Docserver: Persist stat cache for versioned file systems

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

Index: chrome/common/extensions/docs/server2/cron_servlet.py
diff --git a/chrome/common/extensions/docs/server2/cron_servlet.py b/chrome/common/extensions/docs/server2/cron_servlet.py
index 1c9bb93f261ed81770b2d59ec23bf9a482bc94a0..31746f511fad7acd24daa3f65e169ad53e9bac28 100644
--- a/chrome/common/extensions/docs/server2/cron_servlet.py
+++ b/chrome/common/extensions/docs/server2/cron_servlet.py
@@ -114,6 +114,8 @@ class CronServlet(Servlet):
         for path in refresh_paths:
           queue.add(taskqueue.Task(url='/_refresh/%s/%s' % (name, path),
                                    params={'commit': master_commit}))
+      queue.add(taskqueue.Task(url='/_refresh/instance_master',
+                               params={'commit': master_commit}))
       _log.info('%s took %s' % (title, timer.Stop().FormatElapsed()))
     except:
       # This should never actually happen (each cron step does its own