Docserver: Properly implement the Cron logic for ContentProvider and TemplateDataSource so that the…

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

Index: chrome/common/extensions/docs/server2/future.py
diff --git a/chrome/common/extensions/docs/server2/future.py b/chrome/common/extensions/docs/server2/future.py
index 0e9ef24317d36464cb237387d8cdc1be824d97be..4a903440aed592d9fc81104cc0fd60fdbe0daa49 100644
--- a/chrome/common/extensions/docs/server2/future.py
+++ b/chrome/common/extensions/docs/server2/future.py
@@ -7,6 +7,13 @@ import sys
 _no_value = object()
 
 
+def Collect(futures):
+  '''Creates a Future which returns a list of results from each Future in
+  |futures|.
+  '''
+  return Future(delegate=Gettable(lambda: [f.Get() for f in futures]))
+
+
 class Gettable(object):
   '''Allows a Future to accept a callable as a delegate. Wraps |f| in a .Get
   interface required by Future.