Merge "Fix google-explicit-constructor warnings."
am: 7bdd6a8b5a

* commit '7bdd6a8b5a24214ae9f8d47b0236c1bcd6319c89':
  Fix google-explicit-constructor warnings.

Change-Id: Ie9d7cf9d055a8025b5bad65d3e4fcff6174e1bfd