Docserver: Further refactoring to the new GithubFileSystem to make it update

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

 # Copyright (c) 2012 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.
 
 # These are fake fetchers that are used for testing and the preview server.
 # They return canned responses for URLs. appengine_wrappers.py uses the fake
 # fetchers if the App Engine imports fail.
 
 import os
 import re
@@ skipping 89 matching lines @@
       html.append('</tbody></table>')
       return '\n'.join(html)
     try:
       return ReadFile(path)
     except IOError:
       return None
 
 
 class _FakeGithubStat(_FakeFetcher):
   def fetch(self, url):
-    return '{ "commit": { "tree": { "sha": 0} } }'
+    return '{ "commit": { "sha": 0} }'
 
 
 class _FakeGithubZip(_FakeFetcher):
   def fetch(self, url):
     return _ReadTestData('github_file_system', 'apps_samples.zip', mode='rb')
 
 
 class _FakeRietveldAPI(_FakeFetcher):
   def __init__(self):
     self._base_pattern = re.compile(r'.*/(api/.*)')
@@ skipping 19 matching lines @@
   appengine_wrappers.ConfigureFakeUrlFetch({
     url_constants.OMAHA_PROXY_URL: _FakeOmahaProxy(),
     re.escape(url_constants.OMAHA_DEV_HISTORY): _FakeOmahaHistory(),
     '%s/.*' % url_constants.SVN_URL: _FakeSubversionServer(),
     '%s/.*' % url_constants.VIEWVC_URL: _FakeViewvcServer(),
     '%s/.*/commits/.*' % url_constants.GITHUB_REPOS: _FakeGithubStat(),
     '%s/.*/zipball' % url_constants.GITHUB_REPOS: _FakeGithubZip(),
     '%s/api/.*' % url_constants.CODEREVIEW_SERVER: _FakeRietveldAPI(),
     '%s/tarball/.*' % url_constants.CODEREVIEW_SERVER: _FakeRietveldTarball(),
   })