Merge changes from topic 'am-2e3c510745c349ef8379b216cc85be0a'

* changes:
  Merge changes I1450c126,I8926a922,I54403377,Idf216797 into nyc-mr2-dev am: 85f3996d am: 2cb7bad1
  DO NOT MERGE IP Connectivity metrics: add connect() statistics am: 2299a1c4 am: e55546a1  -s ours
  DO NOT MERGE Fix IP connectivity metrics tests am: 93c0de0a am: 6b480eca  -s ours
  DO NOT MERGE IP connectivity metrics: introduce ConnectStatistics and DNS statistics am: 097bde6c am: 3fc3dc26  -s ours
  DO NOT MERGE IP connectivity metrics: add transport field. am: 4c9d3f19 am: 66346ab7  -s ours