Merge changes I1cf472bd,Ibdaf2b23,I6967ad6f,I65f522c2,I0f220d1f, ...

* changes:
  Make the temporary NC sanitized instead of inlining
  Remove the legacy int from FullScore.
  Remove accessors for legacy int score from NAI
  Log the creation time of network agents
  Show time taken by the rematch
  Address some IDE warnings in ConnectivityService
  Copy arguments from NetworkAgent registration early