Extension Docs Server: Include a list of samples used in the api reference page.

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

Index: chrome/common/extensions/docs/server2/template_data_source_test.py
diff --git a/chrome/common/extensions/docs/server2/template_data_source_test.py b/chrome/common/extensions/docs/server2/template_data_source_test.py
index 93ed4d1e1f3b8ed16395e7b5dcbda5acbce3a51a..a50eec0a2014d71924e6b87f3b0b4d0ca1c2b163 100755
--- a/chrome/common/extensions/docs/server2/template_data_source_test.py
+++ b/chrome/common/extensions/docs/server2/template_data_source_test.py
@@ -15,6 +15,9 @@ from third_party.handlebar import Handlebar
 class _FakeRequest(object):
     pass
 
+class _FakeApiDataSource(object):
+    pass
+
 class _FakeSamplesDataSource(object):
   def Create(self, request):
     return {}
@@ -22,7 +25,7 @@ class _FakeSamplesDataSource(object):
 class TemplateDataSourceTest(unittest.TestCase):
   def setUp(self):
     self._base_path = os.path.join('test_data', 'template_data_source')
-    self._fake_api_data_source = {}
+    self._fake_api_data_source = _FakeApiDataSource()
     self._fake_api_list_data_source = {}
     self._fake_intro_data_source = {}
     self._fake_samples_data_source = _FakeSamplesDataSource()