in entries]
 
     toc_items = []
     for section in sections:
       items_for_section = make_toc_items(section.structure)
       if toc_items and items_for_section:
         items_for_section[0]['separator'] = True
       toc_items.extend(items_for_section)
 
     return self._template_renderer.Render(
         self._templates.GetFromFile(
             '%s/table_of_contents.html' % PRIVATE_TEMPLATES).Get(),
         None,  # no request
         data_sources=('partials'),
         additional_context={'items': toc_items})