am 31018711: am 7d26cd19: Add an activity to Dev Tools that shows the Configuration and DisplayMetrics.

Merge commit '310187112b211f24c074fd9e34db9dddc59158f3'

* commit '310187112b211f24c074fd9e34db9dddc59158f3':
  Add an activity to Dev Tools that shows the Configuration and DisplayMetrics.