Updating JSON Schema Compiler to add description field to schemas.

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

Index: chrome/common/extensions/docs/server2/api_data_source.py
diff --git a/chrome/common/extensions/docs/server2/api_data_source.py b/chrome/common/extensions/docs/server2/api_data_source.py
index 7f3d32cce0ad568421460759885c0cf3581089d8..3fdd37587de23c6e4c8eab94d7958da966880ae4 100644
--- a/chrome/common/extensions/docs/server2/api_data_source.py
+++ b/chrome/common/extensions/docs/server2/api_data_source.py
@@ -132,6 +132,7 @@ class _JSCModel(object):
       return {}
     return {
       'name': self._namespace.name,
+      'description': self._namespace.description,
       'types': self._GenerateTypes(self._namespace.types.values()),
       'functions': self._GenerateFunctions(self._namespace.functions),
       'events': self._GenerateEvents(self._namespace.events),