Define UMA events for interesting power adapter situations.

This adds events to the Platform.CrOSEvent histogram to record
specific situations we're interested in.  The user of the events
will be in the daisy overlay.

TEST=tested manually and observed samples in about:histograms

Change-Id: I1845ce1f90f5e77ecdc294834671328ce13c827b
Commit-Queue: Luigi Semenzato <>
Tested-by: Luigi Semenzato <>
Reviewed-by: Vincent Palatin <>
1 file changed
tree: aab837283ce72f87aae00c3b01c0d307425236df
  1. metrics/