Merge "Fix google-explicit-constructor warnings." am: 8a414ededd am: c2d0d24b62
am: 7bf754716e

* commit '7bf754716ec5ddaf5e785cd82a414d8cc57ffd11':
  Fix google-explicit-constructor warnings.

Change-Id: I8ca6179f6ef4266d6ed5a82347d5e91c43e3ec49