Make Buildbot masters send ts_mon metrics, and add standard HTTP server metrics.

scripts/master/master_utils.py

Index: scripts/master/master_utils.py
diff --git a/scripts/master/master_utils.py b/scripts/master/master_utils.py
index 5e51e5f0578071cba9f486e04cb56d623533802f..772783745d0ec5ed5959bb854dde73169165770e 100644
--- a/scripts/master/master_utils.py
+++ b/scripts/master/master_utils.py
@@ -28,6 +28,7 @@ import master.chromium_status_bb8 as chromium_status
 from common import chromium_utils
 from master import buildbucket
 from master import cbe_json_status_push
+from master import monitoring_status_receiver
 from master import pubsub_json_status_push
 from master import status_logger
 import config
@@ -428,8 +429,9 @@ def AutoSetupMaster(c, active_master, mail_notifier=False,
         web_template_globals=web_template_globals,
         **kwargs))
 
-  # Add a status logger.
+  # Add a status logger and a ts_mon flushing receiver.
   c['status'].append(status_logger.StatusEventLogger())
+  c['status'].append(monitoring_status_receiver.MonitoringStatusReceiver())
 
   # Keep last build logs, the default is too low.
   c['buildHorizon'] = 1000